Standard Operating Procedures for Filing First and Second Provisional Income Tax Returns in Namibia

Learn how to file first and second provisional income tax returns in Namibia, including NamRA ITAS procedures, provisional tax deadlines, estimated taxable income, payment calculations and penalties for non-compliance.

Provisional income tax is an important part of Namibia’s tax administration system. It allows the Namibia Revenue Agency (NamRA) to collect income tax throughout the year rather than waiting until the end of a taxpayer’s financial or assessment year. Individuals, business owners, companies and close corporations that qualify as provisional taxpayers must understand their filing obligations, payment deadlines and estimated tax liabilities to remain compliant.

Filing provisional income tax returns involves more than making payments to NamRA. Taxpayers must estimate their taxable income, calculate the applicable tax liability, submit the required returns and settle the corresponding provisional tax payments within the prescribed periods.

We have prepared these standard operating procedures to explain how to file first and second provisional income tax returns in Namibia through the Integrated Tax Administration System (ITAS). The procedures cover individual and corporate provisional taxpayers, registration requirements, filing steps, payment calculations, applicable deadlines and penalties for non-compliance.

1. Understanding Provisional Income Tax in Namibia

Provisional income tax is an advance payment of income tax based on a taxpayer’s estimated taxable income for a particular year of assessment. Rather than paying the entire annual tax liability after the assessment year has ended, qualifying taxpayers make provisional payments during the year.

The system is administered by NamRA under the Income Tax Act 24 of 1981.

Provisional taxpayers are generally required to submit two provisional income tax returns during the relevant year:

• First provisional tax return: Provides an estimate of taxable income and the corresponding provisional tax liability for the year.
• Second provisional tax return: Updates the estimated taxable income and accounts for the total provisional tax payable for the year.

The two submissions allow NamRA to monitor tax payments against the taxpayer’s estimated annual liability.

Provisional tax payments do not replace the obligation to submit an annual income tax return. Taxpayers must still submit their final income tax returns and settle any outstanding balances after the relevant assessment year. Individuals earning business income may also need to understand how sole proprietors and partnerships submit individual income tax returns to NamRA.

2. Who Must Register as a Provisional Taxpayer in Namibia?

Not every taxpayer has the same provisional tax obligations. NamRA distinguishes between individuals earning income outside ordinary employment and companies or close corporations conducting business.

2.1 Individuals Earning Non-Remuneration Income

Individuals earning taxable income that is not remuneration may be required to register as provisional taxpayers.

Examples include individuals earning income from:

• Business operations and self-employment.
• Professional and consulting services.
• Independent contracting and freelancing.
• Farming activities.
• Other taxable income sources outside ordinary employment.

Individuals earning non-remuneration taxable income exceeding N$50,000 annually are identified in NamRA’s provisional taxpayer guidance as requiring registration.

An individual who receives a salary but also earns additional taxable income may also have provisional tax obligations, depending on the nature and amount of that income.

Individuals who operate businesses should ensure that their activities are properly registered for tax purposes. Further guidance is available on how to register your business for income tax in Namibia.

2.2 Farmers

Individuals registered as farmers are also included in the provisional tax system.

Farming income can fluctuate depending on production cycles, market conditions, rainfall and operating expenses. Farmers must therefore consider their expected taxable income when preparing provisional tax estimates.

Agricultural businesses should also consider the tax treatment of eligible farming expenses and deductions. This includes understanding special income tax deductions available to agricultural and farming enterprises.

2.3 Private Companies and Close Corporations

Private companies and close corporations are required to submit provisional income tax returns.

Companies and close corporations are automatically registered as provisional taxpayers upon registration for tax purposes, according to NamRA’s provisional tax guidance.

Their provisional tax obligations are linked to their respective financial years rather than the individual provisional tax calendar.

Businesses should understand their applicable corporate tax rates and how taxable profits are calculated. Our guide on how companies and close corporations calculate corporate income tax liability in Namibia provides additional information.

2.4 Provisional Taxpayer Registration

Individuals who meet the applicable registration requirements should apply to NamRA for provisional taxpayer registration.

Companies and close corporations should confirm that their tax registration details are correctly reflected in ITAS.

Taxpayers should verify their registration status before attempting to submit provisional income tax returns. Incorrect or incomplete registration details can interfere with the availability of returns on the ITAS portal.

Businesses that have not completed their initial incorporation should first consider the applicable company registration procedures in Namibia. Companies can also review the relevant forms and fees for registering a private company in Namibia.

3. First and Second Provisional Tax Deadlines in Namibia

The provisional tax deadlines depend on whether the taxpayer is an individual or a corporate entity. Individuals generally follow fixed dates, while companies and close corporations follow their respective financial years.

3.1 Individual Provisional Tax Deadlines

The tax year for individuals in Namibia runs from 1 March to the last day of February.

The following deadlines apply to individuals registered as provisional taxpayers:

The first provisional payment should generally bring the taxpayer’s payments to at least 40% of the final annual tax liability. By the second provisional payment, the combined provisional payments should reach at least 80% of the final annual tax liability.

3.2 Corporate Provisional Tax Deadlines

Companies and close corporations follow their own financial years when determining provisional tax deadlines.

Their filing obligations are structured as follows:

For corporate provisional tax, the first payment must generally represent at least 40% of the final annual tax liability, while the combined first and second payments should reach at least 80%. The final payment is made after the financial year-end.

