Key Takeaways
- 1.Saskatchewan charges 6% PST on most professional services since March 23, 2017 — legal, accounting, engineering, IT, and SaaS are all taxable.
- 2.PST and GST are applied independently to the same pre-tax base — the combined rate on taxable services is 11%, not compounded.
- 3.Residential construction labour on real property is PST-exempt, but materials are taxable — commercial construction labour is fully taxable at 6%.
- 4.Used vehicles are taxed at 6% PST whether purchased privately or from a dealership — private sales are assessed at SGI registration.
- 5.Health, dental, financial, and educational services remain PST-exempt — a $5,000 financial advisory fee carries zero PST.
What Changed in 2017: The PST Expansion
Before March 23, 2017, Saskatchewan's 6% PST applied mainly to tangible goods and a narrow list of services like telecommunications and accommodation. The 2017 provincial budget dramatically expanded the taxable base to include most professional and commercial services — a move that added an estimated $300 million in annual provincial revenue.
The services newly brought into the PST net included legal, accounting, engineering, architectural, IT consulting, software licensing, cloud computing, management consulting, and employment agency services. The rate stayed at 6%, but the breadth of coverage changed overnight. Businesses that had never collected PST on their invoices were suddenly required to register, charge, and remit.
For Saskatchewan business owners comparing their total tax burden to other provinces, our Alberta vs Ontario Income Tax Comparison illustrates how the gap compounds when you layer provincial sales tax on top of income tax differences.
Worked Example 1: $10,000 Legal Bill
A Saskatchewan business hires a law firm for contract review and litigation support. The firm invoices $10,000 in fees. Here is the full tax breakdown:
| Line Item | Amount |
|---|---|
| Legal fees | $10,000.00 |
| GST (5%) | $500.00 |
| Saskatchewan PST (6%) | $600.00 |
| Total invoice | $11,100.00 |
Before 2017, this same invoice would have been $10,500 (fees plus GST only). The PST expansion added $600 to the cost. For a business that spends $50,000 or more annually on legal services, that is an additional $3,000+ per year in non-recoverable PST — unlike GST, which registered businesses can claim back as input tax credits, Saskatchewan PST paid on business inputs is a hard cost with no credit mechanism.
No input tax credit for PST: GST-registered businesses can recover the $500 GST through input tax credits on their GST return. The $600 PST is non-recoverable — it is a final cost to the business. This makes Saskatchewan PST on services a true cost increase, not a pass-through tax.
Worked Example 2: $5,000 Accounting Invoice
A small business owner receives a year-end accounting invoice for $5,000 covering tax preparation, financial statement compilation, and advisory services.
| Line Item | Amount |
|---|---|
| Accounting fees | $5,000.00 |
| GST (5%) | $250.00 |
| Saskatchewan PST (6%) | $300.00 |
| Total invoice | $5,550.00 |
The $300 PST is straightforward on a clean accounting invoice. Where it gets complicated is when a firm bundles taxable services (accounting, tax prep) with potentially exempt services (financial planning advice). If a single invoice includes both PST-taxable and PST-exempt services, the vendor must separately itemize them — otherwise PST applies to the full amount.
Saskatchewan retirees managing their tax obligations on investment income should also see our RRSP Meltdown Strategy Calculator for Saskatchewan Retirees for province-specific withdrawal strategies.
Worked Example 3: $2,500 Annual SaaS Subscription
A Saskatchewan marketing agency subscribes to a project management SaaS platform at $208.33/month ($2,500/year). The vendor is based in Ontario.
| Line Item | Monthly | Annual |
|---|---|---|
| SaaS subscription | $208.33 | $2,500.00 |
| GST (5%) | $10.42 | $125.00 |
| Saskatchewan PST (6%) | $12.50 | $150.00 |
| Total cost | $231.25 | $2,775.00 |
The out-of-province vendor must register for Saskatchewan PST and collect the 6% on every invoice to a Saskatchewan customer. If the vendor fails to collect, the Saskatchewan business is legally required to self-assess and remit the PST directly to the Ministry of Finance. Many international SaaS vendors (particularly US-based) still do not collect Saskatchewan PST, leaving the self-assessment obligation with the buyer.
For a business running five or six SaaS subscriptions, the uncollected PST adds up quickly. A $15,000 annual SaaS spend carries $900 in PST — enough to trigger audit scrutiny if it goes unreported.
Construction Labour: The Exemption Edge Cases
Construction is where Saskatchewan PST gets genuinely confusing. The rules distinguish between labour on real property (buildings, permanent structures) and labour on tangible personal property (equipment, machinery), and between residential and commercial projects.
Residential Construction Labour: Exempt
Labour for new home construction, home renovations, and residential repairs performed on real property is PST-exempt. A contractor charging $30,000 in labour for a kitchen renovation does not add PST to the labour portion. However, all materials — cabinets, countertops, tiles, fixtures — are taxable at 6%. If the contractor purchases materials and marks them up on the invoice, PST applies to the material cost charged to the homeowner.
