Tax Calculator
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Work out tax-inclusive and tax-exclusive prices in seconds. Enter an amount and a tax rate, choose whether your amount already includes tax, and instantly see the net price, the tax, and the gross total with a clear breakdown. Everything runs in your browser — nothing is uploaded.
How to use
- Enter the amount.
- Choose whether it is tax-exclusive (add tax) or tax-inclusive (remove tax).
- Pick a preset tax rate or type your own.
- Read the net, tax and gross amounts, then copy the breakdown.
Tax-inclusive vs. tax-exclusive
To add tax to a net price you multiply by (1 + rate). To extract tax from a gross price you divide by (1 + rate). The tax is simply the difference between the gross and the net, and net plus tax always equals the gross total.
Features
Add or remove tax
Go in both directions: turn a pre-tax price into a gross total, or pull the net price out of a tax-included amount.
Rate presets
One-tap presets for common rates like 10%, 8%, 20% and 5%.
Any custom rate
Type any tax or VAT rate to match your country or product category.
Rounding control
Round results up, down, to the nearest unit, or keep exact decimals.
Clear breakdown
See net, tax and gross side by side with a visual bar so the split is obvious.
Common use cases
Invoices & quotes
Add tax to a pre-tax figure to show the total a customer will actually pay.
Reading a receipt
Work backwards from a tax-included total to find the net price and the tax paid.
Budgeting & expenses
Separate tax from a price when recording expenses or claiming it back.
Different rates
Compare the total under different tax rates for cross-border or reduced-rate items.
Notes & tips
- Tax and VAT rates vary by country and product type — enter the rate that applies to you.
- Rounding rules differ between businesses and tax authorities; choose the one that matches yours.
- Values are shown as plain numbers without a currency symbol, so it works for any currency.
- All calculations happen on your device — nothing is sent to a server.
Frequently asked questions
- How do I add tax to a price?
- Enter the tax-exclusive amount, choose the add-tax mode and a rate. The calculator multiplies by (1 + rate) to show the gross total and the tax.
- How do I find the price before tax?
- Enter the tax-inclusive amount and choose the remove-tax mode. The calculator divides by (1 + rate) to show the net price and the tax included.
- Can I use a custom tax rate?
- Yes. Use a preset for common rates, or type any rate to match your country, region or product category.
- How is rounding handled?
- You can round the result up, down, to the nearest unit, or keep the exact decimal value, depending on what your accounting requires.
- Is my data uploaded?
- No. The calculator runs entirely in your browser. Nothing is sent to a server and there is no sign-up.