Guide to Bookkeeping Compliance for Regina Businesses
GST and PST registration, filing deadlines, payroll remittances, WCB, and record retention — everything a Regina business owner needs to stay compliant in 2026.
Table of Contents
- 1. Regina's Compliance Landscape at a Glance
- 2. GST Registration & Filing
- 3. Saskatchewan PST Registration & Filing
- 4. Payroll Remittances & Source Deductions
- 5. WCB Registration
- 6. Municipal & Provincial Requirements
- 7. Record Retention Requirements
- 8. Monthly Compliance Checklist
- 9. Frequently Asked Questions
- 10. How Custom CPA Can Help
1. Regina's Compliance Landscape at a Glance
Running a business in Regina means navigating compliance obligations at three levels — federal (CRA), provincial (Saskatchewan Ministry of Finance and WCB), and municipal (City of Regina licensing). Unlike Alberta, which has no provincial sales tax, or HST provinces where a single combined tax applies, Saskatchewan operates GST and PST as two entirely separate systems with separate registrations, separate returns, and separate rules.
- Combined sales tax rate: 5% federal GST plus 6% Saskatchewan PST, for an effective 11% on most taxable goods and many services.
- No harmonization: Saskatchewan does not combine GST and PST the way HST provinces do — businesses collect and remit both separately.
- PST is not recoverable: Unlike GST, which businesses can recover through input tax credits, PST paid on business inputs is generally not recoverable.
- Broad service base: Since 2018 PST Act reforms, Saskatchewan's PST applies to many services that were previously exempt, including accounting and legal services, insurance premiums, and software-as-a-service (SaaS).
Not sure if your Regina business is fully compliant?
A short conversation with our local team can confirm your GST, PST, and payroll setup meets current requirements.
2. GST Registration & Filing
GST is administered federally by the CRA and applies uniformly across Canada, including Regina.
| Requirement | Detail |
|---|---|
| Registration threshold | Required once taxable revenue exceeds $30,000 over four consecutive calendar quarters (voluntary registration is available below this threshold) |
| GST rate | 5%, applied federally |
| Filing frequency | Monthly, quarterly, or annually, based on revenue and elections made with the CRA |
| Filing deadline | Generally one month after the reporting period for monthly and quarterly filers |
| Input tax credits (ITCs) | GST paid on eligible business inputs can be recovered through ITCs |
3. Saskatchewan PST Registration & Filing
Saskatchewan's Provincial Sales Tax is administered separately by the Saskatchewan Ministry of Finance and applies its own distinct set of rules.
| Requirement | Detail |
|---|---|
| Registration threshold | No dollar minimum — any business making taxable retail sales into Saskatchewan must register as a PST vendor, including out-of-province and online sellers |
| PST rate | 6%, applied provincially and layered on top of the 5% federal GST |
| Filing system | Filed through Saskatchewan's SETS (Saskatchewan Electronic Tax Service) portal |
| Filing deadline | Generally the 20th of the month following the reporting period |
| Recoverability | PST paid on business inputs is generally not recoverable — unlike GST, there is no input tax credit mechanism |
| Taxable services | Includes accounting and legal services, insurance premiums, real estate services, telecommunications, and SaaS/software since 2018 reforms |
Verify current rates and thresholds against CRA and Saskatchewan Ministry of Finance sources before relying on these figures for a specific filing, as administrative details can change.
4. Payroll Remittances & Source Deductions
Any Regina business with employees has additional recurring compliance obligations:
- CPP and EI deductions: Withheld from employee pay and remitted to the CRA along with the employer's matching portion.
- Income tax withholding: Federal and provincial income tax withheld from each pay period based on TD1 forms.
- Remittance frequency: Determined by the CRA based on the size of the employer's average monthly withholding amount — ranging from monthly to more frequent for larger remitters.
- T4/T4A slip preparation: Annual slips must be issued to employees and filed with the CRA, typically by the end of February following the calendar year.
5. WCB Registration
Saskatchewan's Workers' Compensation Board (WCB) registration applies to many Regina businesses, particularly in construction and other higher-risk industries:
- Mandatory for many sectors: Construction, manufacturing, and several other industries require WCB registration regardless of employee count.
