GST HST Calculator

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GST HST Calculator

Add GST, HST, PST, RST or QST to a price, or take the tax out of a total, for any Canadian province or territory. See each tax on its own line and the same amount in all 13 places. Rates as of September 21, 2026.

Switch province or territorysame amount, one tap
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Tax on this amount in every province and territory

The same amount across Canada

Adding tax: each tax = price before tax × its rate, rounded to the nearest cent, and total = price + taxes. PST, RST and QST are charged on the price before tax, never on the GST. Removing tax: price before tax = total ÷ (1 + combined rate), for example total ÷ 1.13 in Ontario. HST is one tax; its federal 5% and provincial parts are shown for information. Rates checked against the Canada Revenue Agency, Revenu Québec and the provincial finance ministries on September 21, 2026. The general rate is applied: exemptions, rebates at the till and special rates on some items are not. The CSV, image and printed report contain the values you entered, nothing preloaded.

How to use this tool

Start with what you have. If you know the price before tax, from a shelf tag or a quote, choose "add tax to a price" and the calculator adds the GST, the HST or the provincial tax. If you are holding a receipt or an invoice total that already includes tax, choose "remove tax from a total" and it works back to the price and splits out each tax. Then pick the province or territory and type the amount in dollars and cents. The buttons under the results switch province without retyping.

The input people most often get wrong is the direction. A $113 receipt from Ontario does not contain $14.69 of tax, which is 13% of $113; it contains $13.00, because the 13% was charged on $100. The second is the province: GST and HST are charged at the rate of the province where the goods are delivered, not where the seller is.

What the calculation is doing

Adding tax is multiplication. Each tax is the price before tax times its rate, rounded to the nearest cent, and the total is the price plus the taxes. The five HST provinces charge one tax at one rate. British Columbia, Saskatchewan, Manitoba and Quebec charge two taxes, the 5% GST and a provincial tax, and both are worked out on the same price before tax, so neither is charged on the other. Alberta, Yukon, the Northwest Territories and Nunavut have only the GST.

Removing tax is division: price before tax = total ÷ (1 + combined rate). That is total ÷ 1.13 in Ontario, total ÷ 1.14975 in Quebec and total ÷ 1.11 in Saskatchewan. The tax is what is left, total − price, which equals total × rate ÷ (1 + rate): 13/113 of an Ontario total, 5/105 where only GST applies, 15/115 where HST is 15%. The CRA uses the same tax fractions when businesses claim back tax on their expenses.

Rounding is the fiddly part. Tax is rounded to the nearest cent on each sale, and half a cent or more rounds up, the rule in both the CRA's guide for registrants and Revenu Québec's instructions. Where there are two taxes, each is rounded on its own line. Because of that, not every total can come from a whole cent price: in Ontario roughly one total in nine is skipped, the same 13/113 share that tax takes of a total. When you remove tax, the calculator first looks for the price that rings up to exactly the total you typed. If none exists, it uses total ÷ 1.13 rounded to the cent, treats the rest as tax, and says so in the working.

Two panel diagram. The first panel shows an Ontario price of $100.00 plus $13.00 HST, made of $5.00 federal and $8.00 provincial parts, reaching $113.00; below it, taking 13% off $113.00 removes $14.69 and leaves $98.31, $1.69 short of the price; dividing $113.00 by 1.13 gives back $100.00, with the $13.00 tax being 13/113 or 11.5% of the total. The second panel shows Quebec QST before 2013 as 9.5% of $105.00, the price plus GST, and since 2013 as 9.975% of $100.00, both $9.975, giving $100.00 plus $5.00 GST plus $9.98 QST equals $114.98
Any rate works the same way: the tax is rate ÷ (1 + rate) of the total, so 15% HST is only 13.0% of what you paid, and 5% GST is 4.8%.

One country, three kinds of sales tax

The 5% GST is federal and applies everywhere. What sits on top depends on a deal each province made, or did not make, with Ottawa. Alberta and the three territories have no sales tax of their own, so 5% is the whole story.

Five provinces merged their sales tax into the GST to make the harmonized sales tax. The CRA collects it as one charge, and a registered business can generally claim all of it back on its business purchases. The federal part is always 5% and the provincial part is 8% in Ontario, 9% in Nova Scotia and 10% in New Brunswick, Newfoundland and Labrador and Prince Edward Island. Nova Scotia cut its provincial part from 10% to 9% on April 1, 2025, which is why older invoices from Halifax show 15%.

British Columbia, Saskatchewan and Manitoba kept their own tax and set its rules themselves, and Quebec runs the QST beside the GST. PST, RST and QST exemptions and special rates vary by item, and the calculator applies each general rate, so check anything with rules of its own. British Columbia charges 8% to 20% PST on passenger vehicles from $55,000 and describes its PST as a tax businesses cannot recover. The base keeps moving: Manitoba dropped RST on more grocery store food on July 1, 2026, Quebec dropped QST on some snack foods, toilet paper and facial tissues on July 15, and from October 1, 2026 British Columbia's 7% PST reaches accounting, engineering, architectural and some other professional services.

