biller.ca
Free tool

Free HST calculator for Canada.

Add HST to a price or take it out of a total, for any province or territory. No account needed.

Updated

The short answer

HST = price × the rate for the province. In Ontario the rate is 13%, so HST on $100 is $13.00, and the total is $113.00.

Nova Scotia is 14%. New Brunswick, Newfoundland and Labrador, and Prince Edward Island are 15%. Pick your province below. Results are estimates.

Add or remove HST

No account needed

An estimate. Runs in your browser. Nothing you type is sent anywhere.

What do you want to do?

Use the place of supply, which is often where your client is. It is not always where you are.

Total with tax
$113.00
Price before tax
$100.00
HST (13%)
$13.00
No separate provincial tax
—

Rates checked with the CRA on October 31, 2026. Tax can change with what you sell and where you supply it, so treat this as an estimate. A cent or two of rounding can differ on a real invoice.

Charging HST? Put it on a real invoice.

Biller's invoice form has fields for your tax rate and GST/HST number, and settings keep a default rate for your province. Clients can pay by e-Transfer or card.

Start free

Free plan with unlimited invoices. No credit card.

The formulas

To start from a total, use the reverse HST calculator.

The rates, by province and territory

The table comes from the rates Biller uses in its own invoices. We checked them against the CRA's GST/HST calculator page on October 31, 2026.

Province or territory GST or HST PST or QST Combined
Alberta 5% GST None 5%
British Columbia 5% GST 7% PST 12%
Manitoba 5% GST 7% PST 12%
New Brunswick 15% HST None 15%
Newfoundland & Labrador 15% HST None 15%
Northwest Territories 5% GST None 5%
Nova Scotia 14% HST None 14%
Nunavut 5% GST None 5%
Ontario 13% HST None 13%
Prince Edward Island 15% HST None 15%
Quebec 5% GST 9.975% QST 14.975%
Saskatchewan 5% GST 6% PST 11%
Yukon 5% GST None 5%

PST and QST are separate taxes

British Columbia, Manitoba, Saskatchewan and Quebec charge GST plus their own sales tax. The CRA's table shows those rates, but the provinces run those taxes. The calculator shows each tax on its own line, and you can clear the box if a sale has no PST or QST.

Whether PST or QST applies depends on what you sell. A combined rate is an estimate, not a ruling. Check with the province, or with Revenu Québec for QST. The CRA says, "If provincial sales tax (PST) is charged in the place of supply, calculate the GST on the price without the PST." The calculator works that way.

The rate depends on the place of supply

The CRA says the rate depends on the place of supply, which it describes as the province or territory where a taxable sale, lease or other supply is considered to be made. That is not always where your business is. Some supplies have no tax at all: the CRA says "a zero-rated supply has a 0% GST/HST rate throughout all of Canada."

If you are not registered for GST/HST, you do not charge it. See the GST/HST registration guide for when you must register.

These results are estimates, not tax advice. The CRA also says rounding can move a total by a cent or two. Confirm your own situation with the CRA or a tax professional. Rates checked on October 31, 2026.

Questions

How do I calculate HST in Ontario?

Multiply the price by the rate. In Ontario, the HST rate is 13%, so HST on $100 is $13, and the total is $113.

What is the HST rate in Nova Scotia?

14%. The CRA says the rate fell to 14% on April 1, 2025.

Which provinces charge HST?

Ontario, New Brunswick, Newfoundland and Labrador, Nova Scotia and Prince Edward Island. The table on this page shows each rate.

Is HST the same as GST?

HST combines the federal GST with a provincial part in one rate, and the CRA treats them together as GST/HST. You show one tax line, not two.

Is this calculator exact?

It gives an estimate. It rounds to the cent, and it cannot tell whether your particular sale is taxable or where the place of supply is.

Stop working out HST on your phone.

Biller takes you from quote to schedule to invoice, with e-Transfer and card payments and reminders for late payers. Free to start, Pro is $99 a year.

Start free — no credit card

Free plan · Pro $99/year · Built for Canada — e-Transfer and card payments

Not ready? Try the free invoice generator

About this information

This page is general information, not financial, legal, or tax advice. We gathered it from public sources (banks, payment providers, government agencies such as the CRA, and published industry rates), and it reflects our understanding when it was last updated. Rates, limits, fees, and rules change without notice, and your situation may differ from the general case.

Before you rely on anything here, do your own due diligence: confirm the details with the original source, and check that they are still current. For advice about your own finances, taxes, or legal position, hire a qualified professional such as an accountant, lawyer, or financial advisor. See our Terms for the full disclaimer. Last updated October 31, 2026.