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Quebec Tax Special: Understanding GST + QST

2026-02-12

By Canada GST/HST Calculator Editorial Team

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La Belle Province's Unique Tax Landscape

Doing business in Quebec requires knowledge of two different tax authorities.

1. The Combined Rate

Quebec has a total tax rate of 14.975%. This is calculated as:

  • 5% GST (Federal)
  • 9.975% QST (Provincial)

2. Revenu Québec Administration

In other provinces, the CRA handles GST/HST. In Quebec, Revenu Québec handles both the GST and the QST for all businesses located in the province. This means you file one single return to one agency.

3. Registration Requirements

If you sell to customers in Quebec from another province, you may need to register for QST specifically if your sales exceed $30,000, similar to the federal rule.

4. Zero-Rated vs. Exempt in Quebec

Most items that are zero-rated for GST (like basic groceries) are also zero-rated for QST, keeping the math simple for retailers.

Calculate GST vs QST breakdown instantly for Quebec transactions →

FAQ: Quebec Tax

Is it QST or TVQ?

They are the same. QST stands for Quebec Sales Tax, while TVQ (Taxe de vente du Québec) is the French equivalent.

Do I need a separate QST number?

Yes, businesses in Quebec have a GST number (from CRA but managed by RQ) and a separate QST registration number.

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