Provincial sales tax treatment of professional services is becoming increasingly important for organizations operating across Canada. While Manitoba and Saskatchewan have long imposed PST on a broad range of professional services, British Columbia’s 2026 budget proposal would significantly expand the province’s existing rules if enacted.
For organizations providing or purchasing professional services across multiple provinces, understanding how these rules compare is critical, as differences in taxability, registration requirements, and compliance obligations can create significant operational and administrative challenges.
Provincial sales tax (PST) in Manitoba, Saskatchewan, and British Columbia functions as a retail sales tax applied to taxable goods and specified taxable services. Manitoba and Saskatchewan already impose PST on a broad range of professional services, including legal, accounting, architectural, engineering and geoscience, security and private investigation, and other related services.
British Columbia has historically taxed legal services; however, through its 2026 budget, B.C. has proposed expanding PST to additional professional service categories effective October 1, 2026—subject to the budget legislation receiving Royal Assent.
The proposed changes move British Columbia closer to the approach already seen in Manitoba and Saskatchewan:
- Manitoba imposes RST at a general rate of 7%, calculated before GST, on most goods and certain services
- Saskatchewan imposes PST at 6% on taxable goods and services consumed or used in Saskatchewan, including certain imported goods and services
- British Columbia currently imposes PST at 7% and is proposing to expand the scope of taxable professional services beginning October 1, 2026
However, important differences remain in the scope of taxable services, the application of partial taxable bases, and the detailed compliance requirements that organizations and professional service firms will need to manage.
For organizations operating across provinces, the practical challenge is that each province defines taxable professional services differently, and applies its own registration, sourcing, billing, and compliance rules.
British Columbia
B.C. currently taxes legal services but generally does not tax most other professional services. Under the province’s 2026 budget proposal, PST would expand effective October 1, 2026, to include:
- Accounting services, including bookkeeping and assurance services
- Architectural services
- Engineering and geoscience services
- Security services, including private investigation services
- Non-residential real estate services, including trading services, rental property management services, and strata management services
The proposed rules would apply the general 7% PST rate. However, architectural, engineering, and geoscience services would only be taxable on 30% of the purchase price of those services.
B.C. has also indicated that providers of newly taxable services will be required to register, collect, and remit PST for taxable services sold on or after October 1, 2026, unless a specific exemption applies.
Planning Considerations
Although the proposal establishes the general framework, additional regulations, administrative guidance, and transitional rules are still expected. Organizations and professional service firms should begin evaluating:
- Engagement letter language
- Billing and invoicing processes
- Work-in-progress treatment
- Retainers and deposits
- Pre-October invoices and post-October collections
- System configuration changes related to PST collection and reporting
For many firms, the operational impact may extend beyond simply adding tax to invoices. Internal systems and processes may need to distinguish between taxable and exempt services, identify partially taxable services, and properly manage transitional billing scenarios.
Manitoba
Manitoba’s Retail Sales Tax (RST) applies at 7% to most goods and specified taxable services. Manitoba generally treats services as non-taxable unless they are specifically identified as taxable under legislation or regulation.
The province maintains a dedicated regulation governing taxable professional services: Taxation of Services (Accounting, Architectural, Engineering, Geoscientific, Legal, Private Investigation, Security and Security Monitoring) Regulation, M.R. 22/2005.
The regulation applies to:
- Accounting services
- Architectural services
- Engineering services
- Geoscientific services
- Legal services
- Private investigation services
- Security services
- Security monitoring services
The rules also include guidance relating to exemptions, exempt disbursements, partial exemptions, and determining when a service “relates to Manitoba.”
For architectural design services, Manitoba applies RST to services relating to Manitoba projects, including services provided by non-resident architects for Manitoba facilities or projects. Manitoba also applies a partial taxable-base approach by deeming taxable architectural design services to be 30% of specified design-phase services and related disbursements.
Manitoba separately publishes guidance regarding the application of RST to legal services.
Planning Considerations
A key feature of Manitoba’s rules is that taxability often depends on whether the service “relates to Manitoba,” rather than solely on the location of the service provider or client. As a result, non-resident service providers may still have Manitoba RST obligations where sufficient connection to the province exists
Saskatchewan
Saskatchewan imposes PST at 6% on taxable goods and services consumed or used in Saskatchewan, including taxable services purchased in the province and taxable services imported into the province for use
Compared to British Columbia’s proposed expansion, Saskatchewan already applies PST broadly across numerous professional and business services. Saskatchewan maintains separate PST guidance for categories including:
- Accounting services
- Legal services
- Engineering, geoscience, and architecture services
- Advertising services
- Employment placement services
- Commercial building cleaning services
- Real estate sales commissions (other than commissions related to new single-family dwellings and condominiums)
Saskatchewan defines engineering, geoscience, and architectural services by reference to the applicable provincial professional legislation. The province also requires businesses operating in Saskatchewan to register for PST purposes, while purchasers may be required to self-assess tax where suppliers do not collect it.
Planning Considerations
Saskatchewan’s approach remains broader than British Columbia’s proposed framework in several respects, particularly because Saskatchewan taxes additional business service categories such as advertising, employment placement, and commercial cleaning services.
Comparing the Provincial Sales Tax Approaches
| Issue | British Columbia | Manitoba | Saskatchewan |
|---|---|---|---|
| Legal Services | Already taxable | Taxable | Taxable |
| Accounting Services | Newly taxable effective October 1, 2026, if enacted | Taxable | Taxable |
| Architecture/Engineering/Geoscience | Tax applies to 30% of purchase price | Special partial-taxable-base rules; architectural design bulletin uses 30% of specified phases and disbursements | Taxable under professional service rules |
| Real Estate Services | Proposed for non-residential real estate services only | Not a core professional service category in the reviewed regulation | Taxable real estate services, including real estate sales commissions |
Practical Canada Sales Tax Compliance Considerations
Organizations operating across these provinces should evaluate how differing provincial rules affect registration, billing, tax determination, and reporting obligations. Key considerations include:
| Compliance Issue | Practical Relevance |
|---|---|
| Registration | Providers may need to register in each province where they provide taxable services connected to that province. B.C. providers of newly taxable services will need to register once the rules take effect. |
| Place-of-Supply/Connection Rules | Tax may apply based on whether the service relates to property, a project, litigation, a business activity, or another connection in the province, not merely where the provider is located. |
| Billing Systems | Systems must distinguish taxable and exempt services and apply partial-taxable-base rules, especially for architecture, engineering, and geoscience. |
| Disbursements | Disbursement treatment varies by province and service type; firms should separately track taxable fees, exempt disbursements, and taxable reimbursements. |
| Engagement Letters | Engagement terms should state whether PST/RST is extra to fees and allocate responsibility for future tax changes. |
| Self-Assessment | Purchasers may need to self-assess PST/RST where an out-of-province supplier does not collect tax on a taxable service. |
| Transitional Billing | This is especially important for B.C. services straddling October 1, 2026. |
What Organizations Should Be Evaluating Now
Manitoba and Saskatchewan already impose provincial retail sales tax on a substantial range of professional services. British Columbia’s proposed expansion, if enacted, would move the province closer to that broader model by extending PST to additional professional service categories beginning October 1, 2026.
While the direction of the rules may appear similar across provinces, the detailed application remains materially different—variations in taxable service categories, sourcing rules, partial taxable base calculations, and compliance obligations create complexity for organizations operating across jurisdictions. For many professional service firms and purchasers, the operational impact may extend well beyond tax calculation itself, requiring updates to systems, billing practices, contracts, and internal compliance processes.
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