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ToolWrenAdd tax to a net price or remove tax from a gross price at any rate — handy for invoicing and bookkeeping.
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VAT is a free, private online tool that lets you add or remove VAT or sales tax from a price at any rate. It runs entirely in your browser, so nothing you enter is uploaded to a server.
Privacy: this tool runs entirely in your browser. Your input is never sent to, received by, or stored on any server — there are no uploads and no tracking of what you enter.
Adding tax goes from a net (pre-tax) price to gross. Removing tax goes from a gross (tax-inclusive) price back to net — useful when a receipt only shows the total.
Add: gross = net x (1 + rate). Remove: net = gross / (1 + rate). The tax is the difference.
Invoicing, expense claims and bookkeeping where you need to separate the tax portion of a price.
This tool adds tax to a price or removes tax from one, at any rate. Adding tax goes from a net (pre-tax) price to the gross (tax-inclusive) total. Removing tax goes the other way — extracting the net price and the tax portion from a gross figure, which is exactly what you need when a receipt only shows the total.
VAT (Value Added Tax, used across the UK, EU and much of the world) and US-style sales tax work differently behind the scenes — VAT is collected at each stage of the supply chain, sales tax only at the final sale — but the everyday arithmetic of adding or removing a percentage is identical, so this one tool handles both.
Adding tax: gross = net × (1 + rate). Removing tax is where people slip up: you must divide, not subtract. From a gross price, net = gross ÷ (1 + rate). For 20% VAT, you remove it by dividing by 1.2, not by taking 20% off — taking 20% off a gross figure gives the wrong answer because the 20% was calculated on the smaller net amount.
At a 20% rate: a £100 net price becomes £120 gross (100 × 1.2), with £20 tax. Going the other way, a £120 gross price contains £100 net (120 ÷ 1.2) and £20 tax. Notice that the tax is 20% of the net (£100) but only about 16.7% of the gross (£120) — which is why dividing is essential.
Invoicing and quoting with tax-inclusive or tax-exclusive prices, separating the tax portion for bookkeeping and expense claims, pricing products, and checking receipts. Enter any rate to match your region. Everything is calculated in your browser.