Quebec Sales Tax Calculator

How to Use the Quebec Sales Tax Calculator

1. Choose Add GST + QST, or Remove taxes to find the price before tax.
2. Enter the amount before tax, or the tax-included total when reversing.
3. Read the total with taxes, the 5% GST and the 9.975% QST.

Choose Add GST + QST to turn a price into a total, or Remove taxes to work backward from a receipt. Then type the amount, with or without commas, and the result appears as you type.

In add mode, enter the amount before tax and read the total with taxes. The tool lists the price, the 5% GST, the 9.975% QST and the combined taxes, each one rounded to the cent.

In remove mode, enter the receipt total and read the price before taxes. The Copy button of this Quebec tax calculator gives a one line summary for an invoice, expense report or sales tax note.

Quebec Sales Tax Rates in 2026

Quebec charges two separate sales taxes. The federal GST rate is 5% and the provincial QST rate is 9.975%, which adds up to a combined 14.975% on most goods and services sold in the province.

On French receipts the GST appears as TPS, for taxe sur les produits et services, and the QST appears as TVQ, for taxe de vente du Québec. They are the same taxes under different names.

Unlike most provinces, Quebec administers both taxes itself. Businesses in Quebec usually file just one return with Revenu Québec that covers the GST and the QST together, even though the GST is a federal tax.

GST and QST Formulas

Both taxes are calculated on the price before tax. Multiply the price by 0.05 for the GST and by 0.09975 for the QST, then add both to the price to get the total you pay.

Since January 1, 2013, the QST no longer applies on top of the GST, so the two taxes do not compound. Older calculators that stack the QST on the GST give a higher, outdated answer.

In a worked example, a $100 purchase has $5.00 of GST and $9.98 of QST, so the total comes to $114.98. A $1,250 laptop, meanwhile, carries $62.50 of GST and $124.69 of QST, totaling $1,437.19.

Removing Taxes From a Total

A reverse calculation starts from a receipt total. Divide the total by 1.14975 to find the price before tax, then work out each tax on that price. For example, $57.49 divided by 1.14975 is $50.00.

Rounding can leave the three lines one cent away from the printed total. The calculator fixes this by adjusting the pre-tax amount, so the price, GST and QST always add up exactly to the receipt.

A $100 total shows exactly how this works. Dividing gives $86.98, but taxes of $4.35 and $8.68 would then make $100.01, so the tool reports $86.97 before tax, which balances the receipt to the cent.

GST and QST on Common Amounts

The table below shows common amounts with each tax rounded separately, exactly the way printed receipts show them. A $50 item costs $57.49 with both taxes, and a $100 item costs $114.98 with taxes included.

Rounding each tax to the cent can make the total differ by a cent from multiplying the price by 1.14975 in one step. Receipts round each tax separately, and this calculator does exactly the same.

For quick estimates in a store, simply add 15% to the shelf price. That shortcut is slightly high, by 0.025% of the price, which is about two and a half cents on a $100 purchase.

How Quebec Compares With Other Provinces

At 14.975%, Quebec's combined rate sits neatly in between the 14% HST in Nova Scotia and the 15% HST in New Brunswick, Newfoundland and Labrador, and Prince Edward Island, according to the CRA rate table.

Ontario charges a 13% HST, while Alberta and the three territories charge only the 5% GST. In the HST provinces, the harmonized sales tax combines the federal and the provincial parts into one single rate.

Quebec has never joined the HST. Its QST stays a separate provincial tax, which is why Quebec receipts show GST and QST on a separate line each instead of one combined harmonized sales tax amount.

Zero-Rated and Exempt Supplies

Not everything is taxed at 14.975%. Zero-rated supplies, such as basic groceries and prescription drugs, are taxed at 0%, and the seller can still recover the taxes it paid on its own eligible business costs.

Exempt supplies, such as most financial services and many residential rents, carry no tax at all, but the seller cannot recover input taxes. The difference matters for businesses, not for everyday shoppers at the checkout.

Special rules apply to used vehicles bought from private sellers, where the QST is paid at the SAAQ when the vehicle is registered. This calculator simply applies the standard rates to whatever amount you enter.

Tips for Quebec Businesses

Most businesses must register for both taxes once worldwide taxable sales pass the $30,000 small supplier threshold. Below it, registering is optional, though many still register so they can recover the taxes paid on purchases.

• Show GST and QST as separate lines on invoices, with both registration numbers.
• Round each tax to the cent, and adjust the pre-tax amount when you reverse-calculate so the lines match the total.
• Keep invoices for purchases to support every claim.

Registered businesses can generally claim input tax credits for GST and input tax refunds for QST paid on business purchases. Revenu Québec explains the calculation rules, rounding and the details required on all your invoices.

This calculator gives an estimate for planning, not tax, legal or financial advice. Tax treatment depends on what is sold and where it is delivered, so confirm important figures with a qualified tax professional first.

Frequently asked questions