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Canada Reverse GST Calculator.
Pre-loaded with the standard GST rate of 5% and default currency symbol C$.
$
+0.00%
5.0%
%
Pre-Tax Base Price
$ 0.00
Tax / VAT Extracted
$ 0.00
Calculated backwards in real-time
Understanding GST in Canada.
The federal Goods and Services Tax (GST) rate in Canada is 5%. Provinces may add PST or HST. This calculator isolates the net value and GST amount from any gross purchase total using standard international calculation guidelines.
How to Back Out VAT/GST in Canada
To calculate the pre-tax net cost (base amount) from a gross total that includes a standard 5% GST, apply the reverse VAT calculation formula:
Net Price = Gross Amount / (1 + (5 / 100))
Which simplifies to dividing the total by 1.05.
For example: If you paid a total of C$120.00 inclusive of 5% VAT:
- Divide the gross amount:
C$120.00 / 1.05 = C$114.29(Net Price). - Subtract the net amount from total paid to extract the tax portion:
C$120.00 - C$114.29 = C$5.71(Extracted tax).