GST/HST Place of Supply Rules in Canada Explained

You are a bookkeeper at a CPA firm in Mississauga. Your client, a 12-person IT consulting firm, just landed a contract with a client in British Columbia. They ask: do we charge 5% GST or 12% HST? The answer depends on the place of supply rules - and getting it wrong means a reassessment from CRA. Canada's GST/HST place of supply rules determine which province's tax rate applies to a transaction. Understanding these rules is critical for anyone charging GST/HST in Canada, whether you run a small business, work for a municipal government, or manage client files at an accounting firm.

Why Place of Supply Rules Matter for Your Bottom Line

Mistakes in place of supply are one of the most common triggers for CRA audit adjustments. If you charge the wrong rate, you might owe additional tax plus penalties and interest. Worse, if you undercharge, the CRA can hold you responsible for the difference even if the customer refuses to pay. For accounting firms, getting this wrong for a client means re-filing returns and explaining the error to a client who expected you to know the rules.

For small businesses, the stakes are simpler: every invoice must state the correct tax amount. A mismatch can delay payment when the client's own accounting software flags the invoice as incorrect. Municipal finance teams face similar issues when purchasing goods or services from out-of-province vendors - they need to know whether to claim input tax credits or pay HST.

The Core Rule: Where Is the Supply Made?

The place of supply rules are set out in the Excise Tax Act and are based on the location of the recipient or the use of the property, depending on the type of supply. The general principle is that you charge the GST/HST rate of the province where the supply is considered to be made. The rules differ for goods, services, and intangible personal property.

Goods

For tangible goods, the place of supply is generally where the goods are delivered or made available to the purchaser. If you sell and deliver a physical product from Ontario to a customer in Alberta, you charge 5% GST (Alberta's rate) because the goods are delivered in Alberta. However, if the customer picks up the goods at your Ontario location, you charge 13% HST (Ontario's rate). This is straightforward for most transactions but becomes tricky when goods are shipped from one province to another, especially if the seller offers free shipping.

Services

Services are more complex. The default rule is that the place of supply is the province where the service is performed or where the recipient is located - depending on the type of service. For consulting services, the rule is usually the province in which the recipient is located (based on the recipient's address). For our IT consulting firm above, if the client is in BC, you charge 5% GST regardless of where the consultant sits. However, if the service involves real property (like construction), the place of supply is where the property is located. Similarly, services related to personal property (e.g., repairs) are generally supplied where the property is located at the time of service.

Intangible Personal Property

For intangible property like software licenses, copyrights, or digital products, the place of supply is generally the recipient's province of residence. This means if you sell a software license to a customer in Nova Scotia, you charge 15% HST even if your office is in Alberta.

Special Cases and Provincial Nuances

Canada has five provinces that participate in the HST (Ontario, New Brunswick, Newfoundland and Labrador, Nova Scotia, and Prince Edward Island), plus Quebec and the three territories. Each has its own rate, and some have specific rules for certain services.

The Four Participating Provinces (HST)

The HST rates are 13% in Ontario, 15% in the Atlantic provinces (NB, NL, NS), and 15% in PEI as of 2025 (note: PEI's rate is 15% as of Oct 1, 2024; always verify current rates). Quebec does not participate in HST but levies its own QST at 9.975% plus 5% GST for a combined rate of 14.975%. The territories (YT, NT, NU) use 5% GST only.

Quebec and PST

Quebec's QST is essentially a separate tax, but the place of supply rules for QST mirror the GST/HST rules. The seller must register separately for QST if they have a permanent establishment in Quebec or meet certain thresholds. For businesses outside Quebec, there is a no-review threshold of $30,000 in annual sales to Quebec customers; below that, you likely do not need to register. For services provided to Quebec customers from outside, the place of supply is usually Quebec if the customer is in Quebec, so you must charge QST if you are registered. This creates a compliance burden for small businesses that cross the threshold.

Streamlined Rules for Certain Services

Some services have simplified rules. For example, telecommunications services are taxed based on where the customer's billing address is. Transportation services are taxed based on the origin and destination. The CRA provides a comprehensive guide, but the nuances are many.

