When SARS issues a verification request you generally have 21 business days to upload supporting documents through eFiling. Upload everything in one complete submission, with clearly named files, rather than in instalments. A partial or disorganised response is the most common reason a routine verification escalates into a full audit.
A verification is not an accusation. It is SARS checking that the numbers on a return are supported by documents. Handled properly it closes in weeks. Handled badly it becomes an audit, and audits have a different character entirely.
TL;DR
Deadline: generally 21 business days from the date of the letter.
Upload once, complete. Not in pieces.
Name files clearly so a reviewer can find things without asking.
Do not send more than is asked for. Volume is not thoroughness.
Do not miss the deadline. SARS can assess on the information it has.
If you need longer, request an extension before the deadline, not after.
Verification vs audit: what you are actually in
| Verification | Audit | |
|---|---|---|
| What it is | A check that declared figures are supported by documents | A detailed examination of your affairs |
| Scope | Usually one return, one period, specific items | Broader — multiple periods and tax types |
| Duration | Weeks | Months |
| How it starts | A request for supporting documents | A formal notice of audit |
| Typical trigger | A refund, an unusual figure, a risk rule | Verification findings, third-party data mismatches, patterns |
The distinction matters for one specific reason: once SARS has issued an audit notice for a period, the Voluntary Disclosure Programme is no longer available for it. If you know there is an error in a return, the window to fix it on favourable terms is before that notice arrives, not after.
What triggers a verification
Most are automated risk rules, not personal attention.
Refunds. Any VAT refund, particularly a first one or an unusually large one, is close to an automatic verification.
Ratios that look wrong. Input VAT high relative to output. Expenses high relative to turnover. Margins that move sharply year on year.
Third-party data mismatches. SARS receives data from banks, medical schemes, retirement funds, employers and increasingly from crypto-asset service providers under the CARF reporting framework. Where your return does not match what a third party reported, it is flagged.
Round numbers. R60,000 of "sundries" invites a question that R58,432.17 of itemised costs does not.
Large or unusual once-off items. A significant capital gain, a large donation claim, a first-time allowance.
Being new. New registrations get more attention than established compliant taxpayers.
The seven-step response
1. Read the letter properly. It states which return and period, which items, what documents, and the deadline. Diarise the deadline immediately.
2. Work out exactly what is being asked. Verifications are usually specific. If the letter asks about three expense categories, that is what to address — not the whole return.
3. Gather the documents. See the checklists below.
4. Check each document is actually valid before you send it. For VAT verifications especially, an invoice that does not meet the tax invoice requirements will be disallowed. Better to find that now and ask the supplier for a corrected one than to have SARS find it.
5. Name the files so a stranger can navigate them.
Not: IMG_4471.jpg, scan001.pdf, doc.pdf
Instead: 01_Bank_statements_Mar2026-Aug2026.pdf, 02_Input_VAT_listing_202608.pdf, 03_Tax_invoices_over_R5000.pdf
The person reviewing has hundreds of cases. Making their job easy genuinely affects the outcome.
6. Upload everything at once through the eFiling Supporting Documents function. Complete submissions get resolved. Drip-fed ones get escalated.
7. Keep the submission acknowledgement, and keep a copy of exactly what you sent.
Document checklists
VAT verification
Input VAT listing reconciling to field 19 of the VAT201
Output VAT listing reconciling to the declared output
Valid tax invoices for the largest input claims
Bank statements for the period
Customs documentation for any imports
VAT264 declarations for second-hand goods bought from non-vendors
Explanations for any zero-rated or exempt supplies
Where VAT verifications fail: invoices missing the recipient's VAT number, missing supplier addresses, or descriptions like "services rendered". See what makes a valid tax invoice.
