GST/HST Calculator - Free Online Tool Updated Mar 2026
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Use GST/HST Calculator NowKey Takeaways
- Canada has more than one sales tax setup: Some places use only 5% GST, some use HST, and some use GST plus PST or QST.
- Nova Scotia changed recently: CRA says Nova Scotia HST dropped to 14% on April 1, 2025.
- Reverse tax matters: If you only have the final bill, you can divide by 1 plus the rate to find the before-tax price.
- Small businesses need to watch the threshold: Registration often starts when worldwide taxable supplies go over CAD 30,000.
- Zero-rated is not the same as exempt: Basic groceries may be taxed at 0%, while exempt supplies follow a different rule set.
What Is GST/HST?
GST/HST is Canada's main sales tax system for many goods and services. A GST/HST calculator helps you add tax to a price, remove tax from a total, or compare rates across provinces so you can read receipts, make invoices, and plan costs with less guesswork.
Quick answer
GST is the 5% federal goods and services tax. HST is a combined sales tax used in some provinces. Other provinces keep a separate PST, and Quebec uses QST with GST. That is why one Canada sales tax calculator is not enough unless it handles province rules correctly.
This topic is simple at the top level and more detailed once you look closer. Alberta, Yukon, Nunavut, and the Northwest Territories use only 5% GST. Ontario uses 13% HST. Quebec uses 5% GST plus 9.975% QST. British Columbia, Manitoba, and Saskatchewan use GST plus a separate PST. That mix is why a quick province selector matters.
Search intent for this page is mixed. Many people want to use the tool right away. Others want to confirm the current rate, remove tax from a total, or check if a sale should use the seller province or the customer province. CRA says the answer may depend on the place of supply, so the rate is not always based on where the business office is located.
If you also compare other tax tools, our sales tax calculator is useful for general before-tax and after-tax math, while our GST calculator may help if you need a simple GST-only workflow outside the Canada province-by-province setup.
How to Use This Calculator
Using the GST/HST calculator is easy once you know if your number is before tax or after tax. The steps below match the most common search intent for queries like GST/HST calculator Canada, reverse GST calculator, and HST calculator Ontario.
- Step 1: Pick your province or territory - Start with the place where the sale happens so the tool can load the right GST, HST, PST, or QST rate.
- Step 2: Choose add tax or remove tax - Use add tax for a price before tax, or remove tax when you only know the final total on the bill.
- Step 3: Enter the amount - Type the base price or total price and keep cents if you want a closer estimate for receipts or invoices.
- Step 4: Check the tax split - Look at the GST, HST, PST, or QST breakdown so you can see how the total was built.
- Step 5: Compare provinces if needed - Switch provinces to see how the same sale changes in Ontario, Quebec, Alberta, British Columbia, and other regions.
- Step 6: Use the result with care - Treat the output as a fast estimate and confirm special cases, place-of-supply rules, and filing details with CRA or Revenu Quebec.
Rounding tip
CRA notes that calculator results are estimates and rounding may change the final total by a cent or two. That is normal on some receipts, especially when many items are taxed together.
Most users fall into one of three simple paths. If you are shopping, you often want to add tax to the listed price. If you already have the total from a receipt, you want the reverse sales tax option. If you run a small business, you may want the province comparison view so you can see how the same invoice changes when the place of supply changes.
This calculator is also useful when you want to explain tax to clients or team members in plain words. A quick tax split can show why a CAD 1,000 price becomes CAD 1,130 in Ontario, CAD 1,120 in British Columbia, or CAD 1,050 in Alberta. That kind of side-by-side comparison is one of the easiest ways to avoid invoice mistakes.
GST/HST Formula Explained
The GST/HST formula is short. The part that changes is the rate. Once you know the province and whether you are adding tax or removing tax, the math is straightforward.
Total with tax = Price before tax x (1 + Tax rate)
Price before tax = Total with tax / (1 + Tax rate)
Worked example: add HST in Ontario
A monitor costs CAD 800 before tax in Ontario.
- Tax rate: 13% HST
- Tax amount: CAD 800 x 0.13 = CAD 104
- Total price: CAD 800 + CAD 104 = CAD 904
Worked example: remove HST in Nova Scotia
If the final bill is CAD 570 in Nova Scotia at 14% HST, the before-tax price is CAD 570 divided by 1.14, which is about CAD 500. The tax part is about CAD 70. This is one of the most common reverse tax searches.
Quebec is the place where many people pause. The same formula still works, but you need to use the combined total rate if you want the final number in one step. A CAD 1,500 taxable sale in Quebec uses 14.975% in total. That means the combined tax is about CAD 224.63 and the total becomes about CAD 1,724.63. If you need the split, the calculator can show GST and QST separately.
