GST/HST Filing in Canada: What You Need to Know
A complete guide to GST/HST registration, filing, and compliance. Understand your obligations and avoid penalties with this detailed guide.
GST/HST Filing in Canada: What You Need to Know
If you're a business owner in Canada, understanding GST/HST is critical. Here's everything you need to know about registration, filing, and compliance.
What is GST/HST?
GST (Goods and Services Tax) is a 5% federal tax. HST (Harmonized Sales Tax) combines GST with provincial sales tax and ranges from 13-15% depending on the province.
Do You Need to Register?
You must register for GST/HST if your total revenue exceeds $30,000 in any 12-month period. Some businesses can register voluntarily even if below this threshold.
Filing Frequency
• Monthly: Large businesses remit monthly
• Quarterly: Medium-sized businesses file quarterly
• Annually: Small businesses may file annually
Key Filing Dates
• Monthly filers: Payment due by the 27th
• Quarterly filers: 1 month after quarter-end
• Annual filers: 3 months after year-end
GST/HST Credit
Registered businesses can claim Input Tax Credits (ITCs) on purchases. This means you only remit the GST/HST collected from customers, minus the GST/HST paid on business expenses.
Tips for Compliance
• Keep detailed records of all sales and purchases
• Maintain receipts for GST/HST paid
• Use accounting software to track GST automatically
• File on time to avoid penalties (5-50% of unpaid amounts)
Pro Tip: Many small businesses are eligible for GST refunds even with zero revenue in low-revenue periods. Let us calculate your GST/HST obligations and maximize your credits.
Accountants Online Team
Canadian Tax & Accounting Team
Every article is prepared by our accounting team and reviewed against current Canada Revenue Agency and Government of Canada guidance.
Last updated: September 11, 2026