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Sales Tax / VAT / GST Calculator

Add or extract sales tax, VAT, GST or HST with built-in rates for common jurisdictions.

  • sales tax
  • vat
  • gst
  • hst
  • qst
  • pst
  • tax
  • jurisdiction

About Sales Tax / VAT / GST Calculator

Consumption tax goes by half a dozen different names — VAT (Europe), GST (Canada, Australia, New Zealand), HST (Atlantic Canada and Ontario, where federal and provincial portions are merged), QST (Quebec's parallel provincial tax), PST or RST (other Canadian provinces), and "sales tax" in the United States. The mechanics are roughly the same: a percentage added to the pre-tax price, collected by the merchant, remitted to the government.

The wrinkles are in the rates and combinations. Ontario charges a single 13% HST. Quebec charges 5% GST plus 9.975% QST on top of each other. The UK applies 20% VAT to most goods but 0–5% to others. US state rates range from 0% (Delaware, Oregon) to over 7%, and most US cities add their own on top — the "combined average" rates here are typical of the state's main metro areas. Always confirm against a current rate table for anything legally consequential.

How to use

Pick "Add tax" if you have a pre-tax amount and want to know the total. Pick "Extract tax" if you have a total that already includes tax and need to back out the net (a common need on expense reports). Type the amount, choose a jurisdiction from the dropdown — Canadian provinces, common European VAT countries, Australia/NZ, and average US combined rates are listed — or pick "Custom rate" to type any percentage.

Each result card is clickable to copy the value. The currency selector affects display formatting only; it doesn't change the rate. Tax rates here are accurate as of mid-2026 but can change with budgets and legislation, so verify against official sources for anything legally binding.

Frequently asked questions

  • What's the difference between GST, HST, PST, and QST?

    They're all Canadian consumption taxes. GST is the 5% federal Goods and Services Tax. PST is a separate provincial sales tax in BC, Saskatchewan, and Manitoba. RST is Manitoba's name for its PST. QST is Quebec's 9.975% provincial tax. HST (Harmonized Sales Tax) is what some provinces — Ontario, New Brunswick, Newfoundland and Labrador, Nova Scotia, PEI — use when they've harmonised their provincial portion with the federal GST into a single rate (13–15%) administered together.

  • How do I extract tax from a total that already includes it?

    If the total includes a tax of rate r% (as a fraction), the net is total / (1 + r). For 13% HST, that's total / 1.13; for 20% VAT, total / 1.20. The tax portion is total minus the net. Switching this calculator to "Extract tax from total" does the same arithmetic.

  • Why aren't US sales tax rates exact?

    Because the US tax system is layered: a state base rate plus county, city, and special-district add-ons. A purchase made in downtown Chicago pays a different total rate than one a few blocks away. The figures here are typical averages across the state's populated areas — for a single transaction at a known address, look up the exact rate with a ZIP+4 lookup tool.

  • Why does Quebec's combined rate look strange (14.975%)?

    Because Quebec's QST (9.975%) and the federal GST (5%) are applied sequentially rather than added together. Historically QST was applied to the GST-inclusive amount, which compounded the two taxes; since 2013 QST is applied to the GST-exclusive price, so the combined rate is now simply 5 + 9.975 = 14.975%. The shop receipt usually itemises both lines separately.

  • Do I charge tax when selling to another country?

    Generally no for exports — most consumption tax systems zero-rate (don't charge tax on) goods physically leaving the jurisdiction. The wrinkle is digital services: the EU, UK, Canada, Australia, and many others now require non-resident sellers of digital products to register and collect VAT/GST in the customer's country once you cross a sales threshold. That's out of scope for this calculator — talk to an accountant for any cross-border business.

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