VAT / GST Calculator
Add or remove VAT/GST from a price, with real regional rate presets or a custom rate of your own.
Last updated
How to add or remove VAT
- Choose whether to add VAT/GST to a net price or remove it from a price that includes it.
- Enter the price, and pick your country or region (or type a rate).
- Read the VAT amount and the price with or without VAT.
About this tool
Adding tax: total = net × (1 + rate ÷ 100). Removing tax works backward from a tax-inclusive total: net = total ÷ (1 + rate ÷ 100), with the VAT/GST amount shown as its own line rather than folded into the total — useful when a receipt or invoice only shows the final price and you need to know how much of it was tax.
The region presets are real standard rates (not reduced or zero rates that apply to specific goods like food or books in many countries), current as of this tool's last update. Canada is listed by province since GST, HST, and PST combinations vary — pick the one that matches where the sale happens. Rates change over time and by product category, so treat these as a solid starting point rather than a final word for tax filing.
Your last-used rate is remembered in this browser. For a simpler single flat-rate calculator without regional presets, see the Sales Tax Calculator. Nothing you enter here is sent to a server — the whole tool runs as JavaScript in your browser tab.
Questions about VAT and GST
How do I add 20% VAT?
Multiply the net price by 1.2. £150 plus VAT is £180, of which £30 is VAT.
How do I remove VAT from a price?
Divide the price including VAT by 1 plus the rate. At 20%, £180 ÷ 1.2 = £150 before VAT, so the VAT was £30.
Why can’t I just take 20% off to remove VAT?
Because VAT was 20% of the lower, net price. 20% off £180 gives £144, not the correct £150. VAT is one sixth of a price that includes 20% VAT.
Are the regional rates up to date?
They’re the standard rates as of the last update. Reduced and zero rates for things like food and books aren’t included, so check official guidance for tax returns.