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GST/HST Calculator Canada

Calculate Canadian GST/HST and provincial tax for pricing, invoicing, and planning.

Quick answer

GST/HST Calculator Canada helps estimate the result from your inputs in the browser. Use the output as a planning number, then compare it with your records, provider terms, or official guidance before making a final decision.

!

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

Free

Total price

$113.00
Combined rate
13%
Tax amount
$13.00
Province
Ontario
Tax type
HST

Ontario uses HST for this table. Verify the place-of-supply and type-of-supply rules before charging or filing tax.

Breakdown

Price before tax
$100.00
GST/HST line
$13.00 (13%)
Total tax
$13.00
Total price
$113.00
Rates last checked 2026-08-10. Source: Canada Revenue Agency GST/HST calculator and Revenu Quebec GST/QST basic rules.

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 x tax rate. Total = price before tax + tax amount.

How it works

A clean flow from input to answer

  1. 1Enter the price before tax.
  2. 2Select the province or territory for the applicable supply; confirm the tax treatment first.
  3. 3Read the tax amount and final total instantly.

FAQ

Common questions

Does this calculate provincial rates?

Yes. Select a province or territory to apply its standard GST/HST and provincial rates. Special product rules and exemptions are not determined by this tool.

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?

This tool adds tax to a before-tax price. To remove Quebec TPS and TVQ from an inclusive total, use the related TPS/TVQ calculator.

Is anything stored?

No. The calculation stays local in the browser.

Select the Canadian tax based on place of supply

GST or HST depends on the applicable place-of-supply rules, not simply the seller's address. Provinces using HST have one combined rate, while GST provinces may also impose a separate PST or QST administered under different registration, invoice, and recovery rules.

To extract tax from a tax-inclusive total, divide using the applicable fraction rather than subtracting the headline percentage. A $113 total at 13% HST contains $13 tax and a $100 base; subtracting 13% of $113 would produce the wrong result.

Confirm whether the supply is taxable, zero-rated, exempt, or outside scope. Input tax credits generally relate to GST/HST paid on eligible business purchases, while some provincial sales taxes are not recovered the same way. Keep supporting invoices for the actual reporting process.

Registration thresholds, digital supplies, imports, interprovincial services, and Quebec administration require current CRA or Revenu Québec guidance. The calculator performs rate arithmetic for the province selected; it does not decide registration or prepare a return.

Verification

Official sources and limitations

Verified on 2026-08-10

Calculation scope

  • Rate-table and invoice-planning scope only; exemptions and special place-of-supply cases are outside this release.
  • Does not cover payroll, income-tax, or filing workflow completeness.

Confirm for your case

The result applies the displayed rates to your entered amount. It does not determine whether a supply is taxable, zero-rated, or exempt.