Insight

Nov 28, 2025

Mackisen

GST/QST Rules for Consultants and Freelancers in Quebec: Charging Tax, Invoices, and Claiming ITCs/ITRs

Introduction

Consultants and freelancers in Quebec — whether working in IT, design, marketing, engineering, coaching, real estate, or any service profession — face specific GST/QST obligations.
Because their work is service-based, home-based, and often involves mixed-use expenses, consultants are frequently audited by Revenu Québec for missing registration thresholds, incorrect invoicing, and improper ITC/ITR claims.
This guide explains how GST/QST applies to consultants, when to charge tax, how to structure invoices, and what expenses are eligible for credits.

Legal and Regulatory Framework

Under the Excise Tax Act (GST) and the Quebec Taxation Act (QSTA), consultants and freelancers must:

  • Register for GST/QST once they exceed $30,000 in taxable revenues over any 12-month period.

  • Charge GST (5%) and QST (9.975%) on all taxable services performed in Quebec.

  • Issue invoices that meet mandatory requirements (supplier info, GST/QST numbers, description, tax breakdown).

  • Remit collected taxes by the prescribed deadline.

  • Claim input tax credits (ITCs) and input tax refunds (ITRs) only on eligible business expenses.

  • Keep detailed books and records for six years.

Authorities enforce compliance through:

  • ETA s.240 (registration requirement)

  • ETA s.165 and QSTA s.16 (tax on taxable supplies)

  • ETA s.169(4) and QSTA s.39 (documentation rules for ITCs/ITRs)

  • ETA s.286 and QSTA s.24 (record-keeping obligations)

Key Court Decisions

Courts across Canada have ruled that:

  • Consultants must charge GST/QST once they meet the threshold; “forgetting” does not eliminate liability.

  • ITCs/ITRs are denied when invoices lack GST/QST registration numbers, detailed descriptions, or proof of payment.

  • Personal-use expenses (vehicle, phone, home office) must be prorated with credible documentation.

  • Service suppliers cannot backdate their registration to claim past credits — only post-registration expenses qualify.

These decisions emphasize strict compliance for service professionals.

Why CRA and Revenu Québec Target These Issues

Consultants and freelancers attract audits because:

  • Many delay registration past the $30,000 threshold.

  • Home-based businesses often mix personal and business expenses.

  • Invoices created using templates or text messages frequently miss required details.

  • ITC claims for laptops, software, phones, and home office expenses are commonly overstated.

  • Large first-year refunds and inconsistent quarterly filings raise red flags.

Industries most often reviewed include IT contractors, marketing consultants, social media managers, designers, coaches, accountants, and photographers.

Mackisen Strategy

We help consultants remain fully GST/QST compliant while maximizing allowable credits.

1. Registration and Setup

We ensure:

  • Proper GST/QST registration timing

  • Accurate tax settings in accounting or invoicing software

  • Marketplace platform compliance (Upwork, Fiverr, etc.)

2. Invoice Structure Review

We prepare fully compliant invoice templates containing:

  • Legal name and address

  • GST/QST numbers

  • Service description

  • Tax rate breakdown

  • Date and payment terms

3. ITC/ITR Optimization

We review expenses such as:

  • Software subscriptions

  • Laptops and equipment

  • Vehicle expenses

  • Home office

  • Marketing and website costs

We identify which portion is eligible and ensure documentation meets statutory requirements.

4. Audit-Proof Bookkeeping

We implement:

  • Separate business bank accounts

  • Organized digital receipt systems

  • Monthly reconciliation

  • Vendor verification

5. GST/QST Filing & Audit Defence

We prepare and file GST/QST returns accurately and represent you in case of any Revenu Québec review.

Real Client Experience

A freelance IT contractor earned $38,000 but assumed GST/QST didn’t apply because he worked remotely for a U.S. company. Revenu Québec assessed over $3,500 in uncollected QST.
We negotiated instalments, corrected filings, and set up proper GST/QST coding and invoicing for future compliance.
This shows how cross-border misunderstandings can easily lead to penalties.

Common Questions

1. Do I charge GST/QST to clients outside Quebec?
Most services are taxed based on the client's location. Interprovincial and international rules vary. Proper classification is essential.

2. Are coaching or consulting services taxable?
Yes — unless explicitly exempt under the law (rare).

3. Can I claim ITCs/ITRs on home office expenses?
Yes, but only for the business-use portion, supported by calculations.

4. Do online services require GST/QST?
Yes, if supplied to a customer in Canada. Digital and remote services remain taxable.

Why Mackisen

With more than 35 years of combined CPA experience, Mackisen CPA Montreal helps businesses stay compliant while recovering the taxes they’re entitled to. Whether you’re filing your first GST/QST return or optimizing multi-year refunds, our expert team ensures precision, transparency, and protection from audit risk.

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Learn how GST/QST applies to consultants and freelancers in Quebec. Mackisen CPA Montreal explains invoicing rules, registration thresholds, ITC/ITR eligibility, and audit-proof compliance for service professionals.

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