General information tools only — not tax or financial advice. Rates and rules vary by country and change over time; confirm important figures with a qualified accountant.
How to use the vat / sales tax calculator
Two directions, one tool
Add tax when you have a net (before-tax) price and need the invoice total. Remove tax when a receipt or till total already includes tax and you need the net figure for your books — the most common VAT question in bookkeeping.
Your rate, your country
VAT and sales-tax rates differ by country and product, and they change over time. That is why this calculator asks you for the rate instead of assuming one — the quick-pick buttons are examples only. Check your local tax authority's current rate before filing.
Example
Net 100 at 20%: tax = 20, gross = 120. Working backwards, a gross price of 120 at 20% splits into net 100 and tax 20 — enter 120 in “Remove tax” mode to see it.
Frequently asked questions
How do I remove VAT from a price?
Divide the gross price by 1 + (rate / 100). At 20%, divide by 1.20. A 120 gross price is 100 net plus 20 tax.
Why is the tax in a 120 price not 24 at 20%?
Because the 20% applies to the net price (100), not the gross. 20% of 120 would double-count the tax itself.
Does this work for US sales tax?
Yes. Sales tax uses the same maths: add it to a net price, or divide a tax-inclusive total by 1 + rate to back it out.
More free tools
Take-Home Pay Calculator
Start from gross salary, add your own deduction rows, and see the real net pay per month and per year.
Depreciation Calculator
Straight-line and declining-balance schedules for any asset, year by year, ready for your books.
Break-Even Calculator
Find how many units you must sell to cover your costs — and what profit looks like beyond that point.
Margin & Markup Calculator
Convert between cost, price, margin, and markup — and find the price that hits your target margin.
Loan Payment Calculator
Monthly payment, total interest, and a first-year amortisation breakdown for any loan or finance deal.
Compound Interest Calculator
See savings and investments grow with regular monthly contributions, year by year.
Invoice Total Calculator
Build an invoice with line items, discount, and tax — and print a clean total for your client.
Salary to Hourly Converter
Convert an annual salary to hourly, weekly, and monthly pay — or turn an hourly rate into a salary.
Business Ratios Calculator
Current ratio, quick ratio, debt-to-equity, and gross margin — with plain-English explanations.