Missed the 23 October tax deadline? What auto-assessment can miss, and what to do now
Non-provisional returns were due on 23 October 2026; out-of-pocket medical costs that never reached your medical scheme are one gap auto-assessment can miss - worth about R2 132 in our worked example.
In 30 seconds
- The non-provisional deadline was 23 October 2026 - provisional taxpayers still have until 22 January 2027.
- Auto-assessment only sees what third parties report - in our example, R20 000 of medical costs paid outside the scheme was worth a R2 132 credit it would not have counted.
- A late return can draw a fixed penalty of R250 to R16 000 a month, depending on taxable income - R500 a month at R400 000.
Where the 2026 filing season stands
SARS ran auto-assessments from 1 to 12 July 2026. The window for non-provisional taxpayers - most salaried employees - ran from 13 July to 23 October 2026. That same date was the last day to correct an auto-assessment by submitting an updated return. Provisional taxpayers have until 22 January 2027.
If you were auto-assessed and the numbers were right, you did not need to do anything. If you were not auto-assessed, or the assessment was wrong and you did nothing, read on.
What auto-assessment actually is
An auto-assessment is SARS filling in your return from data other people send it: your employer's IRP5, your medical scheme's tax certificate, your retirement annuity certificate and interest certificates from your bank. It is not a review of your whole tax position. Anything no third party reports is simply not there.
Four things it commonly misses
- Medical costs you paid yourself and never claimed from the scheme. The scheme certificate only lists what was submitted to the scheme. Pharmacy, specialist or dental bills paid in cash and never claimed are invisible.
- Travel allowance claims. If you receive a travel allowance, the deduction depends on your logbook. No third party sends SARS your logbook.
- Donations to approved organisations. A section 18A receipt only shows up if the organisation reported it.
- Income it does not know about. Rent, freelance work, foreign income or gains on shares and crypto you sold. This one works against you: missing income is still taxable, and leaving it out is your risk, not SARS's.
A worked example: the medical credit
Take someone under 65, with no disability, a taxable income of R400 000 and medical scheme contributions of R3 000 a month (R36 000 for the 2026 tax year), single member. They also paid R20 000 out of pocket for treatment the scheme did not cover and they never submitted.
- Monthly medical scheme fees credit: R364 a month for the main member, so R4 368 for the year.
- Contributions above four times that credit: R36 000 minus R17 472 = R18 528.
- Add the out-of-pocket costs: R18 528 + R20 000 = R38 528.
- Less 7.5% of taxable income: R38 528 minus R30 000 = R8 528.
- Additional medical expenses credit: 25% of that = R2 132 off the tax bill.
Without the R20 000, the same sum is R18 528 minus R30 000 - below zero, so no additional credit at all. The auto-assessment would have been R2 132 too high, and only the taxpayer could have known.
If you missed the deadline
- Not auto-assessed and not filed? File now on eFiling or the SARS MobiApp. The return is late, but filing stops a penalty from growing.
- Auto-assessed, and it was wrong? The updated-return route closed on 23 October. The remaining route is a dispute: a request for correction or an objection on eFiling, which has its own time limit counted from the assessment date.
- Provisional taxpayer? You are still inside your window to 22 January 2027. File before the holidays rather than after.
We could not confirm on a SARS page (checked 27 Oct 2026) how the objection time limit applies to a July 2026 auto-assessment, or exactly when a late individual return triggers the fixed penalty below. SARS's 2026 penalty notice (Notice 7314) covers trusts; for individuals, the trigger has historically been more than one outstanding return plus a final demand. Check eFiling or ask SARS before relying on either.
What a late return can cost
The Tax Administration Act sets a fixed monthly penalty by taxable income for listed non-compliance, charged for each month it continues:
| Taxable income | Penalty per month |
|---|---|
| Assessed loss to R250 000 | R250 |
| R250 001 - R500 000 | R500 |
| R500 001 - R1 000 000 | R1 000 |
| R1 000 001 - R5 000 000 | R2 000 |
| R5 000 001 - R10 000 000 | R4 000 |
| R10 000 001 - R50 000 000 | R8 000 |
| Above R50 000 000 | R16 000 |
For the person in our example, at R400 000, that is R500 for every month the return stays outstanding once the penalty applies. A missed medical credit of R2 132 is worth four months of it.
Next year, in one list
- Keep receipts for medical costs you pay yourself, even small ones - or submit them to the scheme so they land on its certificate.
- Open the auto-assessment in July rather than accepting it unread.
- Diarise the deadline. For non-provisional taxpayers in 2026 it was 23 October.
How MaxWealth helps
The income tax tool works out your tax from your own salary and includes medical scheme credits and a retirement annuity slider, so you can see what your return should roughly come to before you accept an assessment.
Sources
- 2026 filing dates (auto-assessment 1-12 July, non-provisional 13 July-23 October 2026, provisional to 22 January 2027) and the updated-return route: SARS - Filing season.
- Medical scheme fees credit of R364 a month for 2026 and the additional medical expenses credit rules (25%, 7.5% of taxable income, four times the credit): SARS - Medical tax credit rates. Worked example: our own calculation.
- Fixed amount penalty table: Tax Administration Act 28 of 2011, section 211; 2026 incidences of non-compliance: SARS - Notice 7314, GG 54417 (27 March 2026).
Education, not financial advice. This post explains how the rules and the arithmetic work. It does not recommend any financial product, and your own situation may differ - speak to a registered financial adviser or tax practitioner before you act. Figures were checked against the linked sources on the date above.