Alberta Sales Tax (GST) Guide (2026)
Alberta is Canada's lowest-tax province: no provincial sales tax, just the 5% federal GST. Registration is required once revenue passes CAD $30,000.
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Key Takeaways
Alberta has no provincial sales tax — only the 5% federal GST applies, the lowest combined rate of any Canadian province. Register for GST once taxable revenue exceeds CAD $30,000 over four consecutive calendar quarters. Basic groceries, prescription drugs, and many medical devices are zero-rated; SaaS and digital products are taxable under GST.
Taxability Snapshot
SaaS
Taxable
Digital Goods
Taxable
Groceries
Zero-rated
Sales Tax Rates
Alberta has no provincial sales tax. Only the 5% federal GST applies, making Alberta's combined rate the lowest of any Canadian province.
Component | Rate | Scope |
|---|---|---|
Federal GST | 5% | Canada-wide |
Provincial sales tax | none | Alberta has no PST |
Combined | 5% | Alberta |
Registration & nexus threshold
Alberta has no provincial sales tax to register for. You only register for the federal GST, which is required once your taxable revenue exceeds CAD $30,000 over four consecutive calendar quarters. Non-resident digital businesses register under the simplified GST/HST regime at the same threshold.
How to register for GST in Alberta:
Confirm you've crossed CAD $30,000 in taxable sales over four consecutive quarters.
Gather your details — business name, Business Number, and activity.
Register with the CRA for a GST/HST account.
Receive your account and assigned filing frequency.
Begin charging 5% GST and file with the CRA.
Filing frequency & deadlines
The CRA assigns monthly, quarterly, or annual GST filing based on revenue. Monthly and quarterly returns are due one month after the reporting period; annual filers generally have three months.
Exemptions
Basic groceries, prescription drugs, and many medical devices are zero-rated. With no provincial sales tax, only the 5% GST applies to taxable goods and services. SaaS and digital products are subject to GST.
Resale & Exemption Certificates
Alberta has no provincial sales tax, so there are no provincial resale or exemption certificates. A GST/HST registrant recovers the tax paid on goods bought for resale and other business inputs by claiming input tax credits on its return [5].
Penalties
Filing GST late carries the CRA penalty of 1% of the amount owing plus 25% of that 1% for each full month the return is late, up to 12 months, plus interest.
Audits & Appeals
The CRA audits GST in Alberta. To dispute an assessment, file a Notice of Objection (Form GST159) within 90 days of the assessment date; if still unsatisfied, appeal to the Tax Court of Canada [6].
Sources
[1] Canada Revenue Agency — GST/HST rates (Alberta: 5% GST, no provincial tax)
[2] Canada Revenue Agency — When to register for and charge GST/HST ($30,000 threshold)
[3] Canada Revenue Agency — GST/HST for digital economy businesses
[4] Canada Revenue Agency — GST/HST filing and remitting deadlines
[5] Canada Revenue Agency — Type of supply (zero-rated groceries, input tax credits)
[7] Government of Alberta — Taxes and levies (no provincial sales tax)
Verified July 2026 against Canada Revenue Agency and Government of Alberta guidance.
Frequently asked questions
Just 5% — the federal GST. Alberta has no provincial sales tax, the lowest combined rate in Canada.
Once your taxable revenue exceeds CAD $30,000 over four consecutive calendar quarters. There is no separate provincial registration.
No. Alberta has no PST, so only the 5% federal GST applies.
SaaS is subject to the 5% federal GST. There is no additional provincial tax in Alberta.
Monthly and quarterly returns are due one month after the period; annual filers generally have three months.
No. Basic groceries and prescription drugs are zero-rated, so no GST applies.
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