Understanding the SARS Auto-Assessment Window

Every July, thousands of South African taxpayers receive a message from SARS that catches them slightly off guard. It is the auto-assessment, and while it is designed to make your life easier, it pays to know exactly what it means before you let it sail past.

What is an auto-assessment?

An auto-assessment is SARS doing the first leg of the work for you. Using information gathered from third parties such as your employer, your bank, medical schemes, and retirement fund administrators, SARS pulls together an estimate of your tax position and sends it to you. For the 2026 filing season, these assessments are issued between 1 and 12 July.

If you are auto-assessed, you will receive a notification by SMS or email directing you to eFiling or the SARS MobiApp to view the outcome. You are not required to file a separate return if you agree with what you see.

Do not just accept it blindly

Here is where many taxpayers drift off course. An auto-assessment is only as accurate as the information SARS received. If a deduction is missing, if you earned income that was not reported by a third party, or if your medical or retirement contributions are not fully reflected, the assessment may not tell the whole story.

Take a moment to check the detail. Compare it against your own records, your IRP5, medical certificates, and any investment or rental income. A few minutes of review can be the difference between an accurate outcome and an avoidable headache later.

What if you agree, or disagree?

If everything looks correct, there is nothing more to do. You do not even need to formally accept the assessment. If a refund is due and your banking details are in order, SARS pays it automatically, usually within 72 hours. Any amount owing should be settled by the date shown on the assessment.

If something is wrong or incomplete, you can edit and submit a corrected return. The window to do this runs alongside the broader filing season, with non-provisional taxpayers having until 23 October 2026 to file, and provisional taxpayers until 22 January 2027.

When to call in a professional

If your tax affairs involve rental income, freelance earnings, capital gains, or anything beyond a single salary, an auto-assessment rarely captures the full picture. That is the moment to bring an experienced hand on deck before you confirm anything.

At TLT Accountants we help you read the fine print, claim what is rightfully yours, and file with confidence. Reach us at tltsa.co.za or visit us at Lynnwood Bridge, Pretoria.