How to correctly bill GST and QST in a Quebec law firm

Practical guide for Quebec law firms: apply GST and QST to your fees, avoid common billing errors and automate tax handling.

This article covers GST and QST as they apply to Quebec law firms. In other provinces, GST may apply alone or as part of HST depending on the jurisdiction.

1. GST and QST on legal fees: the basics

Most legal services rendered in Canada are subject to GST (5%) and, in Quebec, QST (9.975%). Billing errors can lead to costly adjustments, interest and penalties, not to mention accounting headaches.

For a law firm, the challenge is not only to calculate tax correctly but to distinguish what is taxable from what is not, to issue compliant invoices and to track amounts to remit to tax authorities.

2. What is generally taxable

Professional fees for legal services.
Administrative and management fees billed to the client.
Certain disbursements recharged to the client when you are essentially acting as supplier.

3. Special cases and common errors

Errors often arise in the treatment of disbursements and in situations where the lawyer acts as agent.

Recharging taxable disbursements without applying tax correctly.
Forgetting to tax certain "flat" fees that are considered services.
Failing to distinguish what should be recorded as disbursements versus fees.

4. Automating GST/QST billing in software

Practice management software built for law firms can:

Set GST and QST (or HST) rates once.
Define for each type of service or disbursement whether it is taxable.
Calculate tax automatically on every invoice and line item.
Generate periodic reports of tax to remit (collected vs. remitted).

5. How PragmaLegal handles GST/QST for you

In PragmaLegal, every invoice automatically applies GST and QST (or HST) according to the rules you set for your services. Financial reports let you see at a glance:

Total GST and QST billed over a given period.
Amounts to remit to tax authorities.
The real impact of tax on your cash flow.