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Canada GST/HST Calculator

Add or extract GST/HST on any amount in CAD.

Runs in your browser — files never leave your device

Net
$100
GST/HST
$5
Gross
$105

How it works

Enter an amount in CAD and a GST/HST rate to add tax, or extract the GST/HST already included in a total.

Other regions: United States, United Kingdom, Australia.

Frequently asked questions

What’s the default GST/HST rate?
We pre-fill 5% for Canada, but you can change it to match your region or product.
Can it remove tax from a total?
Yes — tick the inclusive option to extract the tax already inside a gross amount.