- Premium calculation: Based on payroll and industry risk classification, remitted according to WCB's schedule.
- Coverage purpose: Provides workplace injury coverage and protects the business from direct liability for covered workplace injuries.
Managing payroll, WCB, and remittances across a growing team?
We help Regina businesses keep payroll compliance organized so nothing gets missed as the team grows.
6. Municipal & Provincial Requirements
Beyond federal and provincial tax obligations, Regina businesses may face additional local requirements:
- Business licensing: Municipal business licenses vary by business type and location within the City of Regina, and must be renewed on the applicable schedule.
- Property tax: Applicable to businesses that own commercial real estate, assessed by the City based on property value.
- Environmental compliance: Certain business types (particularly in Saskatchewan's significant agriculture, oil and gas, and resource sectors) face additional environmental reporting requirements.
- Industry-specific licensing: Professional services, food service, and other regulated sectors may require additional provincial or municipal licenses.
7. Record Retention Requirements
Both the CRA and Saskatchewan Ministry of Finance require businesses to retain adequate financial records for audit purposes:
| Record Type | Minimum Retention Period |
|---|---|
| GST/HST supporting documents | Minimum 6 years from the end of the tax year they relate to |
| General business financial records | Minimum 7 years, per common Saskatchewan CRA audit practice |
| Payroll records | Minimum 6 years, including T4/T4A slips and source deduction records |
| PST records | Detailed records required to support ITC-equivalent claims and exemption certificates |
Retention periods are general guidance; specific record types and circumstances can carry different requirements, so confirm with a professional for your situation.
8. Monthly Compliance Checklist
- Step 1 — Reconcile bank and credit card accountsEnsure all transactions are recorded and matched before proceeding to tax calculations.
- Step 2 — Calculate and set aside GST and PST owingTrack collected and payable amounts separately, since the two taxes are filed independently.
- Step 3 — Process payroll remittancesConfirm CPP, EI, and income tax withholdings are calculated correctly and remitted on schedule.
- Step 4 — Review WCB obligationsConfirm payroll figures used for WCB premium calculations are current and accurate.
- Step 5 — File GST and PST returnsSubmit the CRA GST return and the Saskatchewan PST return through SETS by their respective deadlines.
- Step 6 — Update the compliance calendarTrack upcoming deadlines for T4 season, corporate tax filing, and any license renewals.
Related reading from our team
9. Frequently Asked Questions
What is the combined sales tax rate for a Regina business?
Regina businesses generally charge 5% federal GST plus 6% Saskatchewan PST, for a combined 11% on most taxable goods and many services. The two taxes are administered and filed separately, unlike HST provinces where a single combined rate applies.
Do I need to register for PST if I'm a small or part-time business in Regina?
Yes — unlike GST, which has a $30,000 revenue threshold, Saskatchewan PST registration has no dollar minimum. Any business making taxable retail sales into Saskatchewan, including small, part-time, and online sellers, must register as a PST vendor.
Can I claim back the PST I pay on business purchases?
Generally, no. Unlike GST, which businesses recover through input tax credits (ITCs), PST paid on business inputs such as commercial rent, equipment, and professional services is generally not recoverable. This is a key difference from HST provinces where the provincial portion flows through the value-added chain.
Is software and SaaS taxable under Saskatchewan PST?
Yes. Since 2018 PST Act reforms expanded Saskatchewan's tax base, software and many digital services — including software-as-a-service (SaaS) used by Saskatchewan customers — are subject to PST, in addition to federal GST.
How long do Regina businesses need to keep their financial records?
The CRA generally requires GST/HST supporting documents to be kept for a minimum of 6 years, and many Saskatchewan businesses retain general financial and payroll records for 7 years as standard practice to support potential CRA audits.
10. How Custom CPA Can Help
Regina businesses face a genuinely more complex compliance environment than most of the country, given Saskatchewan's dual GST/PST system. Our local team supports Regina businesses with:
- Core accounting, bookkeeping, and GST/PST compliance
- Strategic CFO advisory for growing Regina businesses
- Specialized industry accounting for Saskatchewan's key sectors
- Business planning and financial modeling for local growth and financing
Ready to simplify your compliance in Regina?
Book a free consultation and we'll walk through your current GST, PST, payroll, and record-keeping setup.
