Free tool

GST / HST Calculator

Add or back out GST/HST for any Canadian province in one tap. Handy for invoices, quotes and quick checks.

Amount (CAD) Province / territory Mode

$50.00

GST at 5% — total $1,050.00

BC, Saskatchewan, Manitoba and Quebec also charge a separate provincial sales tax (PST/RST/QST) not shown here. This tool covers federal GST/HST only. Estimate for convenience — not tax advice.

How GST/HST works

Understanding GST/HST in Canada

GST/HST is a tax on most goods and services in Canada. The rate you charge follows the place of supply — where your customer is: 5% GST in Alberta and the territories, 13% HST in Ontario, 15% HST in the Atlantic provinces (14% in Nova Scotia since 2025), and 5% GST plus a separate provincial tax in BC, Saskatchewan and Manitoba.

Once your taxable sales pass $30,000 over four rolling quarters you must register, charge and remit GST/HST. The upside: you can then claim input tax credits for the GST/HST you paid on business expenses, which often means a smaller remittance — or a refund. Use the calculator above to add or remove tax for any province, then talk to us about registration and filing.

This calculator gives a general estimate for information only — not tax advice specific to your situation. Rates and rules change, and your result depends on details it can’t capture. We confirm the numbers for your circumstances in a free consult.

Questions

Good to know

Do I need to charge GST/HST as a contractor or small business?+

Once your taxable revenue passes $30,000 over four consecutive quarters you must register for GST/HST and charge it. Many businesses register earlier to claim input tax credits. We handle registration and filing for you.

What is the difference between GST, HST and PST?+

GST is the 5% federal tax. In HST provinces (Ontario and the Atlantic provinces) the federal and provincial portions are combined into one tax. BC, Saskatchewan, Manitoba and Quebec keep a separate provincial sales tax (PST, RST or QST) on top of the 5% GST.

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