How to Handle SARS Requests for Supporting Documents: A Guide

To handle SARS requests for supporting documents during filing, you must upload clear, digital copies of all relevant financial records via eFiling or the SARS MobiApp within 21 business days. Ensure every document, such as tax invoices, travel logs, and bank statements, directly supports the figures claimed on your ITR12 or ITR14 return to avoid delays or audits. Successfully managing SARS supporting documents is the key to a smooth South African tax season, ensuring your refunds are processed quickly and your compliance remains flawless.

What are SARS supporting documents and why are they requested?

SARS supporting documents are the primary evidence used to verify the accuracy of the information provided in your tax return. When you submit a return, SARS uses an automated risk engine to determine if the data matches their third-party data or if certain claims require manual verification.

This request does not necessarily mean you have done something wrong. It is a standard procedure in the South African tax system to ensure the integrity of the tax base. For small business owners, this often triggers after claiming significant business expenses, home office deductions, or VAT refunds.

In the current 2026 tax environment, SARS has increased its reliance on artificial intelligence and data matching. This means that even small discrepancies between your declared income and bank movements can trigger a request for documents. Common items requested include IRP5 certificates, IT3(b) certificates for investment income, and detailed ledgers for business expenses.

How do you know if SARS needs supporting documents from you?

SARS will notify you of a request for supporting documents through an official letter issued via your eFiling profile or through an SMS and email notification. You should check the 'Correspondence' section on eFiling regularly after submitting your tax return to identify any 'Verification of Income Tax Return' notices.

Once you receive this notification, the status of your return on the eFiling dashboard will change to 'Requested for Supporting Documents'. It is critical to act immediately, as you typically have only 21 business days from the date of the letter to comply. Failure to submit these documents can lead to the disallowance of expenses, which results in a higher tax liability or the forfeiture of a refund.

What are the most common documents SARS will ask for?

The specific documents required depend on the nature of your filing, but for most South African SMEs and sole traders, the list is relatively predictable. SARS primarily wants to see the 'source documents' that justify the totals entered into your tax return fields.

For business income and expenses, you will likely need to provide:

• A detailed Statement of Comprehensive Income (Profit and Loss).

• A Statement of Financial Position (Balance Sheet).

• A trial balance for the full financial year (March to February).

• A fixed asset register if you are claiming depreciation or Section 12C allowances.

• Tax invoices for major expenses exceeding R7,000.

If you are a sole trader claiming travel expenses, a detailed logbook is non-negotiable. This logbook must show the date of travel, opening and closing odometer readings, and the nature of the business trip. Without a valid logbook, SARS will routinely disallow travel claims, leading to significant back-tax assessments.

What documents are needed for home office claims?

As of February 2026, SARS maintains strict criteria for home office deductions. If you are claiming for a home office, you must provide a floor plan of your home showing the area used exclusively for trade. You will also need to submit a calculation showing the percentage of the total home area that the office occupies, along with invoices for rates, taxes, electricity, and bond interest or rent.

What documents are needed for VAT verification?

If your business is VAT-registered and you have claimed a refund, a verification is almost certain. You will need to provide a VAT sub-total report and a sample of high-value input tax invoices. Ensure these invoices meet the formal requirements of the VAT Act, including the vendor’s VAT number and your business’s registered details.

How to submit SARS supporting documents via eFiling?

You submit SARS supporting documents by logging into your eFiling profile, navigating to the specific tax return under the 'Returns Issued' tab, and selecting 'Upload Supporting Documents'. You must ensure that all files are in an acceptable format, such as PDF, JPG, or PNG, and that no single file exceeds 5MB.

When uploading, group related documents together. For example, merge all your medical aid certificates into one PDF and all your business invoices into another. This makes the job easier for the SARS auditor and reduces the risk of documents being overlooked.

Once you have uploaded all the files, you must click the 'Submit to SARS' button. Simply uploading them to the folder is not enough; the status must change to 'Submitted' for the process to be complete. Always save a copy of the transmission receipt for your records.

What are the file requirements for SARS uploads?