CRA also notes that when PST applies, GST is usually calculated on the price without PST. That detail matters for provinces like British Columbia and Saskatchewan because people sometimes stack one tax on the other by mistake. A clean calculator helps prevent that error.
Types of Sales Tax in Canada
Canada has a few tax labels, and that is where many searchers get confused. The names look similar, but they are not the same thing. A good GST/HST calculator should make those differences easy to understand.
- GST
- The 5% federal goods and services tax used across Canada. Some regions use only GST with no separate provincial sales tax.
- HST
- A harmonized sales tax that combines federal and provincial tax into one rate. It is used in Ontario and several Atlantic provinces.
- PST
- A separate provincial sales tax used in some provinces along with GST. British Columbia, Manitoba, and Saskatchewan follow this setup.
- QST
- Quebec sales tax. Quebec uses GST plus QST instead of HST, which is why Quebec invoices look different from Ontario invoices.
- Zero-rated supplies
- These are still taxable supplies, but at a 0% rate. CRA lists basic groceries and some medical devices as common examples.
- Exempt supplies
- These follow a different rule from zero-rated items. Common examples include many financial services, long-term residential rent, and some child care services.
| Type | Where you see it | Typical rate | Simple meaning |
|---|---|---|---|
| GST | AB, NT, NU, YT and as part of other systems | 5% | Federal sales tax |
| HST | ON, NB, NL, NS, PEI | 13% to 15% | One combined sales tax |
| PST | BC, MB, SK | 6% to 7% | Separate provincial tax added beside GST |
| QST | Quebec | 9.975% | Quebec sales tax added beside GST |
| Zero-rated | Basic groceries and some other supplies | 0% | Taxable, but at a zero rate |
| Exempt | Some rent, finance, child care, and public services | No GST/HST charged | Different rule set from zero-rated supplies |
GST vs HST vs PST vs QST
GST, HST, PST, and QST all affect the final price, but the user experience changes depending on where you are in Canada. This section is written for searchers who want a fast answer to GST vs HST and GST vs PST style queries.
| Tax | Who manages it | Best short use case | What to watch |
|---|---|---|---|
| GST | Federal government | Use when the province has no separate sales tax | Still check if the item is zero-rated or exempt |
| HST | Combined system through CRA | Use for Ontario and Atlantic HST provinces | Rates are not the same in every HST province |
| PST | Province | Use with GST in BC, MB, and SK | Do not assume GST is charged on top of PST |
| QST | Revenu Quebec | Use with GST for Quebec sales | Quebec rules and forms may differ from other provinces |
A simple way to think about it is this: HST is one combined rate, while GST plus PST or GST plus QST is a split rate. For many consumers the final number is what matters. For businesses, the split can matter because invoices, bookkeeping, and tax filings may need the tax shown correctly.
This is also where content gaps show up in competitor pages. Many pages list the rates but do not explain how the system feels in real life. If you are shopping online, moving between provinces, or sending an invoice to a customer in a different province, the tax setup may change even when the product price does not.
GST/HST Rates by Province in Canada
Canada's current sales tax rates range from 5% in GST-only regions to 15% in several HST provinces. Quebec uses 5% GST plus 9.975% QST, and Nova Scotia uses 14% HST as of April 1, 2025. That makes province selection the most important first step in any GST/HST calculator.
Fresh rate note
CRA updated the Nova Scotia HST rate to 14% starting April 1, 2025. Some old calculator pages still show 15%, so date-checked sources matter.
| Province or territory | GST or HST | PST or QST | Total rate | System |
|---|---|---|---|---|
| Alberta | 5% | 0% | 5% | GST only |
| British Columbia | 5% | 7% | 12% | GST + PST |
| Manitoba | 5% | 7% | 12% | GST + PST |
| New Brunswick | 15% | N/A | 15% | HST |
| Newfoundland and Labrador | 15% | N/A | 15% | HST |
| Northwest Territories | 5% | 0% | 5% | GST only |
| Nova Scotia | 14% | N/A | 14% | HST |
| Nunavut | 5% | 0% | 5% | GST only |
| Ontario | 13% | N/A | 13% | HST |
| Prince Edward Island | 15% | N/A | 15% | HST |
| Quebec | 5% | 9.975% | 14.975% | GST + QST |
| Saskatchewan | 5% | 6% | 11% | GST + PST |
| Yukon | 5% | 0% | 5% | GST only |
Place-of-supply example
CRA gives a clear example: if a store in British Columbia delivers a mattress to a customer in Ontario, the sale may use Ontario HST because the place of supply is Ontario. This is one reason province comparison tools can save time for online sellers.
