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Saskatchewan bookkeeping requirements start with a PST number. If you sell taxable goods or services in the province you must be licensed with the Ministry of Finance, collect 6% PST on top of the 5% GST, and keep complete records that you may not destroy until they’re at least six years old.
Do I need a PST number in Saskatchewan?
Most businesses that sell taxable goods or services do. The province says businesses operating in Saskatchewan must register for a PST number, and depending on what you do you’re issued either a vendor’s licence or a registered consumer number. You can apply through the province’s online tax service (SETS), and a business already registered for another provincial tax can add PST to its existing account.
This is the part outsiders trip over. A business in Alberta pays no provincial sales tax at all, while here the second tax line is real and it has its own return. The CRA still handles GST and payroll, so you’ll deal with two tax offices.
What does PST add to a sale?
Take a $1,000 sale. Our GST and PST calculator shows $50 GST and $60 PST for a $1,110 total, an 11% combined rate. The two are separate lines on your invoice and in your books, and you pay them to different offices.
| Item | Saskatchewan rule | Who sets it |
|---|---|---|
| PST rate | 6% on taxable goods and services used in the province | Ministry of Finance |
| GST rate | 5% | CRA |
| PST registration | Vendor’s licence or registered consumer number | Ministry of Finance |
| PST records | Keep complete records, destroy only when at least six years old | Ministry of Finance |
| CRA records | Six years from the end of the last tax year they cover | CRA |
Not every item carries PST. Some goods and services are exempt, and the province publishes bulletins by topic. We haven’t listed the exemptions here, so look up your own product before you set up your tax codes.
How should Saskatchewan records be kept?
The province expects complete records of all your business transactions, and its audit staff review vendors on a routine basis. When tax hasn’t been properly accounted for, the business is assessed the tax plus penalty and interest. That’s the real reason to keep clean books: not tidiness, but an audit you can answer in one afternoon.
At minimum you want sales invoices showing PST and GST separately, purchase receipts, bank statements, payroll records and your filed returns. The CRA adds that records belong at your place of business or home in Canada unless it gives written permission otherwise, and electronic copies are accepted when they stay readable.
What will a small Saskatchewan corporation pay?
An example helps if you’re incorporated. A Canadian-controlled private corporation with $400,000 of active business income and no associated companies comes out at $36,000 federal and $4,000 provincial in our corporate tax calculator. That’s $40,000, or 10% combined.
Treat the provincial part with caution. The calculator uses a 1% small business rate and a $600,000 limit that we took from provincial information we couldn’t fully confirm, so read the current rate on the provincial and CRA pages before you plan around it. The tool also skips passive income rules and credits. And if you pay yourself a wage, the payroll deductions calculator covers that side.
Mistakes that cost money
Forgetting PST costs you personally.
Charging GST but forgetting PST is the classic one. It’s your money when the audit finds it, because you can’t go back to customers for the difference. Another is throwing out paper receipts at year end. A third is mixing PST collected into your general income, so nobody sees what belongs to the province.
Old advice online claims a Saskatchewan law spells out how to categorize each transaction. We found none. What exists is the PST licence, the record rules and the CRA’s requirements. If you’re unsure whether something is taxable, phone the Ministry of Finance inquiry centre, whose number is on the PST page.
Where the numbers come from
The 6% rate, registration rules and record wording are from the Government of Saskatchewan’s PST pages and its PST-5 bulletin, read in September 2026. Retention and storage rules come from the CRA, and calculator figures from our 2026 data files. This site has no link with any government body.
Frequently asked questions
Do I need a PST number in Saskatchewan?
Businesses operating in the province must register with the Ministry of Finance to get a PST number, either a vendor's licence or a registered consumer number.
What is the PST rate in Saskatchewan?
6% on taxable goods and services used in the province. GST of 5% is charged separately.
How long do I keep records in Saskatchewan?
The province says records at least six years old may be destroyed without permission. The CRA also uses six years from the end of the last tax year.
Can I keep my records on a computer?
The CRA accepts electronic records that stay readable and accessible in Canada. Check the PST-5 bulletin if you have questions about PST records.
What happens if PST is not collected properly?
The business is assessed the tax owing plus penalty and interest after an audit.
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How Saskatchewan income tax works in 2026: three brackets from 10.5%, a large basic personal amount, the 6% PST and the calculators that switch to it
Information only. This page is general information, not tax, legal or accounting advice. Tax-Services.ca is an independent publisher: we don't prepare or file tax returns or offer tax services, and we have no connection with the CRA, Revenu Québec, any government or any company named on this page. Check the figures that matter with an official source or a qualified professional.