Foreign businesses operating through branches in Namibia should also consider their applicable tax obligations and financial reporting arrangements. These may differ depending on their structure and activities, as explained in our guide to how foreign corporations and external branches calculate tax obligations under the Income Tax Act. Businesses entering the Namibian market through partnerships can also explore opportunities to form a joint venture with a locally registered company to launch and scale operations in Namibia.

3.3 Understanding the 40% and 80% Payment Requirements

The 40% and 80% requirements are important when preparing provisional tax calculations.

They help determine whether a taxpayer has made sufficient advance payments compared with the final tax liability for the year.

• First provisional payment: The first payment should generally be at least 40% of the final annual tax liability.
• Second provisional payment: The combined first and second payments should generally reach at least 80% of the final annual tax liability.
• Final tax settlement: Any remaining balance must be settled within the applicable final payment period.

Taxpayers should not confuse these minimum payment thresholds with the actual amount required when submitting a provisional return. NamRA’s provisional tax brochure describes the first individual payment as half of the annual estimate and the second payment as the total tax due, while the applicable legislation and tax guidance establish the minimum payment thresholds.

4. Documents and Information Required Before Filing

Before beginning the income tax filing process, taxpayers should prepare the financial information needed to calculate their estimated taxable income.

Submitting incomplete or inaccurate estimates can result in incorrect provisional tax assessments and potential penalties.

4.1 Individual Taxpayers

Individuals should prepare the following information, where applicable:

• NamRA tax identification and registration details.
• Estimated income from business activities.
• Professional and consulting income records.
• Rental income records.
• Farming income and expenditure information.
• Business operating expenses.
• PAYE information and tax certificates.
• Records of provisional tax payments already made.
• Supporting documents for allowable deductions.

Individuals earning both employment income and additional business income should account for PAYE already deducted when calculating their remaining provisional tax liability.

Employers must also meet their own PAYE registration and reporting obligations. Businesses that employ staff can review how to register as an employer for PAYE in Namibia.

4.2 Companies and Close Corporations

Companies and close corporations should prepare:

• Company or close corporation tax registration details.
• Financial statements or management accounts.
• Income and expenditure reports.
• Sales and revenue records.
• Business operating expenses.
• Payroll and PAYE information.
• Depreciation and capital allowance information, where applicable.
• Previous provisional tax submissions.
• Records of provisional payments already made.
• Financial year-end information.

Management accounts are particularly useful because they provide an indication of the business’s financial performance before the financial year-end.

Businesses should also understand the tax treatment of depreciation and eligible deductions when estimating taxable income. Relevant considerations include capital allowances, depreciation and building deductions for businesses in Namibia.

4.3 Estimating Taxable Income

The estimated taxable income should reflect the taxpayer’s expected taxable earnings for the relevant assessment year.

Taxable income is not necessarily the same as gross revenue or accounting profit. Taxpayers must consider applicable deductions, adjustments and tax rules when calculating the amount.

For example, a business should not simply report its total sales as taxable income. It must consider allowable business expenses and other relevant tax adjustments.

We recommend preparing a supporting calculation before accessing ITAS. This makes it easier to verify the figures entered into the provisional return. Businesses preparing financial projections for lenders or investors may also benefit from professional business plan preparation services in Namibia.

5. Standard Operating Procedures for Filing Provisional Tax Returns on ITAS

NamRA provides an online tax administration platform known as the Integrated Tax Administration System (ITAS). Registered taxpayers can use the platform to submit returns, make payments, access tax account information and manage other tax-related activities.

The official portal is available at https://www.itas.namra.org.na/.

The following procedures explain how to submit provisional income tax returns electronically.

5.1 Step 1: Log In to the NamRA ITAS Portal

Access the official ITAS portal using a web browser.

Enter your registered login credentials, including your user ID and password.

Ensure that you are accessing the correct taxpayer account before proceeding.

If you cannot access your account, verify your login details and contact us for guidance on resolving business compliance issues alongside NamRA’s official support channels.

5.2 Step 2: Navigate to the Returns Section

After successfully logging in:

1. Locate the Returns section on the ITAS dashboard.
2. Select My Returns.
3. Navigate to the return search function.
4. Search for the relevant provisional income tax return.
5. Identify the return corresponding to the applicable assessment or financial year.

Taxpayers should ensure that they select the correct provisional return rather than an ordinary annual income tax return or another tax type.

5.3 Step 3: Select the Provisional Income Tax Return

Locate the provisional return that needs to be submitted.

Select the relevant return and open the filing interface.

Check the taxpayer details and the applicable tax period before entering financial information.

If the expected return is not available, verify the taxpayer’s registration status and whether the correct assessment period has been selected.

5.4 Step 4: Enter Estimated Taxable Income

Enter the estimated taxable income for the relevant year of assessment.

The information should be based on the taxpayer’s financial records and a reasonable projection of expected income.

For individuals, the calculation may include:

• Business and self-employment income.
• Professional and consulting income.
• Rental income.
• Farming income.
• Other taxable non-remuneration income.

For companies and close corporations, the calculation should reflect expected business income, allowable expenses and applicable tax adjustments.

Ensure that the figures entered agree with the supporting provisional tax calculations prepared before filing.

An unrealistic estimate can expose the taxpayer to additional tax if the final taxable income is significantly higher than the estimate.

5.5 Step 5: Review the Provisional Tax Calculation

Before submitting the return, review the information entered into ITAS.

Check the following:

• Taxpayer identification details.
• Relevant assessment or financial year.
• Estimated taxable income.
• Applicable tax calculations.
• Previous provisional payments.
• PAYE credits, where applicable.
• Amount payable for the current provisional period.

Confirm that the first or second provisional return is being submitted for the correct period.