Income tax (ITR14) verification
Signed annual financial statements
Tax computation reconciling accounting profit to taxable income
Fixed asset register with wear and tear calculations
Invoices for significant expenses queried
Loan agreements and interest schedules
Capital gains calculations with supporting documents
Provisional tax payment confirmations
Payroll (EMP501) verification
Payroll reports for each month
EMP201s submitted and proof of payment
IRP5 and IT3(a) certificates
Employment contracts for staff queried
ETI calculation schedules with employee IDs and evidence of minimum wage compliance across the workforce
Personal (ITR12) verification
IRP5s
Medical scheme certificate and out-of-pocket expense schedule
Retirement annuity contribution certificates
Logbook, if a travel allowance is claimed
Section 18A certificates for donations
Rental income and expense schedules
The five mistakes that escalate a verification
1. Missing the deadline. SARS can raise an assessment based on the information it has, which usually means disallowing everything queried. Unwinding that requires an objection, which is far more work than the original upload.
2. Uploading in pieces. Three partial submissions over two weeks reads as disorganised and invites a broader look.
3. Sending everything you own. Four hundred pages when forty were asked for does not demonstrate thoroughness. It signals that you cannot identify what is relevant, and it increases the chance of something unrelated catching attention.
4. Sending documents you have not checked. If an invoice is defective, you are handing SARS the finding.
5. Arguing instead of documenting. A verification asks for documents. Explanations are useful as a covering note, but they do not replace the documents.
If you cannot meet the deadline
Request an extension before the deadline passes, through eFiling or the contact channel in the letter, with a specific reason and a date you can meet.
Reasonable requests made in advance are usually accommodated. A request made after the deadline, or a vague one with no proposed date, generally is not.
What happens after you submit
Accepted. SARS finalises the verification and the return stands. You receive a completion letter.
Partially accepted. SARS disallows certain items and issues a revised assessment showing the additional tax, plus interest at 10.25% per annum and possibly understatement penalties.
Escalated to audit. You receive a formal notice of audit and the scope widens.
If you disagree with a revised assessment, lodge a Notice of Objection within 80 business days, with written reasons and supporting documentation.
Frequently asked questions
How long do I have to respond to a SARS verification request? Generally 21 business days from the date of the letter. Diarise it immediately and request an extension before the deadline if you genuinely need one.
What is the difference between a SARS verification and an audit? A verification checks that specific declared figures are supported by documents, usually on one return and period, and takes weeks. An audit is a detailed examination across potentially multiple periods and tax types, and takes months. Importantly, once an audit notice is issued the Voluntary Disclosure Programme is no longer available for that period.
What documents does SARS want for a VAT verification? Typically the input VAT listing reconciling to field 19 of the VAT201, an output VAT listing, valid tax invoices for the largest claims, bank statements, customs documents for imports, and VAT264 declarations for second-hand goods acquired from non-vendors.
What happens if I miss the SARS deadline? SARS can raise an assessment based on the information available, which usually means disallowing the items queried. Reversing that requires a Notice of Objection within 80 business days, which is considerably more work than responding on time.
Should I send everything I have to be safe? No. Send what was asked for, complete and well organised. Excessive volume signals that you cannot identify what is relevant and increases the chance of unrelated items attracting attention.
Does a verification mean I have done something wrong? Not at all. Most are triggered by automated risk rules — a refund claimed, an unusual ratio, third-party data that does not match, or simply being a new registration. It is a document check, not an accusation.
Can I get more time to respond? Usually, if you ask before the deadline with a specific reason and a date you can meet. Requests made after the deadline are much less likely to be accommodated.
What if the invoices supporting my claim are defective? Ask the supplier for corrected invoices before submitting. Sending a defective invoice hands SARS the basis for disallowing the claim. If a supplier cannot or will not correct it and the amount is material, take advice before responding.
Records that make this a non-event
Businesses that handle verifications easily are not luckier. They simply keep source documents attached to transactions as they are processed, so producing a verification pack is a filter and an export rather than a fortnight of searching.
Smartbook processes and files supporting documents monthly, checks invoices against the SARS requirements as they arrive, and handles verification responses on your behalf.
Last reviewed: 26 July 2026. Written by the Smartbook team — SAIPA and SAICA accredited, SARS registered tax practitioners. Response periods stated in an individual SARS letter govern — always work to the date on your letter. General guidance, not advice on your circumstances.
Primary sources: SARS — What if I do not agree · SARS — Short Guide to the Tax Administration Act · SARS — Voluntary Disclosure Programme · SARS eFiling