What Is a GST/HST Calculator?

A GST/HST calculator helps you determine the tax amount and final price based on your province or territory in Canada. Since tax rates vary by region, manually calculating GST or HST can be confusing and time-consuming.

Our calculator automatically applies the correct GST or HST rate based on your selected province or territory and provides:

• Net amount before tax
• GST or HST amount
• Gross amount including tax
• Accurate province-based tax calculations
• Instant results with live updates

No formulas, no guesswork—just clear and accurate tax calculations.

Why Use a Canada GST/HST Calculator?

Using a reliable GST/HST calculator helps you:

• Avoid tax calculation errors
• Save time on invoices and receipts
• Ensure compliance with Canadian tax rules
• Accurately price products and services
• Instantly calculate tax for any province

Whether you’re a business owner, freelancer, or shopper, calculating GST or HST correctly ensures transparency and financial accuracy.

GST & HST Calculator by Province

Canada’s sales tax system varies by province. Our calculator supports all Canadian provinces and territories, including:

• GST-only provinces and territories
• HST provinces
• Automatic tax rate detection

Simply select your province or territory, enter the net amount, and the calculator instantly shows the tax amount and total cost. You can also calculate backward from the gross amount if needed.

This makes it ideal for:

• Small businesses
• Online sellers
• Accountants and bookkeepers
• Freelancers and contractors

How to Calculate GST/HST Amount Easily

Our GST/HST calculator lets you calculate tax in seconds. Just:

1. Select your province or territory
2. Choose or confirm the GST/HST rate
3. Enter the net amount (before tax)
4. Instantly see the tax amount and total price

You can also enter the gross amount to find the tax portion and net price automatically. Everything updates in real time for maximum convenience.

Total Price & Tax Breakdown Calculator

Need a clear tax breakdown? Our total GST/HST calculator provides a complete summary of:

• Amount before tax
• Exact GST or HST charged
• Final amount payable

This is especially useful for invoicing, budgeting, expense tracking, and financial planning. You’ll always know exactly how much tax is being applied and why.

Why Choose Our GST/HST Calculator?

• Free and easy to use
• Accurate province-based tax rates
• Instant calculations with live updates
• Mobile-friendly and fast
• No registration or downloads required

Whether you’re calculating tax for a single purchase or managing multiple transactions, this calculator simplifies the process.

Start Calculating GST/HST Today

Understanding your taxes doesn’t have to be complicated. Use our GST/HST Calculator to calculate sales tax accurately, stay compliant, and make informed financial decisions.

Save time. Reduce errors. Calculate GST/HST the smart way—with the most reliable tax calculator for Canada.