Starting a construction business in Québec in 2026: the steps in order

NEQ, GST/QST, RBQ licence, CCQ, CNESST, insurance: the steps in order to start without penalties, with the legal deadlines and the official 2026 fees.

Many contractors start in the wrong order: a first contract signed before the licence, a first employee hired before registering with the CNESST, an invoice without tax numbers. Every mistake can be caught up, but each one costs — penalties, retroactive premiums, a lost contract. Here is the order that avoids those costs, with the 2026 amounts and the official sources.

The sequence at a glance

The steps, in order

1. Choose the legal form. The sole proprietorship is simple and inexpensive ($41 registration), but your personal liability is unlimited — in construction, where the risks are heavy, most contractors form a business corporation ($397 in Québec): limited liability (with exceptions: personal guarantees demanded by lenders, directors' liability for source deductions), separate taxation, credibility. The general partnership suits partners who share everything. Decide before the licence: the RBQ licence is issued to the entity; moving later from the sole proprietorship to the corporation requires a new application in the corporation's name (your exams, though, remain recognized for five years).
2. Register the business and obtain the NEQ. Registraire des entreprises: $41 for a natural person ($61.50 with priority processing), $397 to incorporate a business corporation ($595.50 priority). A sole proprietorship operated under a name that is not yours must register within 60 days of the start of activities. Then, an annual updating declaration ($41 / $106), with penalties if late. The NEQ is required for the RBQ licence application (except a natural person under their own name).
3. Register in the Revenu Québec files. Registration for GST and QST becomes mandatory when your taxable supplies exceed $30,000 in a calendar quarter or four consecutive quarters — in construction, your first contract is often enough. Register from the start: you recover the taxes paid on your purchases (ITC/ITR) and your estimates carry your numbers. In Québec, Revenu Québec also administers the GST. From the first pay, add source deductions (Revenu Québec and the Canada Revenue Agency).
4. Obtain the RBQ licence. Subclasses (1.2 "small buildings" for most renovators), qualified officer, four areas of qualification (exams at $105.27, recognized training or professional file), security of $40,000 (general) or $20,000 (specialized), fees and charges of $1,291.69 (general) or $849.41 (specialized). The Régie processes a complete file in 60 days, excluding your delays and the exams — allow several months. Everything is detailed in RBQ licence in 2026: the guide. New residential: GCR accreditation as well ($556.48 analysis fee + financial guarantee).
5. Register as an employer with the CCQ — if your work is subject to Act R-20, which is the case for most construction work (exceptions exist: non-profit owner-building, certain maintenance work; the CCQ decides, not your intuition). The RBQ licence comes first. Then: designate a designated representative (member, director or voting shareholder) who holds or applies for a competency certificate ($100 if the certificate is requested; $50 to replace a representative), declare every hire and end of employment, produce the monthly report with the amounts due, keep a daily register of hours, respect the journeyperson-apprentice ratios and the regional rules. Project owners will ask you for a letter of compliance (lettre d'état de situation): it proves your file is in order — and protects the general contractor, jointly liable for wages owed by its subcontractors (s. 54 of Act R-20).
6. Register with the CNESST. You have 60 days from your first worker's first day of work — and you can register up to 30 days before they arrive. Late registration: late fees, plus the insurance premium and administration fees for every year you should have contributed. The premium depends on your classification unit. Officers are not covered by default: optional personal coverage exists. Then come the prevention obligations (by size) and accident reporting — a serious or fatal accident is announced immediately, with a written report within 24 hours.
7. Insurance, guarantees and permits. Civil liability (the client will ask you for the policy number, the OPC advises them to), licence security, builder's risk insurance for large projects, vehicles and tools. If you sign contracts at your clients' homes — the typical case for a renovator — you need an itinerant merchant permit from the OPC, and your clients have a 10-day cancellation right during which you cannot collect a deposit (unless the materials are delivered). It is the permit new contractors forget most often.
8. Account, bookkeeping, first documents. A separate bank account from day one; accounting software for taxes and payroll, an operations tool for estimates, job sites and compliance; keep your records six years. Your first three documents: the estimate (RBQ number, tax numbers, sections, GST/QST shown, validity — the template is here), the contract (the content the OPC expects: description, materials, dates, price, payment, insurance, change orders) and the invoice (same numbers, taxes, holdback where applicable).

The realistic calendar

Start-up costs — 2026 government fees

Outside the table, because variable: the licence security premium, liability insurance, the CNESST premium, GCR ($556.48 + financial guarantee) for new residential, the representative's CCQ certificate ($100), the accountant, tools, the vehicle. These amounts are those posted by the bodies on August 31, 2026; the Régie's are indexed every January 1.

The most frequent start-up mistakes

• Bidding without a licence — an offence, and the client checks it in thirty seconds in the RBQ register.
• Hiring before the CNESST — late registration costs the retroactive premium and fees.
• Forgetting the itinerant merchant permit when signing at the client's home.
• Invoicing without taxes after crossing $30,000 in taxable supplies.
• Believing you are outside the CCQ because you are small — coverage depends on the work, not on size.
• Being the only qualified officer without a succession plan: one departure, and the licence no longer covers the area.
• Mixing personal and business accounts — reconstructing them costs more than the accountant.

Where BatiCore fits in

Not in the incorporation or the licence application: those are steps with the bodies. But from the first day of operation, the company profile (NEQ, RBQ licence, tax numbers) prints on every document; estimates come out compliant, with sections, options and taxes shown; CCQ payroll is prepared — hours by trade, collective-agreement rates, deductions — for your accountant or your payroll software (BatiCore prepares, it does not transmit); and the compliance deadlines (licence, ASP cards, certifications) live in the same place. The data stays in Québec — an argument your commercial clients will raise sooner or later.

The BatiCore team

We build BatiCore, management software for Québec construction contractors — estimates, job sites, CCQ payroll, compliance. Our articles cite dated public sources; when a fact comes from a regulator or a competitor, we say which one and when. Spotted an error? Write to us, we fix it.