Commercial Construction Labour: Taxable
Labour for commercial, industrial, and institutional construction projects became taxable at 6% after the 2017 expansion. A $200,000 commercial renovation invoice that splits $120,000 labour and $80,000 materials owes PST on both portions — $12,000 total in PST versus $4,800 if only materials were taxable.
| Project Type | Labour PST | Materials PST | PST on $100K Job (60/40 split) |
|---|---|---|---|
| New residential home | Exempt | 6% | $2,400 |
| Home renovation | Exempt | 6% | $2,400 |
| Commercial buildout | 6% | 6% | $6,000 |
| Industrial facility | 6% | 6% | $6,000 |
The $3,600 gap between residential and commercial PST on a $100,000 project is significant. Mixed-use buildings (ground-floor commercial, upper-floor residential) require contractors to allocate labour and materials proportionally — a common source of audit disputes.
Used Vehicles: Private Sale vs. Dealership PST
Saskatchewan charges 6% PST on all vehicle purchases. The rate is identical whether you buy from a dealership or a private seller — what differs is the collection method.
| Purchase Channel | Vehicle Price | PST (6%) | GST (5%) | When Collected |
|---|---|---|---|---|
| Dealership | $20,000 | $1,200 | $1,000 | At point of sale |
| Private sale | $20,000 | $1,200 | N/A | At SGI registration |
Private sales have one advantage: no GST. A private seller is not a GST registrant (unless they are in the business of selling vehicles), so the buyer pays only the 6% PST — $1,200 on a $20,000 vehicle versus $2,200 (PST + GST) at a dealership. The PST is assessed on the purchase price or fair market value, whichever is higher, when you register the vehicle at an SGI office.
For more on how vehicle-related taxes interact with other provincial levies, our Manitoba RST Calculator 2025 covers the neighbouring province's approach to used-vehicle RST, including the Red Book valuation rule that Saskatchewan does not use.
How Saskatchewan PST and GST Interact on a Business Return
Saskatchewan businesses file PST and GST on completely separate returns to separate governments. This dual-track system is a key difference from HST provinces (Ontario, Atlantic Canada) where a single return covers both taxes.
- GST return: Filed with the Canada Revenue Agency (CRA). GST collected on sales minus GST paid on business purchases (input tax credits) = net remittance.
- PST return: Filed with Saskatchewan Ministry of Finance. PST collected on taxable sales = full remittance. No input tax credits — PST paid on business purchases is a cost, not a credit.
This asymmetry is the most important practical difference. A Saskatchewan law firm that collects $60,000 in PST on its billings and pays $8,000 in PST on its own purchases (office supplies, software, telecom) remits the full $60,000. The $8,000 in PST paid is an operating expense, not an offset. On the GST side, the same firm would claim back the GST paid on those purchases as input tax credits.
Businesses operating across multiple provinces with different tax systems should also review our Quebec QST + GST Calculator for Small Businesses — Quebec's QST system does allow input tax refunds, making it structurally different from Saskatchewan PST despite both being separate provincial taxes.
Quick-Reference: 15 Most-Searched Service Categories
The following table covers the service categories Saskatchewan residents and businesses search for most frequently. All taxable services are subject to the standard 6% PST rate.
| Service Category | PST Status | Notes |
|---|---|---|
| Legal services | Taxable | All lawyer fees, notary services |
| Accounting / bookkeeping | Taxable | Tax prep, audit, advisory |
| IT consulting / software dev | Taxable | Custom development, system integration |
| SaaS / cloud subscriptions | Taxable | SaaS, PaaS, IaaS — any delivery model |
| Engineering / architecture | Taxable | Design, inspection, project management |
| Management consulting | Taxable | Strategy, HR consulting, operations |
| Telecommunications | Taxable | Phone, internet, cable — taxable pre-2017 too |
| Commercial cleaning | Taxable | Janitorial, commercial pest control |
| Residential construction labour | Exempt | Labour on real property only; materials taxable |
| Health / dental services | Exempt | Physicians, dentists, chiropractors, physio |
| Financial services | Exempt | Bank fees, investment advice, insurance brokerage |
| Childcare | Exempt | Licensed daycare, in-home childcare |
| Education / tutoring | Exempt | Tuition, private tutoring, training courses |
| Real estate commissions | Exempt | Agent and broker commissions on property sales |
| Haircuts / personal care | Taxable | Barber, salon, spa, esthetics services |
The most common surprise on this list is personal care services. Many Saskatchewan residents do not realize their haircut includes 6% PST. A $40 haircut costs $42.40 after PST (plus $2.00 GST for $44.40 total). Over a year of monthly haircuts, that is $28.80 in PST alone.
For a province-by-province comparison of how sales taxes affect overall purchasing power, our Ontario Income Tax Take-Home Analysis shows how Ontario's 13% HST interacts with income tax to determine real disposable income.
Important Disclaimer
This article provides general information based on Saskatchewan PST rates, exemption categories, and filing requirements as published by the Saskatchewan Ministry of Finance at the time of writing. The 2017 PST expansion rules, construction labour exemption boundaries, and vehicle PST assessment methods are simplified for illustrative purposes. Specific PST treatment varies by service type, contract structure, and client status — exemptions may apply to scenarios not covered here. Always verify current rates and exemptions with the Saskatchewan Ministry of Finance, and consult a qualified tax professional before making business or purchasing decisions based on this article. This is not legal, tax, or financial advice.