Free browser tool
GST/HST Calculator Canada
Add or extract Canadian GST/HST for pricing, invoicing, and planning.
!
This calculator is for estimates only. Canadian tax rules vary by province and situation, so verify before filing or invoicing.
Calculator
Results update as you type
Tax amount
$13.00
Total price
$113.00
Tax rate
13%
Example
Canadian tax planning keeps the math simple: it shows the before-tax and after-tax values instantly in the browser.
Formula
The math behind the result
Tax amount = price before tax × tax rate. Total = price before tax + tax amount.
How it works
A clean flow from input to answer
- 1Enter the price before tax or price with tax depending on your use case.
- 2Set the Canadian tax rate you want to model.
- 3Read the tax amount and final total instantly.
FAQ
Common questions
Does this calculate provincial rates?
It can model any combined rate you enter, which is useful for GST/HST planning at a practical level.
Is this a filing tool?
No. It is a planning calculator, not a tax filing replacement.
Can I use it for invoices?
Yes. It is useful for estimating the tax portion before creating an invoice.
Does it work in reverse?
Yes. You can extract the tax base from a tax-inclusive price as well.
Is anything stored?
No. The calculation stays local in the browser.