Do I Need to Charge GST/HST? The Complete 2026 Guide for Canadian Businesses
For Canadian business owners, one of the most important and common questions is Do I need to charge GST/HST? It’s not necessary to be overwhelmed by your goods and services tax obligations. This guide explains the federal-provincial tax regulations that have been harmonized and provides you with a clear path to compliance.
GST/HST Basics: What Are You Actually Charging?
Let’s break down the tax itself. In Canada, sales tax isn’t one single thing—it’s a combination that changes depending on where your customer is located.
- GST (Goods and Services Tax): This is the 5% federal tax. It applies to most goods and services everywhere in the country.
- HST (Harmonized Sales Tax): Some provinces combine the 5% GST with their provincial tax into one single rate. You charge this one rate, and the federal government handles it all.
- PST/QST (Provincial/Quebec Sales Tax): Other provinces add their own separate sales tax on top of the 5% GST. These are run by the provincial governments, with their own rules.
So, what rate do you charge? It depends on your customer’s province. Below is a breakdown of sales tax rates across Canada for 2026. The key rule is this: you charge sales tax based on your customer’s province or territory.
| Province / Territory | Tax System | Rate Breakdown | Total Rate Charged |
| Alberta | GST Only | 5% GST | 5% |
| Northwest Territories, Nunavut, Yukon | GST Only | 5% GST | 5% |
| British Columbia | GST + PST | 5% GST + 7% PST | 12% |
| Manitoba | GST + PST | 5% GST + 7% PST | 12% |
| Saskatchewan | GST + PST | 5% GST + 6% PST | 11% |
| Quebec | GST + QST | 5% GST + 9.975% QST | 14.98% |
| Ontario | HST | Harmonized Sales Tax | 13% |
| New Brunswick, Newfoundland and Labrador, Prince Edward Island | HST | Harmonized Sales Tax | 15% |
| Nova Scotia | HST | Harmonized Sales Tax | 14% |
Actionable Tip: Before creating an invoice, always make sure to confirm the province or territory of your customer. Software like QuickBooks or Wave can often automate this rate selection based on the customer’s address.
The #1 Rule: The $30,000 “Small Supplier” Threshold
This is the golden rule. It determines if you must register to charge GST/HST. You are considered a “small supplier” and can generally avoid registration if your total revenue is under $30,000 over four consecutive calendar quarters.
Don’t get tripped up—this isn’t a simple “annual” rule. Let’s break it down.
How the “Four Consecutive Quarters” Rule Works
You need to look at your total worldwide revenue from taxable supplies (sales) at the end of every single quarter. You’re calculating a rolling total.
- Quarter 1 (Jan-Mar): You earn $5,000. Total = $5,000.
- Quarter 2 (Apr-Jun): You earn $8,000. New rolling total = $13,000.
- Quarter 3 (Jul-Sep): You earn $12,000. New rolling total = $25,000.
- Quarter 4 (Oct-Dec): You earn $4,000. New rolling total = $29,000.
Result: At the end of Quarter 4, your total for the last four quarters is $29,000. You are still a small supplier and not required to register.
When You Must Register
The moment your rolling four-quarter total hits or exceeds $30,000, you cease to be a small supplier. You then have 29 days to register with the CRA and start charging tax.
Let’s change the last quarter in our example:
Quarter 4 (Oct-Dec): You earn $6,000. New rolling total = $31,000.
Result: By now, you’ve surpassed the $30,000 mark. You have 29 days from the end of the fourth quarter to register.
Actionable Tips:
- Mark your calendar: Check your total at the end of March, June, September, and December.
- Start tracking now: Use a simple spreadsheet to log all revenue.
- Remember: This includes almost all sales, not just Canadian ones.
When Do You Have to Start Charging?
You must register and start charging GST/HST in these four specific situations:
| Scenario | The Trigger | Required Action & Deadline |
| A. Single Quarter Spike | Your revenue hits $30,000+ in any 3-month quarter (Jan-Mar, Apr-Jun, etc.). | Register and charge tax within 29 days after that quarter ends. |
| B. Rolling Annual Threshold | Your total from the last 4 consecutive quarters reaches $30,000. | Register and charge tax within 29 days of the date you exceed the limit. |
| C. New Business Forecast | You reasonably expect sales to exceed $30,000 in your first quarter. | Register from your start date to avoid penalties. |
| D. Special Industry Rules | You operate a taxi, ride-share service, or (often) sell digital products. | Registration is immediate upon starting, with no $30k exemption. |
Actionable Tip: For Scenarios A & B, set a calendar reminder for the 29-day deadline the moment you see you’ll hit the threshold. Don’t wait until the last minute.
Not Everything Gets Taxed: Exempt vs. Zero-Rated Supplies
It’s a common misconception that you charge GST/HST on every sale. In reality, some supplies are either exempt or zero-rated. Understanding this difference is crucial for your bookkeeping and can impact your costs.
Here’s the simple breakdown:
- Exempt Supplies: GST and HST are not billed to your customer. Input Tax Credits (ITCs) are not available for the GST/HST you paid on related expenses, though.
- Your customer is not charged GST or HST. However, the GST/HST you paid on associated expenses is not eligible for Input Tax Credits (ITCs).