Quebec is the odd one, and its odd rate has a reason. Until the end of 2012 the QST was 9.5%, charged on the price including GST. On $100 that was 9.5% of $105, or $9.975. On January 1, 2013 Quebec took the GST out of the QST base and raised the rate to 9.975% so that the tax collected would not change: 9.5% × 1.05 = 9.975%. The result is identical to the cent, but it means anyone who still compounds QST on GST overcharges. On $100 the compounded QST is $10.47 instead of $9.98.

None of the nine provinces with a sales tax changed its general rate in its 2026 budget, and the federal Spring Economic Update left the GST at 5%. The temporary GST/HST break on items such as children's clothing, toys and prepared food ran from December 14, 2024 to February 15, 2025 and has ended.

Sales tax rates by province and territory, September 2026

The rates the calculator uses, checked against the CRA and the provincial sources on September 21, 2026. The last three columns show the tax on a $100 price, the tax contained in a $100 total, and the price before tax inside that $100 total.

Province or territoryTaxesProvincial rateCombinedTax on $100Tax in a $100 totalPrice in a $100 total
AlbertaGST onlynone5%$5.00$4.76$95.24
British ColumbiaGST + PST7%12%$12.00$10.71$89.29
ManitobaGST + RST7%12%$12.00$10.71$89.29
New BrunswickHST10% part15%$15.00$13.04$86.96
Newfoundland and LabradorHST10% part15%$15.00$13.04$86.96
Northwest TerritoriesGST onlynone5%$5.00$4.76$95.24
Nova ScotiaHST9% part14%$14.00$12.28$87.72
NunavutGST onlynone5%$5.00$4.76$95.24
OntarioHST8% part13%$13.00$11.50$88.50
Prince Edward IslandHST10% part15%$15.00$13.04$86.96
QuebecGST + QST9.975%14.975%$14.98$13.03$86.97
SaskatchewanGST + PST6%11%$11.00$9.91$90.09
YukonGST onlynone5%$5.00$4.76$95.24

A worked example you can check on paper

The calculator opens at $100.00 before tax in Ontario. HST = 100.00 × 0.13 = $13.00, so the total is $113.00. The federal part is 100.00 × 0.05 = $5.00 and the provincial part is 13.00 − 5.00 = $8.00. Going back, 113.00 ÷ 1.13 = 100.00, and 113.00 × 13 ÷ 113 = 13.00 of tax, which closes the loop.

The same $100.00 in Quebec shows the rounding. GST = 100.00 × 0.05 = $5.00. QST = 100.00 × 0.09975 = $9.975, which rounds up to $9.98 because half a cent goes up. The total is $114.98. Removing tax from $114.98 gives 114.98 ÷ 1.14975 = 100.0043, or $100.00, and $100.00 rings up to $114.98 again.

A $100.00 total in Quebec is less tidy. 100.00 ÷ 1.14975 = 86.9754, which rounds to $86.98, but $86.98 rings up as $4.35 GST + $8.68 QST = $100.01. The whole cent price that gives exactly $100.00 is $86.97, with $4.35 GST and $8.68 QST, and that is the answer the calculator gives.

Mistakes that catch people out

Taking the rate off the total. $113 − 13% is $98.31, not $100. Tax is always a smaller share of the total than the rate, 11.5% for 13% HST, so divide by 1.13 instead of subtracting.

Charging QST on the GST. That stopped on January 1, 2013. 9.975% of $105 is $10.47, against $9.98 on the $100 price, so compounding overcharges by about 49 cents on every $100.

Using the seller's province. GST and HST follow the place of supply, which for goods is where they are delivered. In the Canada Revenue Agency's own example, a mattress shipped from a store in British Columbia to a buyer in Ontario carries Ontario's 13% HST.

Keeping an old Nova Scotia rate. Nova Scotia's HST has been 14% since April 1, 2025. Invoice templates, spreadsheets and point of sale settings set up before then may still charge 15%.

Assuming the general rate covers everything. Basic groceries and prescription drugs are zero rated, Ontario refunds its 8% part at the till on books and children's clothing, and a private sale of a used car pays 12% PST in British Columbia and 13% retail sales tax in Ontario.

Popular calculations

Each link opens the calculator with the amount, the province and the direction filled in, and the figures can be changed once it is open.

