Verify Your SARS Auto-Assessment: Key Steps for Taxpayers

Millions of South Africans are set to receive auto-assessments from the South African Revenue Service (SARS) for the 2026 filing season, necessitating careful review by taxpayers. This automated process aims to streamline tax submissions across South Africa, making compliance simpler for many. However, SARS cannot independently verify every aspect of a taxpayer's financial affairs, placing the onus squarely on individuals to ensure the accuracy of their pre-populated returns. Taxpayers must meticulously check these assessments against their own records to prevent discrepancies or potential penalties, which can arise from incorrect or incomplete information.

Understanding Auto-Assessments

Auto-assessments by the South African Revenue Service (SARS) are generated using data compiled from various third-party providers. This full data includes information submitted by employers, medical schemes, banks, insurers, retirement funds, and other third-party providers. The data utilized for these assessments can encompass various key documents such as IRP5 certificates, medical aid certificates, retirement annuity certificates, and investment income certificates. This reliance on external data shows the importance of taxpayer vigilance.

For the 2026 filing season, SARS has introduced significant enhancements to its auto-assessment process. These improvements include the pre-filling of investment income data, which aims to reduce manual input errors, and the implementation of a more simplified tax return for taxpayers, making the process more user-friendly. If a taxpayer identifies inaccuracies in the third-party data used for their auto-assessment, SARS typically requires the relevant provider to correct and resubmit the erroneous information directly to the revenue service. This ensures that the foundational data for the assessment is accurate before further processing.

Key Areas for Verification

Income or deductions are not always reflected correctly in auto-assessments and therefore require diligent taxpayer scrutiny. These often include freelance work, side-hustle income, rental income, and foreign income, which may not be automatically reported to SARS by third parties. Additionally, specific deductions such as Section 18A donations, qualifying out-of-pocket medical expenses, home-office expenses, business travel claims, and direct retirement annuity contributions may be inaccurately represented or entirely omitted, according to financial analysts. Missing deductions can lead to taxpayers paying more tax than required or forfeiting a potential refund they are rightfully due.

Taxpayers should specifically review retirement annuity contributions, ensuring all payments have been captured correctly, and qualifying medical expenses, especially those paid directly by the taxpayer. Travel allowances and business travel claims also warrant close inspection, as these can be complex. Rental income and its associated expenses, as well as interest and other investment income, must be accurately declared and verified. Changes in tax residency and any freelance income must be accurately declared, as these significantly impact tax obligations. Taxpayers must verify that there are no employer payroll errors impacting their assessment, which can range from incorrect income figures to misclassified deductions.

Missing income in an auto-assessment can result in an under-declaration of taxable earnings, potentially leading to queries and investigations from the South African Revenue Service (SARS). Such discrepancies necessitate prompt correction by the taxpayer to avoid compliance issues and potential penalties. It is key to remember that SARS auto-assessments are based on the data the revenue service receives; if income or deductions are not included in this data, the taxpayer bears the responsibility to correct the assessment.

SARS automatically processes refunds of R100 or more within 72 hours, provided there are no banking, compliance, or verification issues. This automated payment system relies heavily on the accuracy of the taxpayer's initial assessment and their banking details on file with SARS, noting the importance of correct information from the outset.

Filing Deadlines and Triggers

Taxpayers who are not auto-assessed by the South African Revenue Service (SARS), or who disagree with their auto-assessment, can file their returns from July 13. The deadline for non-provisional individual taxpayers is October 23, while provisional taxpayers must submit their returns by January 22, 2027. Seemingly minor financial events, such as a savings or two-pot withdrawal, can trigger filing obligations for individuals, even if they typically do not file. Having more than one IRP5 generally makes filing a tax return compulsory. Other common filing triggers include bank interest exceeding the annual exemption, capital gains above R2.5-million, foreign dividends, or rental income. Provisional tax is typically required for self-employed individuals or those with multiple income sources. Individuals with normal employment income and more than R30,000 in other taxable income may also need to register as provisional taxpayers, ensuring they meet their obligations throughout the tax year.

Expert Advice and Warnings

SARS auto-assessments rely on data received by the revenue service; if income or deductions are not included in this received data, the taxpayer must proactively correct the assessment to ensure accuracy. Failure to respond to an auto-assessment is considered agreement, and the assessment will stand as issued, which can have significant financial implications if it is incorrect. Missing deductions can lead to taxpayers paying more tax than required or forfeiting a potential refund, directly impacting their financial well-being. For the 2026 tax year, the tax threshold for individuals under 65 is R95,750, meaning individuals earning below this amount are not liable for income tax. Additionally, two-pot retirement withdrawals are taxed at marginal rates, which can potentially push taxpayers into a higher tax bracket, increasing their overall tax liability for the year. This shows the need for careful financial planning and review of all income streams.