If you've ever wondered how much is GST in Canada, you're not alone. Whether you're a new business owner figuring out whether to register, a consumer trying to understand your receipt, or a small business operator unsure what to charge, Canadian sales tax rules can feel surprisingly complicated. The federal Goods and Services Tax (GST) sits at a flat 5%, but depending on your province and what you're selling, the total tax your customers pay — and the obligations you carry — can vary significantly. Here's everything you need to know for 2025.
GST stands for Goods and Services Tax. It is a federal tax administered by the Canada Revenue Agency (CRA) that applies to most commercial supplies of goods and services sold in Canada. The GST rate is 5%, and it has been at this level since 2008 when it was reduced from 6%.
GST applies broadly — retail products, professional services, construction, software subscriptions, and most other commercial transactions are all subject to it. The seller collects the tax from the buyer and remits it to the CRA.
Canada does not have a single national sales tax rate. Some provinces have harmonised their provincial sales tax with the federal GST to create the Harmonised Sales Tax (HST), while others maintain a separate Provincial Sales Tax (PST) alongside GST.
In these provinces, businesses charge and collect one combined HST rate rather than two separate taxes:
In British Columbia, Saskatchewan, and Manitoba, the provincial sales tax is administered separately from GST. For example, British Columbia charges 5% GST plus 7% PST, for a combined 12% on most purchases — but businesses register for and remit each tax independently.
Alberta is the only province in Canada with no provincial sales tax whatsoever. Alberta consumers and businesses pay only the 5% federal GST. This is a genuine competitive advantage for Alberta-based businesses. If you operate here, your pricing and compliance obligations are simpler: one tax, one rate, one remittance. It also makes Calgary and Edmonton attractive locations for businesses and higher-income earners compared to provinces where combined rates reach 13–15%.
Not everything is taxed at 5%. The CRA draws a clear line between zero-rated and exempt supplies, and the difference matters for your ability to claim ITCs.
Zero-rated supplies are technically taxable — but at a 0% rate. This means GST applies, it's just nil. Critically, suppliers of zero-rated goods can still claim ITCs on their inputs. Zero-rated supplies include:
Exempt supplies fall entirely outside the GST system. Suppliers do not charge GST, but they also cannot claim ITCs on related expenses. Common exempt supplies include:
If your business provides a mix of taxable and exempt supplies, you'll need to carefully allocate your expenses to determine which ITCs you can legitimately claim.
Registration for GST is mandatory if your total taxable revenues exceed $30,000 in any single calendar quarter, or in four consecutive calendar quarters. Once you cross this threshold, you must register with the CRA, begin charging GST on your taxable supplies, and file regular returns.
If your revenues remain below $30,000 over those periods, you qualify as a small supplier and registration is optional. Many small suppliers choose to register voluntarily — it allows them to claim Input Tax Credits (ITCs) on their business expenses, which can mean real money back at filing time.
Certain businesses must register regardless of revenue, including taxi and ride-sharing operators and non-resident digital service providers selling to Canadian consumers.
If you're a small service-based business, the CRA's Quick Method of accounting may save you time and money. Instead of tracking every ITC on every expense, you remit a flat percentage of your GST-included gross revenues directly to the CRA.
For most service businesses, the Quick Method rate is 8.8% on gross revenues (including the GST you charged). Because you remit less than the full 5% you collected, the difference becomes a built-in benefit — particularly for service businesses with low input costs.
To illustrate: if you invoice $10,700 in a quarter (including $500 GST at 5%), under the standard method you'd remit $500 minus ITCs. Under the Quick Method, you'd remit 8.8% × $10,700 = $941.60... wait — that's higher. The Quick Method is most advantageous when your qualifying revenues are lower relative to the remittance rate, or when your ITCs would be minimal. It is worth running the numbers both ways, ideally with an accountant, before electing this method.
Eligibility requires annual taxable revenues (including GST) of $400,000 or less, and the election must be made before the start of the fiscal year you want it to apply.
One of the most important concepts in GST compliance is the Input Tax Credit. When your registered business pays GST on goods or services acquired for commercial use, you can recover that GST through an ITC on your next GST return.
For example, if you're an Alberta-based consultant who pays $1,050 for business software (including $50 GST), you can claim that $50 back as an ITC, reducing the net GST you owe to the CRA. ITCs effectively make GST neutral for most registered businesses — you're collecting it from customers and getting back what you paid on inputs.
The key conditions: the expense must be for commercial activity, you must hold valid supporting documentation (invoices showing the supplier's GST number), and you must be a registered GST/HST registrant.
How often you file your GST return depends on your annual taxable revenues:
Annual filers often have the option to make quarterly instalment payments to spread their remittance across the year, which helps with cash flow planning. Missing filing deadlines results in interest charges and potential penalties from the CRA, so calendar reminders and organised bookkeeping are essential.
For Alberta businesses especially, the relatively clean GST-only environment means there's less complexity than in HST provinces — but the filing obligations remain, and late or inaccurate remittances are a common issue for growing businesses. The team at Swift Accounting Ltd. Calgary's bookkeeping services can help you stay on top of your remittance schedule.
A few straightforward practices will keep your GST compliance clean:
If your situation involves a mix of taxable and exempt supplies, international clients, or complex input allocations, professional guidance is worth the investment. Tax planning with an experienced accountant can also identify legal strategies to optimise your GST position over time.
If you'd like support with GST registration, filing, or planning, contact Swift Accounting Ltd. in Calgary — our team works with small businesses across Alberta to keep their CRA obligations on track.
The federal GST rate in Canada is 5% in 2025, unchanged since 2008. In provinces with HST (Ontario, Nova Scotia, New Brunswick, Newfoundland and Labrador, and PEI), the combined rate is 13% or 15%. Alberta charges only the 5% GST with no provincial sales tax.
No — if your total taxable revenues are under $30,000 over any four consecutive calendar quarters, you qualify as a small supplier and are not required to register or collect GST. You may register voluntarily if you want to claim Input Tax Credits on your business expenses.
Exempt supplies include most healthcare services, licensed childcare, long-term residential rent, and most financial services. Basic groceries, prescription drugs, and exports are zero-rated (taxed at 0%, but suppliers can still claim ITCs). Most other commercial goods and services are taxable at 5%.
GST (5%) is the federal Goods and Services Tax. HST (Harmonised Sales Tax) combines the federal GST with a provincial component into a single tax, collected and administered by the CRA on behalf of participating provinces. Ontario's HST is 13%; Nova Scotia, New Brunswick, Newfoundland and Labrador, and PEI are each 15%. Alberta has no HST — only the 5% GST applies.
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