Québec QST filing
We prepare your Québec sales tax (QST) return from your sales data and send you a plain-language approval package. Filing for you is an add-on.
Due dates and where returns are filed
Under the specified system, Revenu Québec lists quarterly due dates of April 30, July 31, October 31 and January 31. Under the general system, Revenu Québec assigns a filing frequency (monthly, quarterly or annual) based on expected annual taxable sales, and a business may be able to elect a different one.
Specified-system returns are filed in My Account for suppliers outside Québec. General-system returns are filed in My Account for businesses.
Last reviewed: October 26, 2026
Official pages
What we do
We prepare your QST return each quarter and reconcile it to your sales report. You get the figures, the reconciliation and step-by-step filing instructions, plus deadline reminders.
How it goes
You send your sales report each quarter. We prepare the return and send you the approval package. Nothing is filed until you approve it. You file with our step-by-step guide, or ask about the “We file for you” add-on. You pay Revenu Québec directly. See how it works.
Availability
- QST returns, general systemAvailable
- QST returns, specified system (NR)We file only once Revenu Québec has accepted your procuration. Until then, we prepare and you file.Available · procuration required