Taxes
GST/HST Calculator
Calculate GST or HST on purchases and determine net/gross price.
Add or remove general sales tax for the listed Canadian provinces. The combined rate assumes an ordinary taxable item subject to all listed taxes; exemptions and place-of-supply rules can change the applicable tax.
Total with tax
$113.00
- tax Amount
- $13.00
- before Tax
- $100.00
- effective Rate
- 13.000%
Formula and method
Gross = Net × (1 + Tax Rate); Net = Gross / (1 + Tax Rate)
General combined rates, reviewed October 12, 2026. Nova Scotia HST is 14%, effective April 1, 2025. Quebec GST (5%) and QST (9.975%) are each calculated on the pre-tax price; QST is not applied on top of GST. Final receipt rounding can differ by cents.
Sources checked October 12, 2026
Worked examples
Freelance invoice in Ontario
- Amount ($):
- 5000
- Province:
- Ontario — HST 13%
- Calculate:
- Add tax to price (net → gross)
Total with tax: $5650.00
Extract tax from receipt
- Amount ($):
- 226
- Province:
- Ontario — HST 13%
- Calculate:
- Remove tax from price (gross → net)
Total with tax: $226.00
Assumptions and limits
- Ordinary taxable purchase; no exemptions or rebates
- Applicable province determined separately under place-of-supply rules
- Both provincial and federal tax apply when a combined rate is shown
This tool provides an educational estimate. Rules, rates and personal circumstances can change the answer. Review the assumptions before relying on a result. Report a correction.
Common mistakes to avoid
- Applying GST rate to the GST-included total (double-counting) — always apply to the pre-tax amount.
- Using 5% GST for Ontario instead of 13% HST.
- Forgetting that PST in BC is applied to the pre-GST price, not the combined amount.
Frequently asked questions
Does every purchase use these rates?
No. Exempt and zero-rated items, special provincial rules and place of supply can change the tax.
What is Nova Scotia HST?
The general HST rate is 14% for applicable supplies on or after April 1, 2025.
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