The province table above is a strong featured-snippet target because it answers one of the most common Canada sales tax questions right away. It is also helpful for side-by-side what-if checks. A CAD 2,000 taxable purchase has about CAD 100 of tax in Alberta, CAD 220 in Saskatchewan, CAD 260 in Ontario, and almost CAD 300 in Quebec once GST and QST are combined.
If you need a wider money view after sales tax, our Canadian income tax calculator and Canadian capital gains calculator cover other parts of the tax picture that affect net cash flow.
GST/HST by Country
This calculator is built for Canada, so Canada should get the most attention. Still, many users compare Canada tax rules with other countries when they run cross-border sales, travel, or read mixed advice online. A short country table helps clear up that confusion.
| Country | System | Standard rate | Why it matters |
|---|---|---|---|
| Canada | GST, HST, PST, and QST | 5% to 15% | Place of supply matters, Quebec has QST, and some supplies are zero-rated or exempt. |
| United States | State and local sales tax | Varies by state and city | There is no federal GST or HST, so this tool does not apply to U.S. sales tax. |
| United Kingdom | VAT | 20% standard | One national VAT system, with reduced and zero rates for some goods and services. |
| Australia | GST | 10% | Australia uses one national GST rate instead of province-by-province sales tax rules. |
| India | GST | 0%, 5%, 12%, 18%, 28% | India uses multiple GST slabs, so rates and invoice rules are very different from Canada. |
Canada: Canada is more detailed than most people expect. You need to look at the type of supply, the place of supply, the province, and whether the item is taxable, zero-rated, or exempt. Quebec adds another layer because QST is separate from HST.
United States: The U.S. does not use GST or HST. It uses state and local sales tax instead. That means a GST/HST calculator is not the right tool for U.S. pricing, even if the shopping flow looks similar on the surface.
United Kingdom and Australia: These countries use one main national rate model, which is simpler for many buyers. That is why some global articles oversimplify Canada. Canada has more province-level variation.
India: India uses several GST slabs, so rate comparison content often shows GST terms that do not match Canadian tax rules. If you are searching for GST online, make sure the article is actually talking about Canada before you trust the rate.
Common Mistakes to Avoid
Most GST/HST mistakes are small on one receipt and expensive across many invoices. A simple calculator helps, but it is even better to know the error patterns before they happen.
| Mistake | What goes wrong | Example cost | Easy fix |
|---|---|---|---|
| Picking the wrong province | You charge the wrong sales tax rate | Using 13% instead of 12% on CAD 5,000 means a CAD 50 error | Check province first, then run the math |
| Using 15% for Nova Scotia | You rely on an old rate | On CAD 2,000, the gap is CAD 20 | Use a source updated after April 1, 2025 |
| Forgetting reverse tax math | You guess the tax from a final receipt total | A CAD 1,130 Ontario total is not CAD 1,000 plus a random estimate | Use the remove-tax option |
| Mixing up zero-rated and exempt | You treat all non-taxed items the same | That can affect bookkeeping and ITC claims | Check CRA supply type guidance |
| Ignoring place of supply | You charge based only on your office location | Cross-province sales can be priced wrong line by line | Review delivery province and supply rules |
| Skipping nil returns | You think no sales means no filing | Late filing can lead to penalties and extra cleanup work | File every reporting period if registered |
Simple prevention rule
Check four things in order: province, taxable status, before-tax or after-tax amount, and whether the sale is personal or business-related. That short checklist catches many avoidable errors.
Tax and Legal Points
CRA says the rate you charge depends on the place of supply and the type of supply. That means the right answer may change when a product is delivered to another province, when the item is zero-rated, or when a special case rule applies. This article gives general educational guidance, not a final legal ruling.
For businesses, one of the most searched questions is registration. The small supplier rule is often CAD 30,000 of worldwide taxable supplies, including zero-rated supplies, in a single calendar quarter or across the last four calendar quarters. Revenu Quebec uses the same core threshold concept for GST and QST, and it also notes that if you register for QST, you must also register for GST.
CRA also says registered businesses must file a GST/HST return for each reporting period, even if there was no business activity. That is called a nil return. Monthly and quarterly returns are usually due one month after the period ends. Annual return deadlines depend on your fiscal year-end and whether you had business income for the year.
Input tax credits can matter a lot for business cash flow. CRA says registrants may be able to recover GST/HST paid on eligible commercial expenses such as rent, fuel, office costs, professional fees, and some travel expenses if the records are complete. That is one reason some small businesses choose to register early, even before they are required to do so.
Professional check recommended
Special cases may apply to charities, digital supplies, real property, cross-border sales, public service bodies, or industry-specific rules. If a tax amount will affect a filing, contract, or audit trail, consider checking the official CRA or Revenu Quebec source or speaking with a tax professional.
