How to Invoice in Canada

In Canada, what an invoice needs depends on the GST/HST and on the size of the sale. The Canada Revenue Agency (CRA) says (Canada, page modified October 14, 2026): "Suppliers have to provide specific information on the invoices, receipts, contracts, or other business papers that they use when they supply taxable property and services to a GST/HST registrant purchaser." It adds: "The purchaser needs this information to support their claims for ITCs or rebates for the GST/HST they were charged."

Not every business has to register. On registration, the CRA says (Canada, page modified June 16, 2026): "You are no longer a small supplier at the end of the month following the quarter in which you exceed $30,000." It also says: "You may choose to register voluntarily if you make taxable sales, leases, or other supplies in Canada." Ask the CRA or a local accountant how these rules apply to your business.

Worked example, with sample figures in Canadian dollars: a GST/HST-registered consultant bills a business client for a supply made in Ontario, 20 hours at $100.00, so 20 × $100.00 = $2,000.00. The CRA's rate table (Canada, page modified April 8, 2026) lists "Ontario 13% N/A" under its "GST and HST" and "PST" columns, so the HST is 13% of $2,000.00 = $260.00 and the invoice total is $2,000.00 + $260.00 = $2,260.00. That total falls in the CRA chart's "Total sale of $500 or more" column, which also asks for the buyer's name, a brief description and the terms of payment.

In Billed, the invoice software page says: "Save your tax rates and settings once, and Billed calculates taxes automatically when you create invoices and estimates." For a client who pays in another currency, it says you can "Invoice customers in multiple currencies, choosing a different currency for each invoice or customer."