Canadian invoices are simple when you separate the basics from the tax details. This guide explains what to include, when GST/HST or PST matters, and how to make every invoice easier for clients to approve and pay.
What Every Canadian Invoice Should Include
A good invoice should let a client answer three questions quickly: who sent this, what work was done, and how much is due. Start with your business name, address, contact details, the client name, the invoice date, a unique invoice number, a description of the work, the subtotal, any taxes, the total, and payment instructions.
If you are registered for GST/HST, your invoices also need to support your tax records. The Canada Revenue Agency expects businesses to keep enough invoice-level detail to show what was sold, when it was sold, what tax was charged, and who was involved.
GST, HST, PST, and QST
Canada does not have one single sales tax system. Depending on where you operate and where the customer receives the supply, you may deal with GST, HST, PST, QST, or no sales tax at all.
GST is the federal goods and services tax.
HST combines the federal GST with a provincial component in participating provinces.
PST or QST may apply separately in provinces that run their own sales tax system.
The practical point is this: do not guess the tax line. Use the correct rate for the province and transaction type, and show the tax separately enough that your client and accountant can follow it later.
If You Are Not Registered for GST/HST
If you are a small supplier and not registered, do not charge GST/HST. Your invoice can still look professional, but it should not include a GST/HST line or imply that tax was collected. Many small businesses add a short note such as: “Not registered for GST/HST.”
If You Are Registered for GST/HST
Registered businesses should include their legal business name, invoice number, invoice date, client details, a description of the work, the amount before tax, the applicable GST/HST rate, the tax charged, and the total. Include your Business Number where appropriate, especially for clients who may claim input tax credits.
Payment Terms Matter
Canadian clients are used to clear payment terms. Use plain language: “Due on receipt,” “Due in 14 days,” or “Due in 30 days.” If you accept e-transfer, card, bank transfer, or cheque, say exactly how to pay. The less your client has to ask, the faster the invoice can move through approval.
Keep Records Clean
Keep copies of invoices, receipts, contracts, payment confirmations, credit notes, and tax filings. Clean records are useful for tax time, but they also protect you when a client disputes a charge or asks for details months later.
Simple Canadian Invoice Checklist
Business and client details
Unique invoice number
Invoice date and payment due date
Clear work description
Subtotal, taxes, and total due
GST/HST or PST details when applicable
Payment instructions