Where the system calculates an amount payable, compare it against your supporting calculations to identify possible discrepancies.

5.6 Step 6: Complete the Declaration

After reviewing the provisional return, proceed to the declaration section.

Read the declaration and confirm that the information submitted is accurate and complete.

Tick the declaration checkbox where required.

Enter the verification code generated by the ITAS system and select the submission option.

Follow any additional instructions displayed by the portal.

5.7 Step 7: Submit the Provisional Tax Return

Submit the completed provisional income tax return through ITAS.

Wait for the system to process the submission and check whether it provides a successful submission confirmation.

Do not assume that a return has been submitted merely because you completed the declaration.

Where available, download or save the submission confirmation for your records.

5.8 Step 8: Make the Required Provisional Tax Payment

After submitting the return, arrange payment of the applicable provisional tax amount.

Use the payment instructions and reference details provided through ITAS.

Ensure that the payment is allocated to the correct taxpayer account and tax period.

Where payment is made through a bank transfer or another approved payment channel, retain the proof of payment.

5.9 Step 9: Verify Payment Allocation

After making the payment, access your ITAS account to check the taxpayer’s account statement.

Confirm that the payment has been received and correctly allocated.

If the payment does not appear, retain the transaction confirmation and contact NamRA to investigate.

This step is important because making a payment does not automatically confirm that the corresponding tax obligation has been cleared.

NamRA’s published company provisional tax procedures provide further guidance on filing operational company provisional returns through ITAS.

6. How to Calculate First and Second Provisional Tax Payments in Namibia

Accurate provisional tax calculations are essential for maintaining compliance and avoiding underestimation penalties.

The calculations should be based on the estimated annual taxable income and the applicable income tax rates.

6.1 Calculating the First Provisional Tax Payment

The first provisional tax payment is intended to cover part of the taxpayer’s estimated annual tax liability.

For an individual, the first payment is generally due by 30 August.

For a company or close corporation, it is due within six months after the beginning of its financial year.

The general calculation approach is:

First provisional payment = 50% of the estimated annual tax liability, less applicable credits or payments where relevant.

For example, assume an individual estimates an annual income tax liability of N$60,000.

The illustrative first provisional payment would be:

The 40% minimum payment threshold should also be considered when evaluating whether the payment is sufficient against the eventual annual tax assessment.

6.2 Calculating the Second Provisional Tax Payment

The second provisional return updates the taxpayer’s estimated annual tax liability.

The taxpayer should consider actual income earned, revised income projections, allowable expenses and provisional payments already made.

The general calculation is:

Second provisional payment = Revised estimated annual tax liability − First provisional payment − Other applicable tax credits.

For example, assume the taxpayer initially estimated an annual tax liability of N$60,000 and paid N$30,000 during the first provisional period.

Following an updated financial review, the annual estimated liability increases to N$75,000.

The example demonstrates how the second payment can be adjusted when the estimated annual tax liability changes.

The taxpayer must still consider the applicable minimum payment requirements and settle any remaining balance during the final tax payment period.

6.3 Corporate Provisional Tax Calculations

Companies and close corporations should calculate provisional tax based on their estimated taxable income for the financial year.

The calculation should take into account:

• Expected business revenue.
• Deductible operating expenses.
• Applicable capital allowances.
• Other taxable income.
• Tax adjustments.
• Applicable corporate income tax rates.
• Previous provisional tax payments.

The first payment generally covers half of the estimated annual liability, while the second payment brings the total provisional payments towards the full estimated liability.

The actual amount payable must be determined using the applicable tax rules and the company’s financial year.

6.4 Why Provisional Tax Estimates Must Be Updated

Business performance can change significantly during a financial year.

For example, a company may experience increased sales, unexpected operating expenses, new contracts or reduced business activity.

If the original estimate no longer reflects the business’s financial position, the second provisional return should be prepared using updated information.

This helps taxpayers avoid relying on outdated figures and reduces the risk of significant underestimation.

Businesses with international transactions should also review whether transfer pricing and anti-avoidance rules affect their taxable income calculations. This is particularly relevant when considering transfer pricing and arm’s-length rules under Section 95 in Namibia.

7. Penalties for Failing to File Provisional Tax Returns

Failure to comply with provisional income tax requirements can result in additional tax, penalties and interest.

The Income Tax Act 24 of 1981 provides for penalties relating to late submissions, late payments and underestimation of taxable income.

7.1 Late Submission Penalties

Taxpayers who fail to submit provisional income tax returns by the applicable deadlines may incur a penalty of N$100 per day for as long as the required estimate remains outstanding.

This penalty applies to both first and second provisional tax returns.

Taxpayers should therefore submit their returns on time, even when they are experiencing financial difficulties that may prevent them from immediately paying the full amount due.

7.2 Late Payment Penalties

Late payment of provisional income tax attracts a penalty of 10% per month or part of a month on the unpaid amount.

The penalty is limited to the amount of the outstanding tax.

Interest may also apply to unpaid tax at the applicable rate. PwC’s July 2026 tax administration guidance identifies interest of 20% per annum for late provisional tax payments, subject to the applicable statutory limits.

7.3 Underestimation of Taxable Income

Underestimation penalties can arise when the provisional taxpayer’s estimated taxable income falls below the statutory requirements compared with the final assessed taxable income.

The relevant requirements include:

• The first provisional estimate must satisfy the applicable 80% taxable-income benchmark relating to the first half of the assessment year.
• The final or second estimate must satisfy the applicable 80% benchmark against the final taxable income for the year.

