Sales Tax in Saskatchewan: GST/HST/PST Guide for SK Small Business
Complete Saskatchewan sales tax guide. Current rates, registration thresholds, filing deadlines, and ITC rules.
If you operate a business in Saskatchewan or sell to Saskatchewan customers, you need to understand how sales tax works at both the federal and provincial level. Here's the 2026 playbook.
Current rates in Saskatchewan
Saskatchewan charges two separate taxes:
- Federal GST: 5.0%
- Provincial Sales Tax (PST): 6.0%
Combined rate: 11.0%. These are administered separately — you register and file with both CRA (GST) and Saskatchewan Finance (PST).
When must you register?
You must register for GST/HST if your worldwide taxable revenue exceeds CAD $30,000 in any 12-month period (calculated on a rolling basis).
Below that threshold, you're a small supplier and not required to collect GST/HST — but you also can't claim Input Tax Credits on your business expenses.
For Saskatchewan's PST, the registration threshold may differ — check with Saskatchewan Finance.
Input Tax Credits (ITC)
The core idea: when you pay GST/HST on business purchases, you claim it back on your return. If you collect $1,000 HST on sales and pay $400 HST on expenses, you remit only $600.
Save every receipt. Missed ITCs are silent tax increases.
Filing frequency
CRA assigns frequency based on revenue:
- Annual: under $1.5M/year (with optional quarterly installments)
- Quarterly: $1.5M–$6M/year
- Monthly: over $6M/year
Annual filers get a longer runway but must pay installments throughout the year to avoid interest.
How to register and file
1. Register for a Business Number with CRA at saskatchewan.ca/government/taxes-and-tax-credits
2. Add a GST/HST program account to your BN
3. Collect tax at the correct rate on every taxable sale
4. Track ITCs from business purchases
5. File GST34 (federal) and any applicable provincial return by your assigned deadline
Common mistakes
- Waiting too long to register after crossing $30k threshold (you still owe tax on sales in the registration period)
- Charging the wrong provincial rate — Canada is destination-based, you charge the customer's rate
- Missing ITC claims due to poor receipt tracking
- Forgetting digital/remote seller rules (new non-resident rules apply since 2021)
How TinSuite handles this
- Auto-tracks your revenue against the $30k threshold and alerts you when to register
- Applies correct GST/HST/PST for every Saskatchewan transaction (destination-based)
- Records ITCs from your connected bank transactions automatically
- Generates GST34 returns ready to submit to CRA
- Bilingual EN/FR-CA interface for Saskatchewan users
Start your free trial — 14 days, no credit card. Or see the full Canadian tax guide.