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Reverse GST / HST Calculator

Find the pre-tax price and tax part from a tax-included total.

Simplified 2026 estimate. Check official CRA / provincial rules for your case.

About Reverse GST / HST Calculator

Find the pre-tax price and tax part from a tax-included total. Enter only the fields needed and the result appears instantly.

FAQs

What does this calculator do?

Find the pre-tax price and tax part from a tax-included total.

How do I use it?

Enter 2 to 3 fields and the result appears instantly, with no signup.

Is the result official?

No, this is a simplified 2026 estimate. Check official rules for your case.

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