Sales tax registration is the administrative step that changes a creator from somebody doing occasional work into somebody running a business. In Canada it becomes mandatory at a revenue threshold, and there are reasons to do it earlier.

The small supplier threshold

Below a certain level of worldwide taxable revenue over four consecutive quarters, registration is optional. Cross it and registration becomes mandatory, with a short window to get it done. The threshold is measured on revenue, not on profit, and it arrives sooner than most creators expect.

What changes on the invoice

Once registered you charge the applicable tax on top of your fee and remit it. Your rate to the client effectively goes up by the tax, which is normally neutral for a business client who claims it back and is a real increase for an individual who cannot.

Why some register early

Registering lets you claim back the tax you paid on business purchases: camera, lights, phone, software, editing computer. A creator with real equipment spending is often better off registered even below the threshold, because the recoverable amounts are not trivial.

The rate depends on the client province

The federal and harmonised rates differ across the country, and which one applies depends on where the customer is. Getting this wrong on a national client list is a common and fixable bookkeeping error.

The practical version

Track revenue quarterly, register before you are forced to, and set the collected tax aside in a separate account rather than treating it as income. This is general information and not tax advice; an accountant is worth the one hour it takes.

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Frequently asked questions

When is registration mandatory?

Once you cross the small supplier threshold.

What does it change on invoices?

You charge the tax on top and remit it.

Why register early?

To claim back tax paid on equipment.

Which rate applies?

It depends on the client province.

Sources

Checked on 27 August 2026. Thresholds and rates change: where this guide and the official source disagree, the official source is right.