Tips by Life and Work Stage
GST/HST decisions show up in different ways depending on where you are in life or work. This section uses simple examples so the advice feels practical instead of abstract.
- Student or first job
- You may mostly use this calculator for shopping, budgets, and side-gig sales. Focus on knowing the final price before you buy and learn the difference between taxed and zero-rated items.
- Young family
- Big purchases can make province rates feel more important. If you are planning a home, car, or furniture budget, even a one-point tax gap can change the final cash you need.
- Side hustle stage
- Watch the CAD 30,000 small supplier threshold. If sales start growing, check whether voluntary registration or required registration makes sense for your setup.
- Growing business
- At this stage, invoice accuracy and input tax credits may matter more than one-off shopping math. Keep receipts, track province rules, and review your filing period.
- Home buyer or mover
- Sales tax can show up on legal fees, moving costs, and some housing-related services. Related tools like our Canadian mortgage calculator, CMHC insurance calculator, and FHSA calculator can help with the wider planning side.
- Retirement or fixed-income planning
- Even small shopping tax gaps can affect a fixed monthly budget. A quick reverse-tax check helps when you want to compare receipts or understand how much of a bill was tax.
Low-stress approach
If you only need a fast personal estimate, focus on the final price. If you run a business, focus on the tax split, records, and filing rules. The same calculator can serve both jobs, but the way you read the result changes.
Real-World Scenarios
Real examples make sales tax easier to remember than rule lists. These short scenarios cover shopping, Quebec math, cross-province comparison, and a basic business-use case.
Scenario 1: Ontario laptop purchase
A laptop costs CAD 1,200 before tax in Ontario.
- HST: CAD 1,200 x 13% = CAD 156
- Total: CAD 1,356
- Why it matters: This is the classic add-tax case for shoppers.
Scenario 2: Alberta vs British Columbia comparison
The same CAD 2,000 appliance is priced before tax in two provinces.
- Alberta: 5% GST = CAD 100 tax, CAD 2,100 total
- British Columbia: 5% GST + 7% PST = CAD 240 tax, CAD 2,240 total
- Difference: CAD 140 more in British Columbia
Scenario 3: Quebec invoice with GST and QST
A designer sends a taxable Quebec invoice for CAD 1,500 before tax.
- GST: CAD 75
- QST: CAD 149.63
- Total: About CAD 1,724.63
Scenario 4: Reverse tax from a Nova Scotia total
A final bill is CAD 228 in Nova Scotia after 14% HST.
- Before-tax amount: CAD 228 / 1.14 = CAD 200
- HST amount: CAD 28
- Use case: Helpful for expense reviews and receipt checks
Scenario 5: Small business expense recovery
A registered business pays CAD 904 for a monitor in Ontario, including CAD 104 of HST. If the purchase is for commercial use and records are complete, CRA says the business may be able to claim that eligible HST back through an input tax credit.
Frequently Asked Questions
About This Calculator
Calculator name: GST/HST Calculator
Category: Tax calculator
Created by: CalculatorZone development and content team
Content reviewed: March 2026
Last updated: March 10, 2026
Methodology: This tool supports add-tax, remove-tax, province comparison, and separate tax breakdown use cases. It follows current province rates listed in the calculator configuration and aligns the article with CRA and Revenu Quebec guidance for general educational use.
Data sources: CRA GST/HST calculator and rates page, CRA which-rate guidance, CRA input tax credit guidance, CRA reporting guidance, RC4022, and Revenu Quebec GST/HST and QST pages.
Trusted Resources
Helpful Tools and Official Guidance
- Sales Tax Calculator - Use this for general before-tax and after-tax price math.
- GST Calculator - Helpful for simple GST-only checks and basic add/remove tax math.
- Canadian Income Tax Calculator - Compare sales tax costs with your broader after-tax budget.
- Canadian Capital Gains Calculator - Useful if you also want a wider Canada tax planning view.
- CRA GST/HST calculator and rates - Official rate table and CRA calculator, including the Nova Scotia 14% note.
- CRA which rate to charge - Best source for place-of-supply basics and current GST/HST rates.
- CRA type of supply guide - Explains taxable, zero-rated, and exempt supplies with examples.
- CRA input tax credits - Covers who may claim ITCs and what records matter.
- CRA reporting requirements and deadlines - Explains nil returns, deadlines, and electronic filing rules.
- Revenu Quebec GST/HST and QST - Official Quebec source for GST and QST obligations.
Disclaimer
Tax Disclaimer
This GST/HST calculator and article are for educational purposes only. Results are estimates and may differ from final tax amounts because of rounding, special rules, or supply-specific treatment.
Tax rules can change. If a result affects a filing, invoice, refund, or legal decision, consider checking the official source or speaking with a qualified tax professional.
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