SARS has specific technical requirements to ensure their systems can process your submission. Files must not be password-protected or encrypted. The total size of all files combined should ideally stay under 20MB, although individual files have a 5MB limit.

Ensure that the documents are high-quality scans. If an auditor cannot read the date or the amount on an invoice, they will likely reject the document and issue a 'Revised Assessment' that ignores that specific expense. Use a dedicated scanning app or a professional scanner rather than a low-light photo from a smartphone.

What happens after you submit your documents?

After you submit your SARS supporting documents, the revenue service has 21 business days to review the information. During this time, the status on eFiling will stay as 'Received' or 'In Progress'. In many cases, the verification is concluded quickly, and you will receive a 'Notice of Assessment' (ITA34) that matches your original submission.

However, if the auditor finds discrepancies, one of two things will happen. They may issue an 'Additional Assessment' where they adjust your figures based on the evidence provided (or lack thereof). Alternatively, they may escalate the verification to a full audit. A full audit is a more intensive process and can take up to 90 business days or longer to resolve.

How to avoid common mistakes with SARS documentation?

The most common mistake small business owners make is submitting incomplete records. If you claim R100,000 in ‘Consulting Fees’ but only provide invoices for R60,000, SARS will likely disallow the remaining R40,000.

Another frequent error is submitting documents that do not belong to the correct tax year. For the February 2026 year-end, only documents dated between 1 March 2025 and 28 February 2026 are relevant. Submitting an invoice from January 2025 will result in its rejection.

Consistency is also vital. Ensure that the name of the entity on your invoices matches the name of the entity registered for tax. If you are a sole trader, invoices should be in your personal name. If you operate as a PTY Ltd, they must be in the company name.

Why record-keeping is the best defense against SARS audits?

The best way to manage a request for SARS supporting documents is to be prepared before the request even arrives. Under South African law, specifically the Tax Administration Act, you are required to keep all financial records for a minimum of five years from the date of submission.

For small business owners, this means maintaining a digital archive of every receipt, invoice, and bank statement. Waiting until tax season to go through a 'shoe box' of receipts is a recipe for disaster. By the time SARS asks for proof, you should be able to generate a zip folder of the required evidence in minutes.

Modern cloud accounting solutions make this process effortless. By capturing expenses as they happen throughout the year, you ensure that your SARS supporting documents are always organized, accurate, and ready for submission.

How to handle a SARS request for 'Relevant Material'?

Sometimes SARS uses the phrase 'request for relevant material' instead of 'supporting documents'. Don't let the terminology confuse you; it is effectively the same thing. It is an information request under Section 46 of the Tax Administration Act.

You are legally obligated to provide this material. If you genuinely do not have a specific document, you must provide a detailed explanation and, if possible, an alternative proof of the transaction (such as a bank statement and an affidavit). However, affidavits are usually a last resort and are not guaranteed to be accepted for VAT input claims.

When should you seek professional help?

While many small business owners handle simple verifications themselves, you should seek professional help if the request involves complex matters like Capital Gains Tax, international income, or if SARS has issued an additional assessment that you disagree with.

If you receive a 'Letter of Findings' after your submission, this is your opportunity to argue your case before a final assessment is made. A professional tax practitioner or an automated compliance platform can help you draft a response that uses the correct legal framework to protect your business's interests.

Managing your business finances doesn't have to be a source of stress during tax season. Using a robust platform for your bookkeeping ensures that you are never caught off guard when SARS comes knocking. When your books are balanced and your digital filing cabinet is organized, a request for SARS supporting documents becomes just another quick task on your to-do list.

Smartbook is designed specifically for South African small businesses and sole traders who need to stay compliant without the complexity of traditional accounting software. With Smartbook, you can track your income, manage your expenses, and ensure that all your records are in perfect order for the South African tax year. Our platform simplifies the way you prepare for filing, making it easier than ever to submit your SARS supporting documents with confidence. Let Smartbook handle the heavy lifting so you can focus on growing your business while staying on the right side of the revenue service.