An additional tax penalty of up to 100% may be imposed in circumstances covered by the legislation.

However, the Minister may remit all or part of the additional tax where the statutory conditions for remission are satisfied, including circumstances involving unexpected changes in taxable income.

Taxpayers facing significant penalties or disputed assessments may need to understand the available procedures for lodging tax objections and appeals with NamRA. Where appropriate, eligible businesses may also explore tax penalty waivers and debt amnesty relief in Namibia.

7.4 Consequences of Non-Compliance

Failure to meet provisional tax obligations can result in:

• Accumulating daily late submission penalties.
• Additional monthly late payment penalties.
• Interest on outstanding tax.
• Underestimation penalties.
• Outstanding tax balances on the taxpayer’s ITAS account.
• Difficulties obtaining tax compliance documentation.

Maintaining accurate financial records and monitoring provisional tax deadlines helps reduce these risks.

8. Best Practices for Maintaining Provisional Tax Compliance

Businesses and individuals should establish internal procedures to ensure that provisional tax returns are prepared and submitted on time.

We recommend the following practices.

8.1 Maintain Accurate Financial Records

Keep updated records of income, expenses, business transactions and tax payments.

Companies should maintain reliable management accounts to support their provisional tax calculations.

Individuals earning business or professional income should also maintain proper records of their taxable earnings and deductible expenses.

8.2 Monitor Provisional Tax Deadlines

Maintain a tax compliance calendar showing the first and second provisional return deadlines.

For companies and close corporations, the calendar should be based on the commencement and end dates of their respective financial years.

For individuals, the calendar should reflect the relevant February-to-February assessment year.

8.3 Review Estimated Taxable Income Regularly

Do not rely exclusively on the original annual estimate when preparing the second provisional return.

Review the actual financial performance of the business or individual taxpayer and update the estimated tax liability where necessary.

8.4 Reconcile Provisional Payments

Keep a record of all provisional payments made through the year.

Compare these payments against the amounts reflected in the ITAS account statement.

This helps identify outstanding balances, incorrectly allocated payments and potential discrepancies before the final income tax return is submitted.

8.5 Retain Supporting Documentation

Maintain copies of:

• Submitted provisional tax returns.
• ITAS submission confirmations.
• Provisional tax calculations.
• Financial statements and management accounts.
• Payment confirmations.
• Relevant tax correspondence.
• Supporting income and expense records.

These documents can be useful if NamRA requests clarification or supporting information regarding a provisional tax estimate.

Businesses should also maintain their statutory records and corporate administration documents. This may include obtaining a NamRA certificate of good standing when required for compliance-related purposes, while ongoing governance obligations can be supported through company secretarial services in Namibia.

8.6 Seek Professional Tax Assistance Where Necessary

Taxpayers with complex business structures, multiple income sources or substantial changes in taxable income should consider obtaining professional assistance.

A tax practitioner or accountant can help review estimated taxable income, identify relevant deductions, prepare provisional tax calculations and reconcile payments.

Professional assistance is particularly useful for companies and close corporations that need to coordinate provisional tax submissions with their financial reporting and annual tax returns.

Businesses that provide tax advisory services should also understand the requirements for registering as tax practitioners in Namibia.

9. Official NamRA Resources for Provisional Income Tax Filing

Taxpayers should use official NamRA resources when confirming filing requirements, deadlines and payment procedures.

The following resources provide additional guidance:

Taxpayers operating in specialised industries should also consider sector-specific requirements. For example, mining and petroleum entities may have additional corporate income tax considerations.

Businesses making payments to foreign service providers or receiving foreign royalty income should also review the applicable withholding tax rules. These include withholding tax on services and foreign royalties in Namibia.

Companies distributing dividends to non-resident shareholders should consider their obligations relating to Non-Resident Shareholders’ Tax on dividends. Similarly, businesses making interest payments should understand the applicable withholding tax on interest procedures.

Where a Namibian business has international operations, a tax residency certificate from NamRA may be relevant when establishing tax residency for cross-border purposes.

Non-profit organisations should also distinguish between ordinary income tax registration and the requirements for obtaining tax-exempt status. Relevant guidance is available for non-profit organisations and Section 21 companies applying for tax-exempt status and for public benefit organisations and charitable foundations registering for tax exemption.

Where the wording of an online guide differs from the applicable legislation or a taxpayer’s specific circumstances, taxpayers should confirm the correct treatment directly with NamRA or a qualified tax professional.

10. Frequently Asked Questions About Provisional Tax in Namibia

10.1 When Is the First Provisional Tax Return Due in Namibia?

For individuals registered as provisional taxpayers, the first provisional tax return is due on or before 30 August each year. Companies and close corporations must submit their first provisional return within six months after the commencement of their financial year.

10.2 When Is the Second Provisional Tax Return Due?

The second provisional tax return for individuals is due on or before 28 February. Companies and close corporations must submit their second provisional return by the last day of their respective financial years.

10.3 How Do I Submit a Provisional Tax Return on ITAS?

Log in to the NamRA ITAS portal, navigate to Returns, select My Returns and search for the relevant provisional income tax return. Enter your estimated taxable income, review the tax calculation, complete the declaration and verification process, and submit the return. Arrange payment using the applicable payment instructions and verify that it reflects correctly in your tax account.

For additional assistance with business compliance, taxpayers may also need to review their annual tax filing obligations, including how micro and small enterprises file income tax returns on ITAS. Businesses considering changes to their operations should also understand the procedures for voluntary business tax deregistration and liquidation clearances.

