If you're running a small business in Canada, managing HST/GST correctly is a must. It's not just about collecting and remitting tax — it's about knowing when to register, how to file, and what to track to stay on the right side of the CRA.
What is HST/GST?
- GST (Goods and Services Tax) is a federal tax of 5% applied to most goods and services sold in Canada.
- HST (Harmonized Sales Tax) is a combined federal and provincial tax in certain provinces (e.g., Ontario, Nova Scotia).
- Some provinces charge PST/QST separately (like BC and Quebec).
Step 1: Do You Need to Register?
You must register if your total taxable revenues exceed $30,000 in the last 12 months, or you expect to exceed that threshold in the current quarter. If you're under the limit, registration is optional — but doing so lets you claim input tax credits (ITCs).
Step 2: Charge the Correct Rate
| Province(s) | Tax Rate | Tax Type |
|---|---|---|
| Alberta, Yukon, NWT, Nunavut | 5% | GST Only |
| Ontario | 13% | HST |
| Nova Scotia, NB, NL, PEI | 15% | HST |
| British Columbia | 5% + 7% PST | Separate |
| Manitoba | 5% + 7% RST | Separate |
| Saskatchewan | 5% + 6% PST | Separate |
| Quebec | 5% + 9.975% QST | Separate |
Step 3: Track Input Tax Credits (ITCs)
If you're a GST/HST registrant, you can recover GST/HST paid on eligible business expenses. Common eligible expenses include office supplies, software subscriptions, professional services, and rent for commercial space.
Meals & Entertainment: You can claim 50% of the GST/HST paid on meals and entertainment expenses for business purposes. You must have a receipt.
Step 4: File and Remit on Time
| Annual Revenue | Filing Frequency | Filing Deadline |
|---|---|---|
| Up to $1.5M | Annually | Within 3 months of year-end |
| $1.5M to $6M | Quarterly | End of month following period |
| Over $6M | Monthly | End of month following period |
Step 5: Watch for Common Pitfalls
- Forgetting to collect tax on interprovincial sales
- Missing deadlines — late filing means penalties and interest
- Mixing business and personal expenses
- Overlooking HST/GST on platform fees (e.g., Shopify, Stripe)
Final Thoughts
HST/GST doesn't have to be complicated. With the right systems in place — and the right accounting partner — you can stay compliant, avoid penalties, and even improve your cash flow with proper ITC claims.
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