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Reverse HST Calculator : How to Reverse Calculate HST and Why do I need it?



Reverse HST Calculator

Reverse HST Calculator : How to Reverse Calculate HST and Why do I need it?In the intricate landscape of Canadian taxation, the Harmonized Sales Tax (HST) plays a pivotal role in the cost of goods and services.

Reverse HST Calculator : How to Reverse Calculate HST and Why do I need it?

It’s essential for both individuals and businesses to understand the intricacies of the HST, especially when it comes to figuring out how much you’ve paid in taxes or determining the pre-tax price of an item. In this comprehensive guide, we delve into the world of the Reverse HST Calculator, explaining what it is, how it works, and why you need it.

Understanding Reverse HST Calculator

The Reverse Harmonized Sales Tax (HST) is a mechanism employed in regions with a harmonized sales tax system. This method allows certain individuals or organizations to claim a refund for the HST paid on eligible products or services. In other words, it’s a way to recoup the taxes you’ve paid.

Utilizing the Reverse HST Calculator

Whether for accounting or budgetary purposes, there are situations where you need to subtract the HST from the total price to determine the pre-tax cost. This is where the Reverse HST Calculator comes into play. To obtain the pre-tax cost, simply divide the total price, which includes the HST, by the HST rate. This calculation reveals the HST component of the overall cost.

Reverse HST Calculation Formula

  • To perform a reverse HST calculation, use the following formula:
  • Amount without sales tax = Amount with sales tax / (1+ (HST rate/100))
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This formula allows you to calculate the pre-tax price of an item based on the total amount you paid. For example, if the amount with sales tax is $200 and the HST rate is 13%, the pre-tax price would be $176.99. You can apply this formula to various purchases.

Why Do You Need a Reverse HST Calculator?

A Reverse HST Calculator proves invaluable in multiple scenarios:

  • Determining Tax Amounts: You can easily figure out the total tax you’ve paid on a specific item, which is particularly useful for tracking expenses.
  • Pre-Tax Pricing: When you need to know the pre-tax price of a product or service based on the total amount you paid, the calculator simplifies the process.
  • Ensuring Accuracy: You can verify the accuracy of invoices or sales receipts, ensuring there are no discrepancies.
  • Tax Liability: In cases where you’re seeking a credit or refund, the calculator helps you compute the associated tax liability accurately.

Reverse HST Calculator  FAQs

Q: Does HST typically come out to 13%?

A: No, the HST rate varies by province. In Ontario, it is 13%, while in New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador, it is 15%.

Q: How do you calculate quick-method HST?

A: Quick-method HST can be calculated using the formula: Original Price without HST = Final Price with HST / (1+ (HST rate/100))


Managing your finances, especially when it comes to taxes, can be a complex task. The Reverse HST Calculator simplifies this process, allowing you to quickly and accurately determine the pre-tax amount. Whether you’re a small business owner or an individual looking to keep track of your expenses, this tool is indispensable. We hope this article has provided you with all the information you need to master the Reverse HST Calculator. If you have any questions or need further assistance, please feel free to reach out.

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