What is GST/HST in Canada? Beginner Guide (2026)
Understanding GST/HST in Canada is essential for business owners, freelancers, and entrepreneurs. Whether you are starting a new business or expanding your operations, knowing how sales tax works will help you stay compliant and avoid costly mistakes.
This beginner guide explains what GST/HST is, how it works, who needs to register, and key rules for 2026.
What is GST/HST?
GST/HST in Canada refers to consumption taxes applied to most goods and services:
- GST (Goods and Services Tax): A 5% federal tax
- HST (Harmonized Sales Tax): A combined federal + provincial tax
The Canada Revenue Agency administers GST/HST across Canada.
* In provinces like Ontario, HST is used instead of separate GST and provincial sales tax.
GST vs HST: What’s the Difference?
| Feature | GST | HST |
|---|---|---|
| Type | Federal tax | Combined federal + provincial tax |
| Rate | 5% | Varies by province |
| Administration | CRA | CRA |
| Example Province | Alberta | Ontario |
* Ontario’s HST rate is 13% (5% federal + 8% provincial).
Who Needs to Register for GST/HST?
You must register for GST/HST if your business:
- Earns more than $30,000 in taxable revenue within 12 months
- Supplies taxable goods or services in Canada
Small Supplier Rule
If your revenue is below $30,000:
- Registration is optional
- You are considered a small supplier
* Many small businesses still register voluntarily to claim tax credits.
What is a GST/HST Number?
A GST/HST number is part of your Business Number issued by the Canada Revenue Agency.
* You must include this number on invoices once registered.
When Do You Charge GST/HST?
You must charge GST/HST when:
- You are registered
- You provide taxable goods or services in Canada
Types of Supplies:
- Taxable: Standard GST/HST applies
- Zero-rated: Tax rate is 0% (e.g., basic groceries)
- Exempt: No tax charged (e.g., certain healthcare, education services)
How GST/HST Works
Here’s a simple explanation:
Step 1: Charge Tax
You collect GST/HST from customers.
Step 2: Track Expenses
You pay GST/HST on business purchases.
Step 3: Claim Input Tax Credits (ITCs)
You recover the GST/HST paid on expenses.
Step 4: Remit Net Tax
* Collected Tax – ITCs = Amount Owing to CRA
What are Input Tax Credits (ITCs)?
Input Tax Credits (ITCs) allow businesses to recover GST/HST paid on:
- Office expenses
- Rent and utilities
- Equipment and supplies
- Professional services
* ITCs reduce the amount of tax you owe.
Filing GST/HST Returns
Once registered, you must file GST/HST returns regularly.
Filing Frequencies:
- Monthly
- Quarterly
- Annually
Deadlines:
- Based on your reporting period
Even if you have no activity, you must file a return.
Common GST/HST Mistakes
* Not registering on time
* Charging incorrect tax rates
* Forgetting to claim ITCs
* Missing filing deadlines
* Poor record keeping
Benefits of GST/HST Registration
* Claim input tax credits
* Enhance business credibility
* Avoid penalties for late registration
* Enable business growth
Tips for Managing GST/HST
* Keep accurate records of all transactions
* Use accounting or tax software
* Understand place of supply rules
* Review CRA updates regularly
* Consult a tax professional when needed
Final Thoughts
GST/HST in Canada is a key part of running a business. While it may seem complex at first, understanding the basics—registration, charging tax, claiming credits, and filing returns—can make compliance much easier.
By staying organized and informed, you can:
- Avoid penalties
- Improve cash flow
- Stay compliant with the Canada Revenue Agency