Meta Description: Learn how to file first and second provisional income tax returns in Namibia, including NamRA ITAS procedures, provisional tax deadlines, estimated taxable income, payment calculations and penalties for non-compliance.# Standard Operating Procedures for Filing First and Second Provisional Income Tax Returns in Namibia

Provisional income tax is an important part of Namibia’s tax administration system. It allows the Namibia Revenue Agency (NamRA) to collect income tax throughout the year rather than waiting until the end of a taxpayer’s financial or assessment year. Individuals, business owners, companies and close corporations that qualify as provisional taxpayers must understand their filing obligations, payment deadlines and estimated tax liabilities to remain compliant.

Filing provisional income tax returns involves more than making payments to NamRA. Taxpayers must estimate their taxable income, calculate the applicable tax liability, submit the required returns and settle the corresponding provisional tax payments within the prescribed periods.

We have prepared these standard operating procedures to explain how to file first and second provisional income tax returns in Namibia through the Integrated Tax Administration System (ITAS). The procedures cover individual and corporate provisional taxpayers, registration requirements, filing steps, payment calculations, applicable deadlines and penalties for non-compliance.

1. Understanding Provisional Income Tax in Namibia

Provisional income tax is an advance payment of income tax based on a taxpayer’s estimated taxable income for a particular year of assessment. Rather than paying the entire annual tax liability after the assessment year has ended, qualifying taxpayers make provisional payments during the year.

The system is administered by NamRA under the Income Tax Act 24 of 1981.

Provisional taxpayers are generally required to submit two provisional income tax returns during the relevant year:

• First provisional tax return: Provides an estimate of taxable income and the corresponding provisional tax liability for the year.
• Second provisional tax return: Updates the estimated taxable income and accounts for the total provisional tax payable for the year.

The two submissions allow NamRA to monitor tax payments against the taxpayer’s estimated annual liability.

Provisional tax payments do not replace the obligation to submit an annual income tax return. Taxpayers must still submit their final income tax returns and settle any outstanding balances after the relevant assessment year. Individuals earning business income may also need to understand how sole proprietors and partnerships submit individual income tax returns to NamRA.

2. Who Must Register as a Provisional Taxpayer in Namibia?

Not every taxpayer has the same provisional tax obligations. NamRA distinguishes between individuals earning income outside ordinary employment and companies or close corporations conducting business.

2.1 Individuals Earning Non-Remuneration Income

Individuals earning taxable income that is not remuneration may be required to register as provisional taxpayers.

Examples include individuals earning income from:

• Business operations and self-employment.
• Professional and consulting services.
• Independent contracting and freelancing.
• Farming activities.
• Other taxable income sources outside ordinary employment.

Individuals earning non-remuneration taxable income exceeding N$50,000 annually are identified in NamRA’s provisional taxpayer guidance as requiring registration.

An individual who receives a salary but also earns additional taxable income may also have provisional tax obligations, depending on the nature and amount of that income.

Individuals who operate businesses should ensure that their activities are properly registered for tax purposes. Further guidance is available on how to register your business for income tax in Namibia.

2.2 Farmers

Individuals registered as farmers are also included in the provisional tax system.

Farming income can fluctuate depending on production cycles, market conditions, rainfall and operating expenses. Farmers must therefore consider their expected taxable income when preparing provisional tax estimates.

Agricultural businesses should also consider the tax treatment of eligible farming expenses and deductions. This includes understanding special income tax deductions available to agricultural and farming enterprises.

2.3 Private Companies and Close Corporations

Private companies and close corporations are required to submit provisional income tax returns.

Companies and close corporations are automatically registered as provisional taxpayers upon registration for tax purposes, according to NamRA’s provisional tax guidance.

Their provisional tax obligations are linked to their respective financial years rather than the individual provisional tax calendar.

Businesses should understand their applicable corporate tax rates and how taxable profits are calculated. Our guide on how companies and close corporations calculate corporate income tax liability in Namibia provides additional information.

2.4 Provisional Taxpayer Registration

Individuals who meet the applicable registration requirements should apply to NamRA for provisional taxpayer registration.

Companies and close corporations should confirm that their tax registration details are correctly reflected in ITAS.

Taxpayers should verify their registration status before attempting to submit provisional income tax returns. Incorrect or incomplete registration details can interfere with the availability of returns on the ITAS portal.

Businesses that have not completed their initial incorporation should first consider the applicable company registration procedures in Namibia. Companies can also review the relevant forms and fees for registering a private company in Namibia.

3. First and Second Provisional Tax Deadlines in Namibia

The provisional tax deadlines depend on whether the taxpayer is an individual or a corporate entity. Individuals generally follow fixed dates, while companies and close corporations follow their respective financial years.

3.1 Individual Provisional Tax Deadlines

The tax year for individuals in Namibia runs from 1 March to the last day of February.

The following deadlines apply to individuals registered as provisional taxpayers:

The first provisional payment should generally bring the taxpayer’s payments to at least 40% of the final annual tax liability. By the second provisional payment, the combined provisional payments should reach at least 80% of the final annual tax liability.

3.2 Corporate Provisional Tax Deadlines

Companies and close corporations follow their own financial years when determining provisional tax deadlines.

Their filing obligations are structured as follows:

For corporate provisional tax, the first payment must generally represent at least 40% of the final annual tax liability, while the combined first and second payments should reach at least 80%. The final payment is made after the financial year-end.

Foreign businesses operating through branches in Namibia should also consider their applicable tax obligations and financial reporting arrangements. These may differ depending on their structure and activities, as explained in our guide to how foreign corporations and external branches calculate tax obligations under the Income Tax Act.

