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VAT Calculator

Calculate VAT, sales tax, or GST for any amount. Add or remove tax instantly.

By Abass Gass, Founder of Incusia.

August 28, 2026 · 3 min read

Net amount

NOK 0.00

+ VAT (25%)

NOK 0.00

Gross amount

NOK 0.00

How VAT works on an invoice

VAT is a consumption tax added at the point of sale. You charge it, you hold it, then you pay it on to the tax authority. Sales tax and GST do the same job under other names. The math is a percentage of the net amount, or the inverse of a gross amount that already includes tax. This calculator does both directions so you are not hunting for a formula in a spreadsheet at midnight.

Add tax when a quote was given net and the client now needs the full figure. Remove tax when someone paid a round gross number and you need the net and the tax line for your books. Pick a country rate from the list, or type a custom percentage for local sales tax. Rates change. The table below is a starting point. Confirm the live rate before you file or send a real invoice.

  • VAT is added to most goods and services in countries that use it
  • Rates vary by country and sometimes by product type
  • Businesses collect the tax and remit it. They do not keep it.

Put the same rate on estimates that you will put on invoices. Buyers compare gross totals. An estimate that hides tax looks cheaper until the invoice arrives, which is how jobs die after a handshake. The Estimate Generator and Free Invoice Generator both take a tax figure. Use this page to get the number right, then type it there. Receipts should show net, tax, and gross when tax was collected.

Nothing you enter is stored. Refresh and it is gone. When you send invoices every week, Incusia can apply tax on line items so you stop copying results by hand. Starter is $9 per month with unlimited invoices, and that price is locked for the life of your account.

Standard VAT rates by country
CountryStandard rate
Norway25%
United Kingdom20%
Germany19%
France20%
Spain21%
Italy22%
Netherlands21%
Sweden25%
Denmark25%
Ireland23%
Australia10%
Canada5%
United StatesVaries. Enter your local rate.

Tax rates change over time. Verify current rates with local tax authorities.

Frequently asked questions

Incusia

Sending international invoices?

Incusia supports multiple currencies and tax rates automatically. Starting at $9/month, locked at the price you sign up at.

  • Save clients and invoices forever
  • Payment button on every invoice
  • Automatic reminders for overdue invoices
  • Dashboard tracks everything