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GST 5% + QST 9.975%Updated June 20, 2026

Quebec Sales Tax Calculator (GST + QST)

Calculate Quebec's combined sales tax: 5 percent GST plus 9.975 percent QST, for a 14.975 percent total. Add the taxes to a price or extract them from a tax-included amount. 2026 rates, no email required.

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Calculator · Canadian Sales Tax

Calculate GST, HST, PST, and QST

Three inputs. Pick an amount, a province, and the direction, and get the full tax breakdown. 2026 rates. No email required.

Direction Add tax to a pre-tax amount, or extract it from a tax-included amount
Grand total with tax$114.98Quebec · 14.975% tax
Pre-tax amount$100.00
GST (5%)$5.00
QST (9.975%)$9.98
Total tax$14.98
Grand total$114.98

Rates as of 2026, for guidance only. QST applies to the pre-tax base with no compounding on GST. Does not account for zero-rated or exempt goods, or input tax credits. Confirm the applicable rate before invoicing.

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Need another province? Open the calculator for all 13 provinces and territories →

01

Sales tax in Quebec

Quebec charges two taxes: the 5 percent federal GST and the 9.975 percent Quebec Sales Tax (QST), for a combined 14.975 percent. Since 2013 the QST applies to the same pre-tax base as the GST, so it is no longer compounded on the GST-included amount. On a 100 dollar sale, GST is 5 dollars and QST is 9.975 dollars, both calculated on the 100 dollars.

Revenu Quebec administers both the GST and the QST in the province, so most Quebec businesses file a combined return. Getting the pre-tax base right matters, which is exactly why this calculator never compounds QST on top of GST.

Official sources: Canada Revenue Agency · Revenu Québec.

02

GST 5% + QST 9.975% on common amounts in Quebec

Pre-tax amountTaxTotal with tax
$50.00$7.49$57.49
$100.00$14.98$114.98
$250.00$37.44$287.44
$500.00$74.88$574.88
$1,000.00$149.75$1,149.75

Calculated at the 14.975% total rate for Quebec. Use the calculator above for any amount.

03

Configuring these taxes in Odoo

Odoo ships the Canadian localization with per-province taxes already defined. Fiscal positions apply the correct rate automatically from the customer address, so a sale in Quebec uses the right rate with no hand-keying. Octura configures and validates this setup, including account mapping for input tax credits.

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  • ManufacturingV12 → V17

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Frequently Asked Questions

  • 01Is QST calculated on top of GST in Quebec?

    No. Since 2013, QST applies to the same pre-tax base as GST, with no compounding. Both taxes are calculated on the original pre-tax amount.

  • 02What is the total sales tax rate in Quebec?

    The combined rate is 14.975 percent: 5 percent GST plus 9.975 percent QST.

  • 03Who administers sales tax in Quebec?

    Revenu Quebec administers both the GST and the QST in the province, so businesses generally file a combined federal and provincial return.

  • 04How much is sales tax on $100 in Quebec?

    At the 14.975% total rate, the tax on $100 is $14.98, for a total of $114.98.