Bottom line: For most businesses, GST/HST registration becomes mandatory after crossing the small-supplier threshold, but the effective date depends on how and when the $30,000 threshold is exceeded.
Current comparison snapshot
| Provider / option | Best for | Current facts | Watch for |
|---|---|---|---|
| Below $30,000 over four consecutive quarters | Most small suppliers | CRA says most businesses that do not exceed $30,000 in taxable supplies over four consecutive calendar quarters remain small suppliers and generally do not have to register for GST/HST, although voluntary registration may be available. | Use taxable supplies, not simply accounting profit, when applying the GST/HST threshold rules. |
| Exceeding $30,000 in one calendar quarter | Rapidly growing businesses | If the $30,000 threshold is exceeded in a single calendar quarter, CRA says small-supplier status ends immediately and GST/HST must be charged on the supply that caused the threshold to be exceeded. | The registration effective date can be the same day as the threshold-crossing sale, so revenue tracking cannot wait until year-end. |
| Exceeding $30,000 over four consecutive quarters | Gradual growth | When the threshold is exceeded over the previous four or fewer consecutive calendar quarters but not in one quarter, CRA says small-supplier status ends at the end of the following month and registration must take effect no later than the first taxable supply after that point. | The timing calculation is easy to misread. Keep quarterly revenue totals so the effective date is clear. |
| Voluntary registration | Eligible businesses below the threshold that want a GST/HST account | CRA permits many small suppliers making taxable supplies in Canada to register voluntarily. Once registered, the business must charge, collect, report and remit GST/HST as required and may be able to claim input tax credits. | Voluntary registration creates administrative obligations. Do not register merely because a customer asks for a GST number without understanding the consequences. |
Track threshold revenue continuously
A spreadsheet or accounting system should show taxable supplies by calendar quarter. That lets you see whether you are approaching the single-quarter or rolling-four-quarter threshold before a large invoice unexpectedly changes your status.
Revenue threshold and income tax are different concepts
GST/HST registration uses supply/revenue rules, while income tax is based on business income after allowable expenses. A business can have modest profit but still cross the GST/HST registration threshold because its gross taxable sales are much higher.
Know the special cases
Taxi and ride-share drivers generally have special GST/HST registration rules, and exempt supplies can be treated differently. If your activity falls into a special industry or exemption category, use the CRA page for that activity instead of relying only on the general $30,000 rule.
Provider pages checked for this comparison
These links go to the providers’ own current product or route pages. Re-check them before applying or purchasing because pricing and promotions can change.
What to compare
Do not compare brands on one promotional number. Put the products side by side using the same assumptions and the factors that affect your recurring cost and ability to use the product.
How to make the decision
- Determine whether your supplies are taxable or exempt.
- Track revenue by calendar quarter.
- Identify the date small-supplier status ends.
- Register by the CRA deadline if required.
- Start charging and reporting GST/HST from the correct effective date.
CanadaStarter methodology
We prioritize total cost, eligibility, practical usability and downside risk. We separate temporary promotions from ongoing terms and prefer primary provider disclosures for fees and eligibility. We do not treat a higher affiliate payout as evidence that a product is better.
Because financial products, insurance policies, telecom plans and promotions change frequently, use this guide to narrow the field and then confirm the final terms on the provider’s official website before applying or purchasing.
Find a job in Canada as a newcomer
Use this primary source alongside our comparison when checking rules, consumer rights or government guidance.
Government of Canada – Job Bank →Frequently asked questions
Is the GST/HST threshold $30,000?
For most businesses, CRA uses a $30,000 small-supplier threshold, with timing rules based on a single quarter or the previous four consecutive calendar quarters.
Can I register before reaching $30,000?
In many cases yes, if you make taxable supplies in Canada. Voluntary registration also creates ongoing GST/HST obligations.