Quick Excluding VAT Calculator
Use this tool to remove VAT from a total amount that already includes VAT.
What Does “Excluding VAT” Mean?
“Excluding VAT” means the base price of a product or service before Value Added Tax is applied. In many countries, displayed consumer prices include VAT by default, but businesses often need to know the tax-free value for accounting, bookkeeping, and reporting.
For example, if an invoice total is 120.00 and the VAT rate is 20%, the amount excluding VAT is 100.00 and the VAT portion is 20.00.
How to Calculate Excluding VAT
If you already have the VAT-inclusive total, you do not subtract the percentage directly. Instead, divide by the VAT multiplier.
Core Formula
Excluding VAT = Including VAT ÷ (1 + VAT Rate/100)
VAT Amount = Including VAT − Excluding VAT
Example Calculation
- Including VAT amount: 240.00
- VAT rate: 20%
- Excluding VAT = 240.00 ÷ 1.20 = 200.00
- VAT amount = 240.00 − 200.00 = 40.00
Why This Matters for Business
Knowing the excluding VAT amount helps you keep clean financial records and avoid confusion when comparing costs, margins, and taxes. This is especially useful for:
- Preparing VAT returns
- Checking supplier invoices
- Reconciling accounting software entries
- Building accurate pricing models
- Comparing B2B quotes fairly
Common Mistakes People Make
1) Subtracting VAT percentage directly
At 20% VAT, some users do 120 − 20% = 96.00. That is incorrect for reversing VAT. The right answer is 100.00 because 120 already includes VAT.
2) Using the wrong VAT rate
Different goods and services can have different rates (standard, reduced, zero-rated). Always confirm the applicable rate before calculating.
3) Ignoring rounding rules
Most invoices round to 2 decimal places, but accounting systems may handle line-level and invoice-level rounding differently. Always follow your local tax authority and accounting policy.
Helpful VAT Reverse Calculation Table
- 5% VAT: divide inclusive amount by 1.05
- 10% VAT: divide inclusive amount by 1.10
- 20% VAT: divide inclusive amount by 1.20
- 25% VAT: divide inclusive amount by 1.25
Frequently Asked Questions
Can I use this for sales tax too?
Yes, mathematically it works the same way for reversing a tax-inclusive amount, though legal naming and rules differ by country.
Is this calculator suitable for official tax filing?
It is a practical estimate and checking tool. For filing, always confirm values against official invoices, your accounting system, and local tax regulations.
What if my amount has no VAT included?
Then no reverse VAT is needed. The excluding VAT amount equals the original amount.
Final Tip
Keep this excluding VAT calculator bookmarked for quick invoice checks. It saves time, reduces manual errors, and helps you stay confident when reviewing tax-inclusive prices.