GST/HST for Small Businesses in Canada 2026: Complete Guide
If you run a small business in Canada, understanding your GST/HST obligations is essential. Whether you are a sole proprietor, freelancer, or incorporated business, this guide covers everything you need to know for 2026: when you must register, how to file, what you can claim back, and the deadlines and penalties that apply.
The $30,000 Small Supplier Threshold
Not every business needs to register for GST/HST right away. The CRA uses a small supplier threshold of $30,000 in total taxable revenues over four consecutive calendar quarters. If your business earns less than $30,000 in worldwide taxable supplies over any four consecutive calendar quarters, you are considered a small supplier and are not required to register.
However, the moment you exceed $30,000 in a single calendar quarter or over four consecutive quarters, you must register for GST/HST within 29 days of the transaction that pushed you over the threshold — and start collecting tax from that point.
Who Must Register Regardless of Revenue?
The $30,000 threshold does not apply to all businesses. You must register for GST/HST regardless of revenue if you are a taxi or ride-share driver, if you sell new housing, or if you are a non-resident supplier of digital products or services to Canadian consumers.
Voluntary Registration
Even if your revenue is under $30,000, you can register voluntarily. This is often advantageous because it allows you to claim Input Tax Credits (ITCs) — recovering the GST/HST you paid on business expenses. If you are spending significantly on equipment, supplies, or services for your business, voluntary registration can result in meaningful refunds from the CRA.
GST/HST Rates by Province (2026)
The rate you charge depends on the province of supply — generally where your customer is located, not where your business operates. Current 2026 rates:
| Province / Territory | Tax Type | Rate |
|---|---|---|
| Alberta, BC, Manitoba, Saskatchewan, Quebec, territories | GST (+ separate PST/QST where applicable) | 5% GST |
| Ontario | HST | 13% |
| Nova Scotia | HST | 14% (reduced from 15% on April 1, 2026) |
| New Brunswick, Newfoundland and Labrador, PEI | HST | 15% |
If you sell to a customer in Ontario, you charge 13% HST. If you sell to a customer in Alberta, you charge 5% GST — even if your business is in Ontario. Always apply the rate for the customer's location.
Reporting Periods and Filing Deadlines
The CRA assigns your reporting period based on your annual taxable revenues. You can elect a more frequent period but cannot elect a less frequent one.
| Annual Taxable Revenue | Default Reporting Period | Filing and Payment Deadline |
|---|---|---|
| $1.5 million or less | Annual | 3 months after fiscal year-end (payment may differ — see below) |
| $1.5M to $6 million | Quarterly | 1 month after quarter end |
| Over $6 million | Monthly | 1 month after month end |
Important Exception — Annual Filers with December 31 Year-End
If you are an annual filer with a December 31 fiscal year-end and have business income for the year, your return is due June 15 but your payment is due April 30. This catches many small business owners: the CRA charges interest from April 30 on any unpaid balance, even if you file by June 15. If you expect to owe GST/HST, pay by April 30 even if the paperwork comes later.
How to File Your GST/HST Return in 2026
Electronic filing is mandatory for virtually all GST/HST registrants for reporting periods ending in 2024 and later. The main exceptions are charities and selected listed financial institutions (SLFIs). Filing on paper when not exempt results in a penalty of $100 for the first offence and $250 for subsequent offences.
Your filing options in 2026:
- CRA My Business Account (recommended): File directly through the CRA portal without needing an access code. Manage returns, payments, and account details in one place.
- GST/HST NETFILE: File online using a 4-digit access code and your Business Number. No CRA account needed.
- Third-party accounting software: File directly from software like QuickBooks or FreshBooks via GST/HST Internet File Transfer (requires access code).
- GST/HST TELEFILE: File by phone for eligible registrants.
Input Tax Credits (ITCs): Recovering the GST/HST You Pay
One of the most valuable aspects of GST/HST registration is the ability to claim Input Tax Credits (ITCs). An ITC allows you to recover the GST/HST you paid on eligible business expenses and purchases, reducing the net tax you remit to the CRA.
How it works: You collect GST/HST from your customers and pay GST/HST on your business purchases. You remit the difference to the CRA. If you paid more GST/HST on purchases than you collected from customers, the CRA owes you a refund.
Example: You collected $3,000 GST/HST from clients. You paid $800 GST/HST on business software, office rent, and equipment. Your net tax owing = $3,000 − $800 = $2,200.
What Qualifies for ITCs?
To claim an ITC, the expense must be used in your commercial activities. Common eligible expenses include office rent and utilities, equipment and computers, business software subscriptions, professional services (accounting, legal), vehicle expenses used for business, and advertising costs. Personal expenses are not eligible, and you must have receipts or invoices showing the GST/HST paid.
Penalties and Interest in 2026
The cost of non-compliance has never been higher. Current 2026 rates:
- Late-filing penalty: 1% of the unpaid net tax, plus 0.25% for each full month the return is late, up to 12 months (maximum 4% total).
- Interest on overdue amounts: 7% (Q1–Q2 2026), compounded daily from the day after payment was due. Rates are updated quarterly.
- Failure to file electronically: $100 first offence, $250 subsequent — applies even on nil returns.
- Mandatory electronic payment: Remittances of $10,000 or more must be made electronically or at a financial institution.
Voluntary Disclosure Program (VDP)
If your business has unreported GST/HST, the CRA's Voluntary Disclosure Program (updated October 1, 2026) provides relief. Unprompted disclosures receive 75% interest relief and 100% penalty relief. Prompted disclosures receive 25% interest relief and up to 100% penalty relief. Disclosures must cover the most recent four years of non-compliance.
How to Make GST/HST Payments
Options for remitting your GST/HST to the CRA:
- Online banking: Add "Federal — GST/HST Payment — GST-P" as a payee. Use your 15-digit Business Number as the account number.
- CRA My Business Account: Pre-authorized debit or online payment.
- Financial institution: In person using Form RC158 (Remittance Voucher).
- Cheque by mail: Payable to the Receiver General of Canada (not recommended for time-sensitive payments).
Note: Payments of $50,000 or more must be made electronically or at a financial institution — not by cheque or mail.
Zero-Rated vs. Exempt Supplies
Not all goods and services attract the full GST/HST rate. Understanding the difference between zero-rated and exempt supplies is crucial:
| Category | GST/HST charged to customer? | Can you claim ITCs? | Examples |
|---|---|---|---|
| Taxable supplies | Yes (at applicable rate) | Yes | Most goods and services |
| Zero-rated supplies | No (0%) | Yes | Basic groceries, prescription drugs, exports |
| Exempt supplies | No | No | Residential rent, most health and educational services, financial services |
The key difference: zero-rated suppliers can still claim ITCs on their business expenses. Exempt suppliers cannot — making exemption a hard cost to the business.
Understanding your GST/HST obligations is one of the most important compliance steps for any Canadian small business. Register when your revenue crosses $30,000, file electronically before your deadline, claim every eligible ITC, and make payments on time to avoid the 7% compounded interest and late-filing penalties. When in doubt, CRA My Business Account gives you full visibility into your account, deadlines, and balance at any time.