Sales tax in Canada has two layers: a federal layer that applies everywhere, and a provincial layer that changes depending on where you operate. If your business touches both Alberta and British Columbia, that second layer is where things get interesting, because the two provinces handle it very differently.
The federal layer: GST applies everywhere
Every business in Canada deals with the federal Goods and Services Tax, or GST, which is charged at 5 percent. Once your taxable revenue crosses the small supplier threshold, generally 30,000 dollars over four consecutive calendar quarters, you are required to register for GST, charge it on your sales, and file returns. This part is the same whether you are in Calgary, Edmonton, or Kelowna.
Alberta keeps it simple
Alberta is one of the few provinces with no provincial sales tax at all. For a business operating in Calgary or Edmonton, that means sales tax comes down to a single thing: GST. You charge 5 percent, you file your GST returns, and that is the whole picture. It is one of the quiet advantages of running a business in Alberta, and it is part of why compliance here is more straightforward than in most of the country.
BC adds PST on top
British Columbia is a different story. On top of the federal GST, BC charges its own Provincial Sales Tax, or PST, at a general rate of 7 percent. So a business selling taxable goods in Kelowna is often dealing with both: 5 percent GST and 7 percent PST. They are separate taxes, with separate registrations, separate returns, and separate rules about what is taxable.
PST does not apply to everything. Many services are exempt, while most goods are taxable, and the details are not always obvious. In general, once you are selling taxable goods or services in BC, you need to register for and collect PST, though there are limited exceptions for very small sellers. Getting this wrong is a common and costly mistake.
Why this matters if you cross provincial lines
If your business is based in Alberta but you sell to customers in BC, or you expand from one province to the other, the sales tax rules can change underneath you. Where your customer is, what you are selling, and how you are selling it all affect what you are supposed to charge and remit. This is one of the areas where businesses accidentally fall offside simply because they assumed the rules followed them across the border.
What to do next
A few practical steps will keep you on solid ground:
- Confirm whether you are required to register for GST, and PST if you operate in BC
- Make sure your invoicing and bookkeeping separate the two taxes correctly
- Review what you sell against what is actually taxable in each province
- Set aside what you collect, since it is not your money to spend
Sales tax is one of those things that is simple until it is not. If you are unsure what applies to your business, that is exactly the kind of question we are glad to sort out. It is far cheaper to get it right up front than to fix it later.