3.3 Understanding the 40% and 80% Payment Requirements

The 40% and 80% requirements are important when preparing provisional tax calculations.

They help determine whether a taxpayer has made sufficient advance payments compared with the final tax liability for the year.

• First provisional payment: The first payment should generally be at least 40% of the final annual tax liability.
• Second provisional payment: The combined first and second payments should generally reach at least 80% of the final annual tax liability.
• Final tax settlement: Any remaining balance must be settled within the applicable final payment period.

Taxpayers should not confuse these minimum payment thresholds with the actual amount required when submitting a provisional return. NamRA’s provisional tax brochure describes the first individual payment as half of the annual estimate and the second payment as the total tax due, while the applicable legislation and tax guidance establish the minimum payment thresholds.

4. Documents and Information Required Before Filing

Before beginning the income tax filing process, taxpayers should prepare the financial information needed to calculate their estimated taxable income.

Submitting incomplete or inaccurate estimates can result in incorrect provisional tax assessments and potential penalties.

4.1 Individual Taxpayers

Individuals should prepare the following information, where applicable:

• NamRA tax identification and registration details.
• Estimated income from business activities.
• Professional and consulting income records.
• Rental income records.
• Farming income and expenditure information.
• Business operating expenses.
• PAYE information and tax certificates.
• Records of provisional tax payments already made.
• Supporting documents for allowable deductions.

Individuals earning both employment income and additional business income should account for PAYE already deducted when calculating their remaining provisional tax liability.

Employers must also meet their own PAYE registration and reporting obligations. Businesses that employ staff can review how to register as an employer for PAYE in Namibia.

4.2 Companies and Close Corporations

Companies and close corporations should prepare:

• Company or close corporation tax registration details.
• Financial statements or management accounts.
• Income and expenditure reports.
• Sales and revenue records.
• Business operating expenses.
• Payroll and PAYE information.
• Depreciation and capital allowance information, where applicable.
• Previous provisional tax submissions.
• Records of provisional payments already made.
• Financial year-end information.

Management accounts are particularly useful because they provide an indication of the business’s financial performance before the financial year-end.

Businesses should also understand the tax treatment of depreciation and eligible deductions when estimating taxable income. Relevant considerations include capital allowances, depreciation and building deductions for businesses in Namibia.

4.3 Estimating Taxable Income

The estimated taxable income should reflect the taxpayer’s expected taxable earnings for the relevant assessment year.

Taxable income is not necessarily the same as gross revenue or accounting profit. Taxpayers must consider applicable deductions, adjustments and tax rules when calculating the amount.

For example, a business should not simply report its total sales as taxable income. It must consider allowable business expenses and other relevant tax adjustments.

We recommend preparing a supporting calculation before accessing ITAS. This makes it easier to verify the figures entered into the provisional return. Businesses planning future growth may also benefit from a professionally prepared business plan in Namibia when forecasting revenue and expenses.

5. Standard Operating Procedures for Filing Provisional Tax Returns on ITAS

NamRA provides an online tax administration platform known as the Integrated Tax Administration System (ITAS). Registered taxpayers can use the platform to submit returns, make payments, access tax account information and manage other tax-related activities.

The official portal is available at https://www.itas.namra.org.na/.

The following procedures explain how to submit provisional income tax returns electronically.

5.1 Step 1: Log In to the NamRA ITAS Portal

Access the official ITAS portal using a web browser.

Enter your registered login credentials, including your user ID and password.

Ensure that you are accessing the correct taxpayer account before proceeding.

If you cannot access your account, verify your login details and contact NamRA for assistance with account access or registration issues.

5.2 Step 2: Navigate to the Returns Section

After successfully logging in:

1. Locate the Returns section on the ITAS dashboard.
2. Select My Returns.
3. Navigate to the return search function.
4. Search for the relevant provisional income tax return.
5. Identify the return corresponding to the applicable assessment or financial year.

Taxpayers should ensure that they select the correct provisional return rather than an ordinary annual income tax return or another tax type.

5.3 Step 3: Select the Provisional Income Tax Return

Locate the provisional return that needs to be submitted.

Select the relevant return and open the filing interface.

Check the taxpayer details and the applicable tax period before entering financial information.

If the expected return is not available, verify the taxpayer’s registration status and whether the correct assessment period has been selected.

5.4 Step 4: Enter Estimated Taxable Income

Enter the estimated taxable income for the relevant year of assessment.

The information should be based on the taxpayer’s financial records and a reasonable projection of expected income.

For individuals, the calculation may include:

• Business and self-employment income.
• Professional and consulting income.
• Rental income.
• Farming income.
• Other taxable non-remuneration income.

For companies and close corporations, the calculation should reflect expected business income, allowable expenses and applicable tax adjustments.

Ensure that the figures entered agree with the supporting provisional tax calculations prepared before filing.

An unrealistic estimate can expose the taxpayer to additional tax ifthe final taxable income is significantly higher than the estimate.

5.5 Step 5: Review the Provisional Tax Calculation

Before submitting the return, review the information entered into ITAS.

Check the following:

• Taxpayer identification details.
• Relevant assessment or financial year.
• Estimated taxable income.
• Applicable tax calculations.
• Previous provisional payments.
• PAYE credits, where applicable.
• Amount payable for the current provisional period.

Confirm that the first or second provisional return is being submitted for the correct period.

Where the system calculates an amount payable, compare it against your supporting calculations to identify possible discrepancies.

5.6 Step 6: Complete the Declaration

After reviewing the provisional return, proceed to the declaration section.

