
Accounting across Canada
Accounting and Tax Guide for Montréal Businesses
Montréal owners should first confirm which agency, the CRA or Revenu Québec, administers each account, then keep GST and QST control accounts apart.
By HBT AccountingSources checked 7 min read
Key points
- Businesses operating in Quebec may have obligations with both the CRA and Revenu Québec. GST, QST, source deductions, corporate filings, and online account access need to be mapped before the filing calendar is built.
- Statistics Canada reported 4,291,732 people in the Montréal census metropolitan area in the 2021 Census. This is census metropolitan area data, not a municipal population.
- HBT Accounting works from Calgary, Alberta and can discuss suitable remote engagements across Canada. This page does not represent a Montréal office.
What the official Montréal data shows
Statistics Canada ranked the Montréal census metropolitan area number 2 among Canadian census metropolitan areas by 2021 population. The official table reports 4,291,732 people across 4,670.10 square kilometres. That is about 919 people per square kilometre.
| Measure | Result |
|---|---|
| Population | 4,291,732 |
| Land area | 4,670.10 km2 |
| Population density | 919 people per km2 |
| National CMA rank | Number 2 |
Build the federal and Quebec reporting map
For a Montréal owner, the important first step is identifying which agency administers each account and which return, remittance, or slip supports it. The records should maintain separate tax control accounts, preserve bilingual source documents where relevant, and reconcile Revenu Québec filings to the general ledger. For GST or HST, the applicable rate can depend on the supply and the CRA place of supply rules, not simply the city shown on the invoice. Quebec sales tax (QST) requires its own current Revenu Québec review.

A practical accounting focus for Montréal
The local example is coordinating federal and Quebec accounts without treating GST and QST as one undivided balance.
The decision focus is whether the books clearly separate federal, Quebec, payroll, and corporate obligations before a deadline arrives.
- Separate GST and QST control accounts
- Match source deductions to the correct agency records
- Reconcile sales tax returns to revenue
- Confirm electronic filing requirements from current official guidance
Official sources
Call or email and we will tell you which records we need and what the work costs, in writing, before anything starts.
Important. This article provides general educational information, not legal or tax advice for a specific business. Rules, administrative policies, rates and deadlines can change. Confirm your facts and current obligations with the responsible government agency and a qualified adviser.