Common Pitfalls in Applying Place of Supply Rules

The most common error is assuming the rate of the seller's province applies. A Toronto-based consultant who serves clients across Canada should charge the rate of each client's province, not Ontario's 13%. Another pitfall is confusing the place of performance with the place of recipient location. For services, the rule often depends on whether the service is related to real property (location-based) or is a general service (recipient-based).

Consider a scenario: your client is a landscaping company based in Ontario but does work at a cottage in Nova Scotia. The service is performed in Nova Scotia, so the place of supply is Nova Scotia, and you must charge 15% HST. If you charged Ontario HST (13%), you would be short by 2%, and the CRA would assess the difference.

Another common issue is digital products. If you sell an e-book from an office in Alberta to a customer in PEI, you must charge 15% HST (PEI's rate), not 5% GST. Many small business owners mistakenly charge their own rate, leading to audit exposure.

How to Automate GST/HST Compliance in Your Practice

Manually looking up rates for each transaction is error-prone and time-consuming. Accounting firms that manage multiple clients with interprovincial sales especially need a systematic approach. Generic accounting tools often require manual entry of tax codes per transaction, leaving room for mistakes.

Awditify's tax engine automates this process. The platform's sales tax feature allows you to configure tax rules based on the place of supply. When you create an invoice, Awditify checks the customer's address and the type of supply, then applies the correct GST/HST rate automatically. This eliminates guesswork and reduces the risk of CRA penalties.

For CPA firms, Awditify's practice management capabilities help you oversee multiple clients' compliance. You can set up standardized tax rules for each client type and run reports to verify tax collected matches expectations. Municipal finance teams also benefit from Awditify's municipal features, which include property tax billing and utility billing - where place of supply rules are less relevant but still important for purchases.

Frequently Asked Questions

What are the GST/HST place of supply rules in Canada?

The place of supply rules are a set of criteria in the Excise Tax Act used to determine which province's GST/HST rate applies to a taxable supply. The rules vary by the type of supply: goods, services, or intangible personal property. They ensure that the province where the supply is considered to be made collects the appropriate tax.

How do I determine the place of supply for services?

For most general services, the place of supply is the province of the recipient's address. For services related to real property (construction, repairs), it's where the property is located. For services related to personal property (repairs), it's where the property is at the time of service. Always check for specific exceptions like transportation or telecommunications.

Which provinces charge HST and what are the rates?

Ontario charges 13% HST, New Brunswick charges 15%, Nova Scotia charges 15%, Newfoundland and Labrador charges 15%, and Prince Edward Island charges 15% (as of 2025; verify current rates). Quebec charges 5% GST plus its own QST (9.975%), totaling 14.975% for most supplies. British Columbia, Alberta, Saskatchewan, Manitoba, and the territories use 5% GST only (with some PST in SK and MB).

What is the difference between GST and HST place of supply rules?

There is no difference in the place of supply rules themselves. The same rules apply to determine both GST and HST rates. The difference is the rate applied: GST is 5% (or 5% in HST provinces on items not included in the HST base), while HST is the combined federal and provincial rate. The rules tell you which province's system applies; then you use the correct rate.

How can I automate GST/HST place of supply compliance?

You can automate compliance with software that integrates tax rate determination into your invoicing process. Awditify's sales tax tools automatically calculate the correct GST/HST based on the customer's address and transaction type. This reduces errors and saves time, especially for businesses with many cross-province transactions. Awditify also flags when a supply might require QST registration.

What to Do Next

Getting GST/HST place of supply right is not optional - it is a compliance requirement that affects your cash flow and your relationship with the CRA. The best approach is to set up a system that applies the rules automatically rather than relying on manual lookup every time you issue an invoice. Awditify's tax engine handles the complexity so you can focus on growing your business or serving your clients.

See how Awditify for small business automates sales tax across Canada. If you manage multiple clients, explore Awditify for accounting firms to centralize compliance. Book a demo to see the platform in action.