Work out Quebec's 9.975% QST plus 5% GST — 14.975% combined — on any amount, instantly.
Before tax
$0.00
Tax
$0.00
Total
$0.00
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What is QST?
The Quebec Sales Tax (QST) is Quebec's own provincial sales tax, charged at 9.975% on top of the 5% federal GST, for a combined rate of 14.975%. Unlike the five HST provinces, Quebec doesn't blend the two into a single rate — GST and QST remain two distinct taxes, both usually shown on a receipt.
Why Revenu Québec, not the CRA, handles GST here
Under an agreement between Quebec and the federal government, Revenu Québec administers the federal GST inside Quebec's borders in addition to its own QST. That means a Quebec business dealing with GST registration, returns, audits or objections generally deals with Revenu Québec directly rather than the CRA — the only province where the provincial revenue agency is the main point of contact for both taxes.
Quebec at a glance
Federal GST
5%
Provincial QST
9.975%
Combined rate
14.975%
Sales tax map of Canada
Tap a province or territory to open its calculator.
Removing QST from a total: Price = total ÷ 1.14975. Tax = total − price.
Worked example
A $300 purchase in Quebec: tax = $300 × 0.14975 = $44.93. Total = $300 + $44.93 = $344.93. Working backwards from that $344.93 total: price = $344.93 ÷ 1.14975 = $300.00, tax = $344.93 − $300.00 = $44.93.
Frequently asked questions
What is the QST rate?
9.975%, on top of the 5% federal GST, for 14.975% combined.
Is QST the same as PST?
Conceptually similar — a provincial sales tax added to GST — but QST is specific to Quebec and administered by Revenu Québec. See the PST calculator for BC, Manitoba and Saskatchewan.
Does this calculator work for both GST and QST in Quebec?
Yes — selecting Quebec applies the full 14.975% combined rate and breaks the result down into its GST and QST portions.
Do I register for QST with the CRA or Revenu Québec?
Revenu Québec — it administers both GST and QST registration inside Quebec, the only province where the provincial agency is the point of contact for the federal tax too.
Is GST shown separately from QST on receipts?
Usually yes — most Quebec receipts show GST and QST as two separate line items, unlike HST provinces which show one blended rate.
Why is 14.975% not a round number?
QST is calculated on the price alone (not compounded on GST), and its statutory rate is 9.975% — added to the 5% GST that gives the 14.975% combined figure.
Add this calculator to your website
Free to use on your own site — copy the snippet below. It includes a small credit link back to GST HST Calculator.
The full embed widget and licensing options are being built out under a separate project (SUR-49) — see the embed & widget page for the current preview.