Read the declaration and confirm that the information submitted is accurate and complete.

Tick the declaration checkbox where required.

Enter the verification code generated by the ITAS system and select the submission option.

Follow any additional instructions displayed by the portal.

5.7 Step 7: Submit the Provisional Tax Return

Submit the completed provisional income tax return through ITAS.

Wait for the system to process the submission and check whether it provides a successful submission confirmation.

Do not assume that a return has been submitted merely because you completed the declaration.

Where available, download or save the submission confirmation for your records.

5.8 Step 8: Make the Required Provisional Tax Payment

After submitting the return, arrange payment of the applicable provisional tax amount.

Use the payment instructions and reference details provided through ITAS.

Ensure that the payment is allocated to the correct taxpayer account and tax period.

Where payment is made through a bank transfer or another approved payment channel, retain the proof of payment.

5.9 Step 9: Verify Payment Allocation

After making the payment, access your ITAS account to check the taxpayer’s account statement.

Confirm that the payment has been received and correctly allocated.

If the payment does not appear, retain the transaction confirmation and contact NamRA to investigate.

This step is important because making a payment does not automatically confirm that the corresponding tax obligation has been cleared.

NamRA’s published company provisional tax procedures provide further guidance on filing operational company provisional returns through ITAS.

6. How to Calculate First and Second Provisional Tax Payments in Namibia

Accurate provisional tax calculations are essential for maintaining compliance and avoiding underestimation penalties.

The calculations should be based on the estimated annual taxable income and the applicable income tax rates.

6.1 Calculating the First Provisional Tax Payment

The first provisional tax payment is intended to cover part of the taxpayer’s estimated annual tax liability.

For an individual, the first payment is generally due by 30 August.

For a company or close corporation, it is due within six months after the beginning of its financial year.

The general calculation approach is:

First provisional payment = 50% of the estimated annual tax liability, less applicable credits or payments where relevant.

For example, assume an individual estimates an annual income tax liability of N$60,000.

The illustrative first provisional payment would be:

The 40% minimum payment threshold should also be considered when evaluating whether the payment is sufficient against the eventual annual tax assessment.

6.2 Calculating the Second Provisional Tax Payment

The second provisional return updates the taxpayer’s estimated annual tax liability.

The taxpayer should consider actual income earned, revised income projections, allowable expenses and provisional payments already made.

The general calculation is:

Second provisional payment = Revised estimated annual tax liability − First provisional payment − Other applicable tax credits.

For example, assume the taxpayer initially estimated an annual tax liability of N$60,000 and paid N$30,000 during the first provisional period.

Following an updated financial review, the annual estimated liability increases to N$75,000.

The example demonstrates how the second payment can be adjusted when the estimated annual tax liability changes.

The taxpayer must still consider the applicable minimum payment requirements and settle any remaining balance during the final tax payment period.

6.3 Corporate Provisional Tax Calculations

Companies and close corporations should calculate provisional tax based on their estimated taxable income for the financial year.

The calculation should take into account:

• Expected business revenue.
• Deductible operating expenses.
• Applicable capital allowances.
• Other taxable income.
• Tax adjustments.
• Applicable corporate income tax rates.
• Previous provisional tax payments.

The first payment generally covers half of the estimated annual liability, while the second payment brings the total provisional payments towards the full estimated liability.

The actual amount payable must be determined using the applicable tax rules and the company’s financial year.

6.4 Why Provisional Tax Estimates Must Be Updated

Business performance can change significantly during a financial year.

For example, a company may experience increased sales, unexpected operating expenses, new contracts or reduced business activity.

If the original estimate no longer reflects the business’s financial position, the second provisional return should be prepared using updated information.

This helps taxpayers avoid relying on outdated figures and reduces the risk of significant underestimation.

Businesses with international transactions should also review whether transfer pricing and anti-avoidance rules affect their taxable income calculations. This is particularly relevant when considering transfer pricing and arm’s-length rules under Section 95 in Namibia.

7. Penalties for Failing to File Provisional Tax Returns

Failure to comply with provisional income tax requirements can result in additional tax, penalties and interest.

The Income Tax Act 24 of 1981 provides for penalties relating to late submissions, late payments and underestimation of taxable income.

7.1 Late Submission Penalties

Taxpayers who fail to submit provisional income tax returns by the applicable deadlines may incur a penaltyof N$100 per day for as long as the required estimate remains outstanding.

This penalty applies to both first and second provisional tax returns.

Taxpayers should therefore submit their returns on time, even when they are experiencing financial difficulties that may prevent them from immediately paying the full amount due.

7.2 Late Payment Penalties

Late payment of provisional income tax attracts a penalty of 10% per month or part of a month on the unpaid amount.

The penalty is limited to the amount of the outstanding tax.

Interest may also apply to unpaid tax at the applicable rate. PwC’s July 2026 tax administration guidance identifies interest of 20% per annum for late provisional tax payments, subject to the applicable statutory limits.

7.3 Underestimation of Taxable Income

Underestimation penalties can arise when the provisional taxpayer’s estimated taxable income falls below the statutory requirements compared with the final assessed taxable income.

The relevant requirements include:

• The first provisional estimate must satisfy the applicable 80% taxable-income benchmark relating to the first half of the assessment year.
• The final or second estimate must satisfy the applicable 80% benchmark against the final taxable income for the year.

An additional tax penalty of up to 100% may be imposed in circumstances covered by the legislation.

However, the Minister may remit all or part of the additional tax where the statutory conditions for remission are satisfied, including circumstances involving unexpected changes in taxable income.

