Insights

Nov 7, 2025

Mackisen

Revenu Québec Business Taxes: Understanding GST and QST Obligations

In Quebec, businesses must collect and remit both the federal Goods and Services Tax (GST) and the provincial Quebec Sales Tax (QST) on most sales of goods and service Unlike other provinces, Quebec has a unique arrangement: Revenu Québec administers both GST and QST on behalf of the federal government This means if your business operates in Quebec, you file combined GST/QST returns directly to Revenu Québec instead of separately to the Canada Revenue Agency (CRA) Every reporting period, even if you have no tax to remit, you must file a GST/QST return (including nil returns). Failure to file can result in penalties, so it’s vital to stay compliant.

Key obligations: For Quebec businesses include: registering for GST/QST, charging the taxes on sales, calculating your net tax (tax collected minus credits), and filing returns on time The sections below break down each of these steps in detail.

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Mackisen Consultation Inc.

Email: info@mackisen.com

5396 Avenue du Parc, Montreal, Quebec H2V 4G7

Telephone: 514-276-0808

Fax: 514-276-2846