Free VAT & GST Calculator
Add or remove VAT or GST, work back from a tax amount or find the rate. Includes editable standard-rate presets and multi-item totals split by rate.
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How to add or remove VAT and GST from a price
Add or remove VAT or GST, work back from a tax amount, find the rate from two prices or total a multi-rate invoice.
- Pick Add VAT, Remove VAT, From tax amount or Find the rate.
- Choose a country preset for its standard rate or type any rate. Check the rate with your tax authority before relying on it.
- Enter the amount and choose a currency. The net, tax and gross amounts update instantly.
- For an invoice, enter each item's unit price, quantity and rate, and say whether the prices are net or gross.
- Choose whether tax is rounded per line, then copy the summary or download the CSV with subtotals by rate.
When you need a VAT or GST calculator
Value-added taxes are charged in most countries, under names such as VAT, GST, IVA, TVA, MwSt and consumption tax. Shop owners and freelancers need to add the tax to a net price for a quote, take it out of a tax-inclusive receipt for their bookkeeping, and split an invoice with several rates into the subtotals a tax return asks for.
Shoppers use it too: to see how much tax is inside a price, to compare prices quoted with and without tax, or to work out the refund on goods exported by a traveller. The Find the rate mode answers a different question: given a net and a gross price, what rate was applied?
Worked examples with real numbers
Adding tax: 100 net at Germany's 19% standard rate gives 19 of VAT and a gross price of 119. Removing tax: a UK price of 120 including 20% VAT contains 120 ÷ 1.20 = 100 net and 20 of VAT. A New Zealand price of 250 including 15% GST contains 217.39 net and 32.61 GST. Adding Swiss VAT at 8.1% to 80 gives 6.48 of tax and 86.48 gross.
Working back from the tax: if an Irish receipt shows 46 of VAT at 23%, the net price was 46 ÷ 0.23 = 200 and the gross 246. Finding the rate: a net price of 100 that becomes 123 implies a 23% rate.
Invoice with mixed rates: two items at 49.90 net at 19% and one at 12.50 net at a 7% rate. With tax rounded per line, the 19% subtotal is 99.80 net plus 18.96 VAT, the 7% subtotal is 12.50 net plus 0.88 VAT, and the invoice totals 112.30 net, 19.84 VAT and 132.14 gross.
How the calculations work
Adding tax multiplies the net amount by the rate: tax = net × rate, gross = net + tax. Removing tax divides: net = gross ÷ (1 + rate). From a tax amount, net = tax ÷ rate. The implied rate is gross ÷ net − 1. Rates are stored as percentages, so 8.1% is used as 0.081.
In the multi-item panel each line is unit price × quantity. Tax is calculated per line and, if Round tax on each line is ticked, rounded to the currency's usual decimals (none for yen or won, two for most currencies) before totals are added. Lines are then grouped by rate so you see the net, tax and gross amount for each rate, plus the grand total.
The preset list contains only standard rates we are confident of, such as 20% in the UK and France, 19% in Germany, 21% in Spain and the Netherlands, 22% in Italy, 23% in Ireland, Poland and mainland Portugal, 25% in Sweden, Denmark and Norway, 10% GST in Australia, 15% in New Zealand and South Africa, 9% in Singapore, 16% IVA in Mexico, 5% in the UAE, 15% in Saudi Arabia, 8.1% in Switzerland, 10% in Japan and South Korea, and the 5% federal GST in Canada. Rates change, so always confirm the current one.
Common mistakes to avoid
Subtracting the rate from a gross price is the most frequent error: 20% off 120 is 96, but the real net price is 100. The second is assuming the standard rate applies to everything. Food, children's clothing, books, medicines, hotel stays and public transport often use reduced or zero rates, and some regions add their own tax, as with provincial sales tax and HST in Canada.
Rounding can also cause small differences between your figures and an invoice. Some countries require tax to be rounded per line, others on the invoice total. Toggle the rounding option to match the invoice you are checking.
Useful tips and limitations
- To remove VAT, divide by 1 plus the rate. Subtracting the rate percentage from a gross price understates the net price.
- Presets cover standard rates only. Food, books, transport and other goods often have reduced or zero rates.
- Download the CSV to paste per-rate subtotals straight into a spreadsheet or bookkeeping tool.
- Add new items after setting the preset; each new row starts at the currently selected rate.
Common questions
How do I remove VAT from a price?
Divide the gross price by 1 + the rate. At 20%, 120 ÷ 1.20 = 100 net, so the VAT is 20. Taking 20% off 120 would wrongly give 96.
Are the preset VAT and GST rates always current?
They are the standard rates we are confident of for each listed country, but governments change rates. A visible note asks you to check the current rate, and every rate can be edited.
How is this different from the Sales Tax Calculator?
This page is built for value-added taxes: reverse calculations, country presets and invoices with mixed rates. The Sales Tax Calculator handles discounts and stacked or compounding taxes on a purchase.
Why is the Canada preset only 5%?
It is the federal GST. Several provinces charge a harmonized sales tax (HST) instead, and others add a separate provincial sales tax, so type your combined rate when it applies.
Can the VAT & GST Calculator handle reduced rates?
Yes. Type any rate in the rate field or set a different rate on each invoice line. Presets only fill in the standard rate.
Does the VAT & GST Calculator file tax returns or check VAT numbers?
No. It only does the arithmetic in your browser. Use your tax authority's services for filing and number validation.
Everything you enter is calculated in your browser. Nothing is uploaded and no account is needed. Copy or download your results before leaving the page.