Taxpayers facing significant penalties or disputed assessments may need to understand the available procedures for lodging tax objections and appeals with NamRA. Where appropriate, eligible businesses may also explore tax penalty waivers and debt amnesty relief in Namibia.

7.4 Consequences of Non-Compliance

Failure to meet provisional tax obligations can result in:

• Accumulating daily late submission penalties.
• Additional monthly late payment penalties.
• Interest on outstanding tax.
• Underestimation penalties.
• Outstanding tax balances on the taxpayer’s ITAS account.
• Difficulties obtaining tax compliance documentation.

Maintaining accurate financial records and monitoring provisional tax deadlines helps reduce these risks.

8. Best Practices for Maintaining Provisional Tax Compliance

Businesses and individuals should establish internal procedures to ensure that provisional tax returns are prepared and submitted on time.

We recommend the following practices.

8.1 Maintain Accurate Financial Records

Keep updated records of income, expenses, business transactions and tax payments.

Companies should maintain reliable management accounts to support their provisional tax calculations.

Individuals earning business or professional income should also maintain proper records of their taxable earnings and deductible expenses.

8.2 Monitor Provisional Tax Deadlines

Maintain a tax compliance calendar showing the first and second provisional return deadlines.

For companies and close corporations, the calendar should be based on the commencement and end dates of their respective financial years.

For individuals, the calendar should reflect the relevant February-to-February assessment year.

8.3 Review Estimated Taxable Income Regularly

Do not rely exclusively on the original annual estimate when preparing the second provisional return.

Review the actual financial performance of the business or individual taxpayer and update the estimated tax liability where necessary.

8.4 Reconcile Provisional Payments

Keep a record of all provisional payments made through the year.

Compare these payments against the amounts reflected in the ITAS account statement.

This helps identify outstanding balances, incorrectly allocated payments and potential discrepancies before the final income tax return is submitted.

8.5 Retain Supporting Documentation

Maintain copies of:

• Submitted provisional tax returns.
• ITAS submission confirmations.
• Provisional tax calculations.
• Financial statements and management accounts.
• Payment confirmations.
• Relevant tax correspondence.
• Supporting income and expense records.

These documents can be useful if NamRA requests clarification or supporting information regarding a provisional tax estimate.

Businesses should also maintain their statutory records and corporate administration documents. This may include obtaining a NamRA certificate of good standing when required for compliance-related purposes, while ongoing corporate administration can be supported through company secretarial services in Namibia.

8.6 Seek Professional Tax Assistance Where Necessary

Taxpayers with complex business structures, multiple income sources or substantial changes in taxable income should consider obtaining professional assistance.

A tax practitioner or accountant can help review estimated taxable income, identify relevant deductions, prepare provisional tax calculations and reconcile payments.

Professional assistance is particularly useful for companies and close corporations that need to coordinate provisional tax submissions with their financial reporting and annual tax returns.

Businesses that provide tax advisory services should also understand the requirements for registering as tax practitioners in Namibia.

9. Official NamRA Resources for Provisional Income Tax Filing

Taxpayers should use official NamRA resources when confirming filing requirements, deadlines and payment procedures.

The following resources provide additional guidance:

Taxpayers operating in specialised industries should also consider sector-specific requirements. For example, mining and petroleum entities may have additional corporate income tax considerations.

Businesses making payments to foreign service providers or receiving foreign royalty income should also review the applicable withholding tax rules. These include withholding tax on services and foreign royalties in Namibia.

Companies distributing dividends to non-resident shareholders should consider their obligations relating to Non-Resident Shareholders’ Tax on dividends. Similarly, businesses making interest payments should understand the applicable withholding tax on interest procedures.

Where a Namibian business has international operations, a tax residency certificate from NamRA may be relevant when establishing tax residency for cross-border purposes.

Businesses looking to expand into Namibia with a local partner may also explore opportunities to form a joint venture with a registered Namibian company while maintaining compliance with local tax obligations.

Non-profit organisations should also distinguish between ordinary income tax registration and the requirements for obtaining tax-exempt status. Relevant guidance is available for non-profit organisations and Section 21 companies applying for tax-exempt status and for public benefit organisations and charitable foundations registering for tax exemption.

Where the wording of an online guide differs from the applicable legislation or a taxpayer’s specific circumstances, taxpayers should confirm the correct treatment directly with NamRA or a qualified tax professional.

10. Frequently Asked Questions About Provisional Tax in Namibia

10.1 When Is the First Provisional Tax Return Due in Namibia?

For individuals registered as provisional taxpayers, the first provisional tax return is due on or before 30 August each year. Companies and close corporations must submit their first provisional return within six months after the commencement of their financial year.

10.2 When Is the Second Provisional Tax Return Due?

The second provisional tax return for individuals is due on or before 28 February. Companies and close corporations must submit their second provisional return by the last day of their respective financial years.

10.3 How Do I Submit a Provisional Tax Return on ITAS?

Log in to the NamRA ITAS portal, navigate to Returns, select My Returns and search for the relevant provisional income tax return. Enter your estimated taxable income, review the tax calculation, complete the declaration and verification process, and submit the return. Arrange payment using the applicable payment instructions and verify that it reflects correctly in your tax account.

For additional assistance with business compliance, taxpayers may also need to review their annual tax filing obligations, including how micro and small enterprises file income tax returns on ITAS. Businesses considering changes to their operations should also understand the procedures for voluntary business tax deregistration and liquidation clearances. If further guidance is required, businesses can contact our team for additional assistance.