How to Calculate VAT in South Africa (2026 Guide)

Updated April 2026 | Written by Sarah van der Merwe CA(SA)

South Africa's standard VAT rate is 15%. This guide explains how to calculate VAT in South Africa step by step, with worked examples in Rand. We cover adding VAT, removing VAT, reverse VAT, and Excel formulas. Use our free VAT Calculator to skip the maths entirely.

How to Add VAT in South Africa

The Add VAT Formula

Total = Amount × 1.15

This is the standard formula to add VAT. The 1.15 multiplier represents 100% of the price plus 15% VAT. Using this formula guarantees a highly accurate result.

Step by Step — Adding VAT

1. Take your original price before VAT.
2. Multiply by 1.15 (which adds 15%).
3. The result is your VAT inclusive price.

Worked Example — Adding VAT

Example: Invoice for R2,500 before VAT

Calculation: R2,500 × 1.15 = R2,875

VAT amount: R2,875 − R2,500 = R375

You start with a base value of R2,500. By multiplying it by 1.15, you add the 15% VAT correctly. The final invoice amount is R2,875.

How to Remove VAT in South Africa

The Remove VAT Formula

Amount excl VAT = Total ÷ 1.15

This formula works in reverse to find the original amount. Dividing by 1.15 safely unbundles the 15% tax. Do not multiply by 0.85, as that gives the wrong answer.

Step by Step — Removing VAT

1. Take the total amount that includes VAT.
2. Divide that total amount by 1.15.
3. The result is the price before VAT.

Worked Example — Removing VAT

Example: Receipt shows R3,450 including VAT

Calculation: R3,450 ÷ 1.15 = R3,000

VAT amount: R3,450 − R3,000 = R450

The total receipt value is R3,450. You divide this amount by 1.15 to strip away the tax. The price excluding VAT is precisely R3,000.

How to Calculate VAT in Excel

Excel Formula to Add VAT

=A1*1.15

Type this formula into any blank cell. It references your original amount in cell A1. The result will instantly include the 15% VAT. This works perfectly for fast invoicing.

Excel Formula to Remove VAT

=A1/1.15

Place this formula in an adjacent cell. It takes the total VAT inclusive amount in cell A1. The formula removes the tax and shows the bare price.

Excel Formula for VAT Amount Only

=A1*0.15

Use this if you only need the tax portion. It calculates 15% of the base amount in cell A1. The result displays the specific VAT paid or charged.

VAT Registration in South Africa

When Must You Register for VAT?

• Turnover exceeds R1 million in 12 months — compulsory registration.
• Turnover exceeds R50,000 — voluntary registration allowed.
• Must register within 21 days of crossing threshold.
• Late registration results in SARS penalties.

It is crucial to monitor your business turnover carefully. If you hit the R1 million mark, registration becomes mandatory. Voluntary registration can benefit businesses claiming large input VAT. Ignoring these rules invites severe legal and financial penalties.

Common VAT Mistakes to Avoid

1. Missing VAT Filing Deadlines

SARS sets strict deadlines for bi-monthly VAT returns. Filing your return late will automatically trigger financial penalties. You also risk accumulating interest on unpaid amounts. Always mark the 25th or the final business day on your calendar.

2. Misclassifying Zero-Rated Items

Not all goods carry the standard 15% VAT rate. Basic foodstuffs like brown bread are zero-rated. Applying 15% to zero-rated goods throws off your entire tax return. Keep a clear list of what qualifies under SARS guidelines.

3. Not Claiming Input VAT

Businesses often forget to claim taxes paid on business expenses. Input VAT reduces the final amount owed to SARS. You must retain valid tax invoices for five years. Losing these invoices means you leave money on the table.

4. Incorrect VAT Calculations

Many people incorrectly subtract 15% to find the exclusive price. The correct method is to always divide by 1.15. Mathematical errors result in underpaid tax or angry customers. Always double-check your numbers or use an online tool.

5. Poor Record Keeping

Tax records must be stored safely for five years. SARS officers can request an audit at any time. Clean, organized files make the entire review process simple. Sloppy paperwork creates huge headaches and invites deeper investigations.

Frequently Asked Questions

How do I calculate 15% VAT in South Africa?

Multiply the amount by 1.15 to add VAT. To find just the VAT amount, multiply by 0.15.

What is the formula to remove VAT?

Divide the total amount by 1.15. This gives you the original price exclusive of VAT.

How do I calculate VAT in Excel?

To add VAT, use =A1*1.15. To remove it, use =A1/1.15 in your spreadsheet.

When must I register for VAT?

Registration is mandatory when turnover exceeds R1 million annually. Voluntary registration starts at R50,000.

What is the difference between zero rated and VAT exempt?

Zero-rated items are taxable at 0%, allowing input VAT claims. Exempt items fall outside the VAT system entirely.

How often do I submit a VAT return?

Returns are usually submitted every two months. You can file these directly through SARS eFiling.

Save time on all your VAT calculations with our free SARS compliant VAT Calculator South Africa. You can also view our Import VAT Calculator if you are importing goods.

Sarah van der Merwe CA(SA)

Sarah is a CA(SA) with 12 years of experience. She specialises in VAT compliance for South African businesses. Her mission is to simplify complex tax rules for entrepreneurs.

Reviewer of calculations • Tax Specialist