Canada GST/HST Calculator

Add or remove GST/HST at Canada’s 5% standard rate — net, GST/HST and gross, instantly. Free, no signup.

GST/HST rate
%

GST/HST varies by location — enter your exact combined rate for a precise result.

Net
$1,000.00
GST/HST @ 5%
$50.00
Gross
$1,050.00

GST/HST in Canada: the essentials

  • Standard rate: 5% GST (13–15% HST in participating provinces; separate PST/QST elsewhere)
  • Registration: CAD 30,000 in revenue over four quarters (the small-supplier limit)
  • Return: GST/HST return, filed monthly, quarterly or annually with the CRA
  • Corporate tax: ≈15% federal plus provincial corporate tax

How to calculate GST/HST in Canada

  1. Enter the amount. Type the amount — your net figure to add GST/HST, or a tax-inclusive figure to remove it.
  2. Choose add or remove GST/HST. Switch between adding GST/HST to a net price and backing it out of a gross price.
  3. Pick the rate. Select the GST/HST rate (default 5%), or enter your exact local rate.
  4. Read the result. See the net, GST/HST amount and gross total update instantly.

Stop calculating GST/HST by hand

KARR applies Canada’s GST/HST automatically on every invoice, tracks the registration threshold, and prepares the return — flagging non-compliance before you file.

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Frequently asked questions

What is the GST/HST rate in Canada?

The standard GST/HST rate in Canada is 5% GST (13–15% HST in participating provinces; separate PST/QST elsewhere).

How do I calculate GST/HST in Canada?

To add GST/HST, multiply the net amount by the rate. At 5%, a 1000 net becomes 1050.00 gross. To remove GST/HST from a tax-inclusive price, divide it by 1.050. This calculator does both instantly.

When must I register for GST/HST in Canada?

Registration: CAD 30,000 in revenue over four quarters (the small-supplier limit), filed with the CRA.

Is this Canada GST/HST calculator free?

Yes — it is completely free, needs no signup, and runs entirely in your browser. For automatic GST/HST on every invoice and one-click returns, try KARR.

Read the full Canada GST/HST & tax guides →

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Rates shown reflect Canada’s published GST/HST rates and are provided for guidance only — confirm the rate for your specific supply. Not tax advice.