Sales tax calculator for 2026

Calculate sales taxes for residents of Quebec 2026

How to calculate GST and QST in Québec?

Accurately calculating the Goods and Services Tax (GST) and the Quebec Sales Tax (QST) is essential for invoicing, budgeting, and tax compliance in Quebec. The formulas below follow the official methodology used by Revenu Québec and the Canada Revenue Agency.

Amount before sales tax × (GST rate / 100) = GST amount
Amount before sales tax × (QST rate / 100) = QST amount
Amount before sales tax + GST amount + QST amount = Total amount including taxes

These calculations apply to most taxable goods and services sold in Quebec. Certain exemptions or special cases may apply depending on the nature of the transaction.

What are the GST and QST rates in 2026?

In 2026, the GST rate is 5% and the QST rate is 9.975%.

There have been no changes to these rates in 2026.

Sales taxes for Quebec residents purchasing from other Canadian provinces (2026)

When a Quebec resident purchases goods or services from another Canadian province, the applicable sales tax depends on the province where the supplier is located. In many cases, only the federal GST applies.

Some provinces use the Harmonized Sales Tax (HST), which combines federal and provincial taxes into a single rate. In those situations, the HST replaces the GST and no separate QST is charged.

Specific rules may also apply depending on the type of product (for example, books or zero-rated supplies) and whether the seller is registered for Quebec sales tax.

Sales taxes for Quebec residents purchasing outside Canada

For purchases made outside Canada by Quebec residents, no GST or QST is charged at the time of sale under current regulations. This generally applies to international transactions where the seller is not registered for Canadian or Quebec sales taxes.

However, customs duties, import taxes, or brokerage fees may still apply when goods enter Canada.

Reverse GST and QST calculator