What is the difference between GST, HST, and PST?

GST is the federal 5% Goods and Services Tax. HST is a single Harmonized Sales Tax used in provinces like Ontario and the Atlantic provinces that combines the federal and provincial portions. PST is a separate Provincial Sales Tax charged on top of the 5% GST in provinces such as British Columbia, Saskatchewan, and Manitoba.

Do I need a Business Number (BN) on my invoice?

If you are registered for GST/HST you must show your 9-digit BN (often written with the RT program identifier, e.g. 123456789 RT0001) so clients can claim input tax credits. Small suppliers under the CRA threshold are not required to register or charge GST/HST.

Which province's tax rate should I charge?

For most goods and services the place-of-supply rules mean you charge the rate of the province where the customer receives the supply. This tool lets you pick that province so the correct combined rate is applied automatically.

Is this invoice legally valid in Canada?

A compliant invoice needs the supplier name and BN, the date, a description, the amount, and the GST/HST charged. This tool includes all of those fields, so the output meets the CRA's basic documentary requirements for invoices over the small-amount threshold.

Does my data get uploaded anywhere?

No. Every calculation runs in your browser and your draft is stored only in your own browser's local storage. Nothing is sent to a server.

Canadian Invoice Builder

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Canadian invoices, with the right tax on every line

Canada’s sales-tax system is split across three taxes — the federal GST, the combined HST used in several provinces, and standalone PST/QST/RST in others. Charging the wrong combination is the most common error on Canadian invoices. This builder applies the correct rate set for the destination province automatically, shows GST and PST as separate lines where required, and produces a clean invoice you can copy or print.

How it works

The tool stores the current rate table for each province and territory:

GST-only (5%): Alberta, NWT, Nunavut, Yukon.
HST: Ontario (13%), and New Brunswick, Newfoundland and Labrador, Nova Scotia, Prince Edward Island (15%).
GST + PST: British Columbia (5% + 7%), Saskatchewan (5% + 6%), Manitoba (5% + 7%), Quebec (5% GST + 9.975% QST).

It computes a subtotal from your line items (quantity × unit price), applies any discount, then calculates each applicable tax on the discounted subtotal. HST provinces show a single combined line; GST+PST provinces show two separate lines so the breakdown matches what your client expects. The grand total is the subtotal minus discount plus every tax.

Tips and notes

Quote your BN in the 123456789 RT0001 format if you are GST/HST registered — the RT extension identifies the GST/HST program account.
Quebec’s QST is calculated on the pre-GST amount under current rules, so it is applied to the discounted subtotal here, not on top of the GST.
Keep invoices for six years, the CRA’s standard record-retention period.
For zero-rated supplies (basic groceries, exports) set the rate-free option by choosing a GST-only province and a 0% override is not needed — simply omit taxable lines if the whole invoice is exempt.