South Africa · Salary, Tax & Money
South African VAT Calculator
Enter a different rate
Enter an amount, say whether VAT is already included, and the calculator separates the net, the VAT and the gross — the three figures a valid tax invoice has to show.
How is VAT calculated in South Africa?
To add VAT, multiply the price excluding VAT by one plus the rate as a decimal. To remove VAT from a VAT-inclusive price, divide by that same figure rather than subtracting the percentage. Subtracting the rate from the inclusive amount removes too much, because the VAT was calculated on the smaller exclusive figure.
How to use this calculator
- Enter the amount you haveA quoted price, a line on a supplier invoice, or a till total. What matters is knowing which of those it is.
- Say whether VAT is already in itRetail prices in South Africa are advertised inclusive of VAT. Trade and business-to-business quotes are frequently exclusive. Getting the direction wrong changes the answer by more than the rate does.
- Check the rateThe standard rate is set by SARS. Zero-rated supplies — most basic foodstuffs, exports, certain fuels — carry VAT at 0%, which is not the same as being exempt.
- Read the three figuresNet, VAT and gross are shown separately, because a valid tax invoice has to state each of them.
How the calculation works
Adding VAT is straightforward: multiply the exclusive price by one plus the rate. At 15%, R1,000 becomes R1,150, of which R150 is VAT.
Removing it is where invoices go wrong, and the error is always in the same direction. VAT was charged on the smaller exclusive figure, so taking the rate off the larger inclusive figure removes too much. R1,150 less 15% is R977.50 — R22.50 short of the true exclusive amount. The correct operation is division: R1,150 ÷ 1.15 = R1,000 exactly.
The shortcut some bookkeepers use is to multiply the inclusive amount by 15/115 to get the VAT directly. That is the same arithmetic rearranged and gives the same answer, and it is worth knowing because it is faster mentally: roughly one-eighth of the inclusive price is VAT at a 15% rate.
exclusive = inclusive ÷ 1.15 (at 15%) — never inclusive × 0.85Worked example: reconciling an invoice
A supplier invoice shows a total of R23,000 including VAT and you need the exclusive figure for your accounts.
Divide R23,000 by 1.15 to get R20,000. The VAT element is the difference, R3,000. Checking with the shortcut: R23,000 × 15 ÷ 115 = R3,000. The two agree.
Now do it wrong. Subtracting 15% from R23,000 gives R19,550, and implies VAT of R3,450. That is R450 of overstated input tax on a single invoice — a figure large enough to matter on a VAT201 return and exactly the sort of error a SARS audit picks up quickly.
The error scales with the amount, and because it always runs the same way it accumulates rather than averaging out.
Zero-rated, exempt, and why the difference matters
| Category | VAT charged | Input tax claimable |
|---|---|---|
| Standard-rated supplies | At the standard rate | Yes |
| Zero-rated supplies | At 0% | Yes — this is the key difference |
| Exempt supplies | None | No |
| Out of scope | None | Not applicable |
Zero-rated and exempt look identical on a customer's receipt and are completely different for the supplier. A zero-rated supply is still a taxable supply, so the business can reclaim the VAT on its own costs. An exempt supply is not, so the input tax becomes a cost. Businesses making a mix of both have to apportion their input tax, which is where VAT accounting gets genuinely complicated.
Registration and the mechanics
VAT registration in South Africa becomes compulsory once taxable supplies exceed a threshold set by SARS over a twelve-month period, and voluntary registration is available below it. Registering voluntarily often makes sense when your customers are themselves registered, because they reclaim whatever you charge and you reclaim whatever you are charged.
Once registered, VAT stops being a cost and becomes a flow. You collect output tax on sales, deduct input tax on purchases, and pay the difference over on your VAT201 return. That is why the exclusive figure — not the inclusive one — is what belongs in your accounts as income and expense.
A valid tax invoice has specific requirements: the words tax invoice, the supplier's name, address and VAT number, an invoice number and date, a description of the goods or services, and the amount separated into value, VAT and total. An invoice missing any of those may not support an input tax claim, which is a much more common practical problem than the arithmetic.
For consumers, none of this applies — the inclusive figure is simply the price. The VAT line exists so you can see how much of it is tax, and prices advertised to the public are required to be VAT-inclusive.
Assumptions and limitations
- Applies a single rate to the amount entered — a mixed-rate invoice needs each line calculated separately
- Rounding is to two decimal places, which can differ by a cent from an accounting system rounding per line
- Takes no view on whether a supply is standard-rated, zero-rated or exempt
- Does not handle apportionment of input tax for businesses making mixed supplies
- Does not address registration thresholds or whether you should be charging VAT at all
- Not a substitute for advice on a specific transaction or a VAT201 return
Questions people ask about this in South Africa
How do I calculate VAT in South Africa?
To add VAT, multiply the exclusive price by one plus the rate — at 15%, multiply by 1.15. To remove it, divide the inclusive price by 1.15 rather than subtracting 15%.
A quick check: at a 15% rate, the VAT element is 15/115 of the inclusive price, which is roughly one-eighth.
Why can't I just subtract 15% to remove VAT?
Because the 15% was applied to the smaller exclusive figure. Subtracting it from the larger inclusive figure removes too much. On R1,150 the correct exclusive amount is R1,000, found by dividing by 1.15; subtracting 15% gives R977.50, understating the net by R22.50.
What is the difference between zero-rated and VAT exempt?
A zero-rated supply is taxable at 0%, so the supplier can still reclaim input tax on its costs. An exempt supply is outside the VAT system, so no input tax can be reclaimed and it becomes a cost. They look identical on a receipt and are very different for the business.
Do I have to register for VAT?
Registration becomes compulsory once taxable supplies exceed the threshold SARS sets over a twelve-month period. Voluntary registration is available below it and is often worthwhile when your customers are VAT-registered, since they reclaim what you charge them.
What must a valid tax invoice show?
The words tax invoice, the supplier's name, address and VAT registration number, a serial number and date, a description of what was supplied, and the amount broken into value, VAT and total. An invoice missing any of these may not support an input tax claim.
Are advertised prices in South Africa VAT-inclusive?
Prices advertised to the public must be VAT-inclusive, so the shelf price is what you pay. Business-to-business quotes are frequently stated exclusive of VAT, which is why checking the direction before doing the arithmetic matters more than the arithmetic itself.
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Method, source and review date
- How it is worked out
- Standard VAT arithmetic at the rate published by SARS
- Formula used
inclusive = exclusive × (1 + rate) · exclusive = inclusive ÷ (1 + rate)- Checked against
- SARS
- Rates last verified
- Confidence
- Medium
The VAT rate is set by SARS and has been the subject of proposed changes in recent budgets. Confirm the current rate against SARS before invoicing, and use the custom rate field if it has moved.
Spotted a figure that has moved, or a formula you can show is wrong? Tell us — send a correction. Fixes to rates and formulas are treated as urgent.
Disclaimer
This is an estimate only and not tax advice. Tax depends on your full circumstances, and the rules change. Confirm anything that affects a return or a payment with a qualified tax adviser or the tax authority named above.