$100 before tax in each province and territory

$100 in Alberta: $105.00$100 in British Columbia: $112.00$100 in Manitoba: $112.00$100 in New Brunswick: $115.00$100 in Newfoundland and Labrador: $115.00$100 in Northwest Territories: $105.00$100 in Nova Scotia: $114.00$100 in Nunavut: $105.00$100 in Ontario: $113.00$100 in Prince Edward Island: $115.00$100 in Quebec: $114.98$100 in Saskatchewan: $111.00$100 in Yukon: $105.00

Taking the tax out of a total

$113 in Ontario: $100.00 before tax$115 in New Brunswick: $100.00 before tax$114 in Nova Scotia: $100.00 before tax$114.98 in Quebec: $100.00 before tax$1,149.75 in Quebec: $1,000.00 before tax$112 in British Columbia: $100.00 before tax$112 in Manitoba: $100.00 before tax$111 in Saskatchewan: $100.00 before tax$105 in Alberta: $100.00 before tax$100 in Quebec: $86.97 before tax$50 in Ontario: $44.25 before tax$1,000 in Ontario: $884.96 before tax

Larger purchases, including a $50,000 car

$1,000 in Ontario: $1,130.00$1,000 in Quebec: $1,149.75$1,000 in British Columbia: $1,120.00$50,000 car in Ontario: $56,500.00$50,000 car in Quebec: $57,487.50$50,000 car in Alberta: $52,500.00$50,000 car in British Columbia: $56,000.00$50,000 car in Nova Scotia: $57,000.00

How this was checked

The rates come from the CRA's GST/HST rates page, which records Nova Scotia's change to 14% on April 1, 2025, from Revenu Québec's rate table and calculation rules, and from the finance ministries of British Columbia, Saskatchewan and Manitoba, all read on September 21, 2026. The Quebec history is from the Finances Québec bulletin that announced the 2013 change.

The calculator reproduces the CRA's published British Columbia example exactly: $350.00 of expenses carries $17.50 GST and $24.50 PST, $392.00 in all. It reproduces Saskatchewan bulletin PST 33, where $45.00 taxed at 6% is $2.70, and that bulletin's 6/111 shortcut for backing PST out of takings agrees with it to the cent on 91% of totals from $0.01 to $2,000 and is never more than one cent apart. The tax fraction method, total × rate ÷ (1 + rate), which the CRA publishes as 5/105, 13/113 and 15/115, agrees on 94.6% of 2.6 million totals across all 13 places, again never more than a cent apart; the differences are the totals where rounding decides.

A separate recomputation in exact integer arithmetic matched the engine on 2.8 million prices: every cent from $0.01 to $2,000 in all 13 places, plus 200,000 random prices up to $100 million. Adding tax and then removing it returned the starting price on all 2.8 million round trips. The share of totals that no whole cent price can produce came out at 4.76% with GST only, 11.50% in Ontario and 13.04% where HST is 15%, exactly the tax share of a total each time. Every address in the lists above was opened and checked for a distinct title, the right answer and clean exports, at desktop, tablet and phone widths.

Common questions

What is the difference between GST, HST, PST, RST and QST?

GST is the 5% federal tax charged everywhere in Canada. HST combines the GST and a provincial tax into one charge: 13% in Ontario, 14% in Nova Scotia and 15% in New Brunswick, Newfoundland and Labrador and Prince Edward Island. PST in British Columbia (7%) and Saskatchewan (6%), Manitoba's 7% retail sales tax (RST) and Quebec's 9.975% QST are separate taxes charged beside the GST, each on the price before tax.

How do I work out HST backwards from a total?

Divide the total by 1 plus the rate. An Ontario total of $113 ÷ 1.13 = $100 before tax, so the HST is $13. Or multiply the total by the tax fraction, 13/113 in Ontario, 14/114 in Nova Scotia and 15/115 where HST is 15%. Taking 13% off $113 gives $98.31, which is $1.69 too low.

What is the HST rate in Nova Scotia?

14% since April 1, 2025, made up of the 5% GST and a 9% provincial part. Before that date it was 15%, with a 10% provincial part. A $100 purchase in Nova Scotia now comes to $114.00.

Is QST charged on top of GST?

No. Since January 1, 2013 the 9.975% QST has been calculated on the selling price excluding the GST. Before 2013 the QST was 9.5% charged on the price including GST, and 9.5% × 1.05 = 9.975%, which is where the current rate comes from. A $100 purchase in Quebec carries $5.00 GST and $9.98 QST, $114.98 in all.

Which provinces and territories have no provincial sales tax?

Alberta, Yukon, the Northwest Territories and Nunavut. Only the 5% GST applies, so $100 before tax comes to $105.00. Local charges such as hotel room levies are separate and not included here.

Why is my receipt a cent different from the calculator?

Each tax is rounded to the nearest cent, half a cent up, and a till may round the whole bill rather than each item. Revenu Québec also lets a register use one combined 14.975% rate or two separate rates: on $1.10 the first gives $0.16 of tax and the second $0.17. The CRA's own calculator warns that results can differ by a cent or two.

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