VAT registration in South Africa: when you must, when you may

VAT registration is one of the few tax questions with a hard, dated answer — and one of the most commonly missed, because the test doesn't work the way most people assume.

There are two doors in: you MUST register when your taxable turnover crosses the threshold, and you MAY register voluntarily below it. Both have consequences worth understanding before you're standing in either doorway.

The compulsory threshold — and the date it changes

Registration is compulsory when the total value of your taxable supplies exceeds R1 million in any consecutive 12-month period — or when there are reasonable grounds to believe it will exceed that in the coming 12 months (a signed contract can trigger it before a single invoice is paid). That R1 million threshold applies up to 31 March 2026. From 1 April 2026 the compulsory threshold rises to R2.3 million. Both numbers are true — on either side of that date — so check which regime the period you're testing falls into: a business between the two figures is compelled in before the change and no longer compelled after it.

“Any consecutive 12 months” is not your financial year

This is the part that catches people. The test is a rolling window: ANY 12 consecutive calendar months, ending on any month, not your February year-end and not the tax year. Suppose you invoice R70,000 a month from January, then land a R400,000 project in October. Calendar-year turnover: R1.24 million — but under the R1 million regime the rolling test tripped earlier than 31 December, the moment the trailing 12 months first exceeded the threshold. You have 21 days from that moment to apply. A business that only checks turnover at year-end can be months late without ever noticing.

Late registration is expensive in a particular way: SARS can register you back to the date you should have registered, and the VAT on everything you invoiced since is owed by you — you can't retroactively add 15% to invoices your customers already paid.

Voluntary registration: when you may

You may register voluntarily once taxable supplies exceed R50,000 in a 12-month period. Why volunteer for admin? Because registration lets you claim input VAT on what you buy. A business spending heavily on stock or equipment, or one selling mainly to VAT-registered customers (who don't care about the 15% because they claim it back), often comes out ahead. A business selling to the public — who do care, because to them 15% is just a price increase — often doesn't.

• •Register voluntarily if: your customers are mostly VAT vendors, your inputs carry meaningful VAT, or you want the standing that a VAT number signals to corporate customers.
• •Think twice if: your customers are the public, your margins are thin, or your admin is already behind — a VAT201 every period is a real obligation, not a formality.

Botswana differs

In Botswana the compulsory VAT registration threshold is P1 million in a 12-month period, administered by BURS, and the standard rate is 14% — not 15%. The rolling-12-months logic works the same way. If you trade in both countries, the two registrations are entirely separate: a SARS VAT number means nothing to BURS and vice versa.

How Ledgr helps you see it coming

Because Ledgr keeps your invoicing in one place, the rolling 12-month figure is always visible — you watch yourself approach the threshold instead of discovering it in arrears. And in keeping with how we build everything: Ledgr will warn you when the numbers say you're near the line, but it never blocks you. Your filings are yours; we make sure you can see what you're deciding.

Once you're registered, every invoice you issue has to meet the requirements of a valid tax invoice — see what makes a tax invoice valid.