# GST/QST Calculator for Canada (GST, HST, PST)

URL: https://speedycalculator.com/calculators/finance/gst-qst/
Last updated: 2026-10-25

> The Canadian sales tax calculator adds GST, HST, PST or QST to a price for any province or territory – or removes it from a tax-inclusive price – showing the federal and provincial parts.

## Inputs

- Province or territory
- I want to
- Amount

## Results

- Provincial part (PST, QST or HST share)
- Combined rate
- Amount before tax
- GST (5%)
- PST / QST / provincial HST
- Total tax
- Amount after tax

## Formula

```
GST = 5% federally
HST provinces: single combined rate (13–15%)
GST + PST/QST provinces: 5% + provincial rate (Quebec 9.975%)
Total = price × (1 + combined rate)
```

## Explanation

Canada's sales tax depends on the province: Ontario and the Atlantic provinces use a harmonized HST, Quebec charges QST alongside GST, British Columbia, Manitoba and Saskatchewan charge provincial sales tax, and Alberta and the territories charge only the 5% GST. Nova Scotia's HST fell to 14% in April 2025.

### How to use the GST/QST Calculator for Canada

- **Province or territory**
- **I want to**
- **Amount**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Choose the province or territory, whether to add or remove tax, and enter the amount.

### Tips

- Tax figures here are estimates for planning – your actual tax depends on credits, deductions and local rules.
- Check the tax year and filing status before you rely on a result.
- Use gross (before-tax) figures unless a field asks for take-home pay.
- When in doubt, confirm with the tax authority's own calculator or a tax professional.

### Common mistakes to avoid

- Confusing marginal and effective tax rates.
- Adding sales tax to a price that already includes it.
- Forgetting payroll taxes (Social Security and Medicare) on wages.

### Inputs explained

FieldWhat to enterProvince or territoryChoose one: Alberta (GST 5%), British Columbia (GST 5% + PST 7%), Manitoba (GST 5% + RST 7%), New Brunswick (HST 15%) …I want toChoose one: Add tax to a price, Remove tax from a tax-inclusive priceAmountAmount in your currency

### What each result means

- **Combined rate** = 5 + [Provincial part (PST, QST or HST share)]
- **GST (5%)** = [Amount before tax]×0.05
- **PST / QST / provincial HST** = [Amount before tax]×[Provincial part (PST, QST or HST share)]÷100
- **Total tax** = [GST (5%)] + [PST ÷ QST ÷ provincial HST]
- **Amount after tax** = [Amount before tax] + [Total tax]

### Example values

How the main result changes when **Amount** changes and everything else stays at the example values above:

AmountTotal tax507.497511.2310014.9812518.7215022.4620029.95

## Worked example

Inputs — Province or territory: Quebec (GST 5% + QST 9.975%); I want to: Add tax to a price; Amount: $100.

Results — Provincial part (PST, QST or HST share) = 9.975 %; Combined rate = 14.975 %; Amount before tax = $100.00; GST (5%) = $5.00; PST / QST / provincial HST = $9.98; **Total tax = $14.98**; Amount after tax = $114.98.

## FAQ

**What is the sales tax in Quebec?**
5% GST + 9.975% QST = 14.975%.

**Which provinces have HST?**
Ontario (13%), Nova Scotia (14%), New Brunswick, Newfoundland and Labrador, and PEI (15%).

**Does Alberta have sales tax?**
Only the 5% federal GST.

**What formula does the GST/QST Calculator for Canada use?**
GST = 5% federally.


## Sources

- [Canada Revenue Agency – GST/HST rates](https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/charge-collect-which-rate/calculator.html)