- Zero-Rated Supplies: You technically apply a 0% GST/HST rate. The key difference is that you can still claim ITCs for the tax you paid on your business inputs.
This shows common examples of each to make it clear.
Exempt Supplies (No tax charged, no ITCs claimed)
- Sale of a used home
- Long-term residential rent
- Most health care services are provided by a doctor
- Most educational courses
- Many financial services
Zero-Rated Supplies (0% tax rate, ITCs can be claimed)
- Basic groceries (like milk, bread, and vegetables)
- Prescription drugs and certain medical devices
- Exported goods and services
- Certain agricultural and fishing products
Actionable Tip: Always verify the tax status of what you’re selling. Charging tax on an exempt supply can upset customers and create accounting headaches. More importantly, not charging tax on a taxable supply will leave you on the hook to pay that tax to the government out of your own pocket.
Why Register Voluntarily? The ITC Advantage
Even if your revenue is below the $30,000 small-supplier threshold, registering for GST/HST can be a smart financial move. The main reason is to unlock Input Tax Credits (ITCs).
What are ITCs?
These let you recover the GST/HST you pay on business expenses. When registered, you can claim back the tax paid on:
- Office supplies and equipment
- Business software and subscriptions
- Raw materials or inventory
- Marketing and advertising costs
- Vehicle fuel for business use (within limits)
- Professional fees (e.g., to a lawyer or accountant)
For a startup investing heavily in computers, tools, or initial inventory, these ITCs can result in a significant refund from the CRA, improving your cash flow.
It Also Makes You Look Professional
Voluntarily registering and including your GST/HST number on invoices signals that you’re a serious, established business. This is particularly valuable if most of your clients are other GST/HST-registered businesses (B2B), as it allows them to claim ITCs on your services.
Important Considerations First
Voluntary registration isn’t free. It comes with obligations:
- Administrative Work: You must charge tax, file regular returns (even if they’re nil), and keep detailed records for six years.
- Cash Flow Management: You are collecting tax money that belongs to the government. You must ensure it’s set aside and remitted on time.
- Director Liability: If your business is incorporated, directors can be held personally liable for any unremitted GST/HST, a significant responsibility.
Actionable Tip:
If your business has significant startup costs or ongoing expenses that you pay GST/HST on, you might want to think about voluntary registration. Make use of the possible ITC refund to make up for the additional paperwork. If you’re unsure, you can run the numbers with the assistance of a bookkeeper or accountant.
How to Register (Step-by-Step)
Registration is typically completed online. Here’s how:
- Step 1: Gather your info: Have your SIN, business address, and annual revenue estimate ready.
- Step 2: Use the CRA’s BRO service: Go online to the Business Registration Online (BRO) portal. You’ll get a Business Number (BN) and register your GST/HST account at the same time.
- Step 3: Get your details: You’ll receive your GST/HST account number and your assigned filing frequency (annual, quarterly, or monthly).
Charging Tax & Keeping Records
Record Keeping: Save all sales invoices, purchase receipts, and ledgers for at least six years.
Filing Returns & Claiming Credits
The Filing Cycle: File your return one month after your reporting period ends (e.g., a Q1 Jan-Mar return is due April 30th). You’ll report:
- Tax you collected from customers.
- Input Tax Credits (ITCs) for the tax you paid on business expenses.
The Core Formula:
(GST/HST Collected) – (ITCs Claimed) = Amount Owed to CRA (or your refund)
Example: You collect $1,300 in tax from clients and claim $1,000 in ITCs for office supplies. You owe the CRA $300.
Deadlines & Penalties
Late Filing/Payment Penalties:
- Late Filing: 1% of tax owed, plus 0.25% more each full month it’s late.
- Late Payment: Interest charged daily on the overdue amount.
- Missing a Formal Demand: A flat $250 penalty.
How to Avoid Issues:
Remember to set reminders on your calendar for when you need to file. Even if you are unable to pay in full, you should still file on time to avoid the larger late-filing penalty. Then, get in touch with the CRA to make arrangements for payment. Track everything automatically by using accounting software.
Conclusion
For any expanding business, navigating GST/HST is a significant milestone. Now that you have this knowledge, you can concentrate on your strengths and make wise decisions.
FAQs
I made less than $30,000 last year. Do I need to charge?**
Not necessarily. You are a *small supplier* and exempt unless you earned $30,000 within any single quarter or over four consecutive quarters.
How do I calculate my four-quarter total?
Add your total revenue for the current quarter to the previous three at the end of each calendar quarter (March, June, September, and December). It is a rolling computation.
Are there things I should never charge GST/HST on?
Yes. Exempt supplies like residential rent or most doctors’ services are not taxed. You also cannot claim ITCs for related expenses on these sales.
Why would I register voluntarily if I’m under the threshold?
To claim Input Tax Credits (ITCs). This lets you recover the GST/HST paid on business expenses like equipment, software, and office supplies, improving your cash flow.
How is the final tax I owe calculated?
Use this core formula on your return: (Total GST/HST you collected) – (Total ITCs you can claim) = Net Tax Remitted (or Refund Received).