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Quebec GST + QST Calculator

Quebec's combined sales tax rate is 14.975%. Use this free calculator to add it to a price — or strip it out of a total that already includes it — instantly, with no signup. 5% GST + 9.975% QST = 14.975% combined, each calculated on the price before tax.

Quebec GST + QST Calculator

Results update live as you type. Amounts in CAD. Nothing leaves your browser.

Combined rate: 14.975% — 5% GST + 9.975% QST = 14.975% combined, each calculated on the price before tax.

Your Numbers
“Add tax” starts from a net price. “Remove tax” works backwards from a total that already includes tax. This is the GENERAL combined rate in Quebec — zero-rating, exemptions and narrower provincial-tax coverage may apply to specific items. If you know a different rate applies to your item, type it into the rate field.
Your result
0.00
total including tax
Net amount (before tax)0.00
Tax amount0.00
Gross amount (with tax)0.00
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Combined rate verified October 2026 · Source: Revenu Québec — GST and QST rates

How to calculate Quebec sales tax in 3 steps

  1. Enter your amount. Type the price you are working with — either before tax or tax-inclusive, depending on what you have.
  2. Pick the rate and direction. The 14.975% combined rate is pre-filled and editable; choose “Add tax” or “Remove tax”.
  3. Read the split instantly. You get the net amount, the exact tax, and the gross total — ready to quote, invoice, or check a receipt against.

Why getting the Quebec split right matters

Whether you are a seller working out what to charge or a buyer checking a receipt, the split matters: net, tax, total. Get any one of them wrong and either you absorb the tax or your customer disputes the invoice. This calculator shows all three instantly, in Canadian dollars.

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Quebec sales tax FAQ

The combined rate is 14.975%. 5% GST + 9.975% QST = 14.975% combined, each calculated on the price before tax. Quebec charges 5% GST plus 9.975% Quebec Sales Tax (QST), each calculated on the price before tax, for 14.975% combined. Revenu Québec administers both taxes in Quebec.
Multiply the net price by the combined rate and add it on: a C$100.00 item at 14.975% gives C$14.97 of tax and a C$114.97 total. In the calculator, choose “Add tax”, enter the amount and rate, and the split appears instantly.
Divide the gross total by (1 + rate ÷ 100). At 14.975%, a C$100.00 total divides to a C$86.98 net — the tax inside it is C$13.02. Choose “Remove tax” in the calculator and it does this for you.
Quebec runs its own Quebec Sales Tax alongside the federal GST. 5% GST + 9.975% QST = 14.975% combined, each calculated on the price before tax. Revenu Québec administers both taxes in Quebec.
No. Zero-rating and exemptions apply to some items under the GST/HST, and in GST+PST provinces the provincial tax covers a narrower range of goods and services than the GST does. This calculator uses the general combined rate; type a different rate if your item qualifies for another treatment.
Yes — unlimited calculations, no signup, no watermark. Everything runs in your browser; nothing you type is uploaded anywhere.

Related calculators

See all provinces and territories, try the tax calculator for any rate, or put the result on a free invoice. More province calculators: Prince Edward Island · Saskatchewan.