Whether you're pricing a product, checking a receipt or filling in an invoice, you often need to add tax to a price or take it back out. This free sales tax and VAT calculator does both. Enter an amount, choose whether it's the price before tax (net) or after tax (gross), pick a rate, and you'll see the net price, the tax amount and the gross total instantly. Removing tax is where most people slip up: you can't just subtract 20% from a VAT-inclusive price; you have to divide by 1.2, and the calculator does that correctly and shows the formula. Quick presets cover the standard rates our readers use most: UK VAT (20%, plus the 5% reduced rate), German Mehrwertsteuer (19% and the 7% reduced rate), Australian GST (10%), Canadian GST (5%) and HST in Ontario (13%) and the Atlantic provinces (15%). US sales tax has no national rate and varies by state, county and city, often landing somewhere around 5% to 10% combined, so type your local rate into the custom box. Rates are set by governments and can change, so confirm the current figure for business use. The tool runs entirely in your browser and stores nothing.
Add or remove tax
How to use the tax calculator
- Enter the amount and say whether it already includes tax.
- Pick a preset or type your rate.
- Read the net, tax and gross amounts.
Formulas
- Add tax: gross = net × (1 + rate/100)
- Remove tax: net = gross ÷ (1 + rate/100)
- Tax inside a gross price: gross − net, e.g. 1/6 of a UK price at 20% VAT
FAQ
How do I remove 20% VAT from a price?
Divide by 1.2. £120 including VAT is £100 net plus £20 VAT. Subtracting 20% (£24) is wrong.
What is the US sales tax rate?
There’s no federal sales tax. States, counties and cities set their own, and a few states have none. Check your state revenue department for the combined local rate.
Is VAT the same as sales tax?
Both are consumption taxes, but VAT is charged at each stage of the supply chain and usually shown in the price, while US sales tax is added at the till.
Are the preset rates current?
They’re the standard rates as of late 2026. Governments can change rates, so confirm before filing or invoicing.
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