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GST/HST Calculator (Canada)

Add or reverse Canadian federal and provincial sales tax by province or territory. All calculations run in your browser.

Enter an amount to see the result.

Frequently asked questions

What is the GST/HST rate in Canada for 2026?

Canada has a 5% federal Goods and Services Tax (GST). Most provinces add a provincial portion as Harmonized Sales Tax (HST): Ontario 13%, and the Atlantic provinces (New Brunswick, Newfoundland & Labrador, Nova Scotia, Prince Edward Island) 15%. Alberta, BC, Saskatchewan, Manitoba and the territories have no provincial sales tax, so only 5% GST applies. Quebec applies 5% GST plus a separate 9.975% QST.

How do I reverse HST from a total?

To find the pre-tax amount from a tax-inclusive total, divide the total by 1 plus the combined rate as a decimal. For 13% HST: pre-tax = total ÷ 1.13. The tax portion is the remainder.

Is GST/HST included in displayed Canadian prices?

In most of Canada, consumer prices are advertised tax-inclusive. Quebec commonly displays pre-tax. This calculator supports both directions.

Legal & Accuracy Notice: This tool provides general calculation only — not tax or financial advice. Rates shown reflect commonly published 2026 combined rates and may not capture point-of-sale rebates, zero-rated, or exempt supplies. Confirm with the CRA or a qualified professional. No personal data is collected.