BC PST, Saskatchewan PST and Manitoba RST — What a New Business Owner Needs to Know

With BC PST, Saskatchewan PST and Manitoba RST compared side by side, one thing stands out fast: none of these three taxes work like South African VAT, and running a business in any of these provinces without understanding that will cost you a compliance headache eventually.

British Columbia, Saskatchewan and Manitoba all layer a separate provincial sales tax on top of the federal 5% GST, rather than folding it into a single combined rate the way Ontario or the Atlantic provinces do with HST. That means two separate tax registrations, two separate returns and two separate sets of rules to understand — not one system with a single number attached.

The three rates and what they’re called

British Columbia charges 7% PST on top of 5% GST, for a combined 12%. Saskatchewan charges 6% PST on top of 5% GST, for 11% combined. Manitoba calls its version RST — Retail Sales Tax — at 7%, again on top of 5% GST, also landing at 12% combined. Same underlying structure across all three, different names and Manitoba’s naming choice trips people up more than the others, since “RST” doesn’t sound like it belongs in the same family as “PST” even though it functions the same way.

Do you need to register for PST in British Columbia?

If you’re selling taxable goods or certain services in BC, generally yes — registration is required before you start collecting. The specific thresholds and categories of what counts as taxable under BC’s PST rules are detailed enough that they’re worth confirming directly with the BC government’s own PST registration guidance rather than assuming your product or service is or isn’t covered.

What’s the actual difference between PST and RST?

Functionally, very little — both are provincial sales taxes charged on top of GST, collected by the business and remitted to the provincial government rather than the CRA. The difference is largely naming convention and the specific administrative details of each province’s system rather than a fundamentally different tax structure.

Manitoba’s registration obligation

On which businesses must collect Manitoba RST: businesses selling taxable goods or services in the province generally need to register and collect it, similar in principle to BC’s PST obligation. As with BC, the specific categories and thresholds are a matter for Manitoba’s own tax authority guidance rather than something to assume from general principles.

Filing in Saskatchewan

On how do you file a Saskatchewan PST return: registered businesses file with Saskatchewan’s tax authority on a schedule set at registration — this is provincial, separate entirely from your federal GST filing with the CRA and missing one doesn’t excuse the other.

Do you charge PST on top of GST?

Yes — in all three provinces, PST or RST is calculated and charged in addition to the 5% federal GST rather than instead of it or included within it. A customer in these provinces sees both taxes reflected in their combined rate, whether shown as separate line items or a single total, depending on how the business presents it.

The one habit that saves the most trouble

Register for both federal and provincial tax obligations at the outset, rather than assuming GST registration alone covers you in these three provinces. Confirm your specific product or service category against each province’s own current guidance before you start charging anything — provincial tax authorities publish this directly and it’s the authoritative source over any summary, including this one.

We’re building out more content on running a small business as a newcomer — check our guides section for updates as it grows.