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Calculate Hst From Total Ontario

Reviewed by Calculator Editorial Team

When you make a purchase in Ontario, the total amount you pay includes the Harmonized Sales Tax (HST). This calculator helps you determine the HST component from the total amount paid.

How to Calculate HST from Total in Ontario

To calculate the HST from a total amount in Ontario, you need to know the current HST rate. In Ontario, the standard HST rate is 13%. Here's how to calculate it:

  1. Identify the total amount paid (including HST).
  2. Divide the total amount by 1.13 to find the pre-tax amount.
  3. Subtract the pre-tax amount from the total to find the HST amount.

This calculation helps you understand how much of your total purchase price is tax and how much is the actual product or service cost.

HST Calculation Formula

The formula to calculate HST from a total amount in Ontario is:

HST Amount = Total Amount - (Total Amount / (1 + HST Rate))

Where:

  • HST Rate = 13% (0.13) in Ontario
  • Total Amount = The total price you paid (including HST)

This formula works because it reverses the process of adding tax to the pre-tax amount. By dividing the total by 1.13, you get the pre-tax amount, and subtracting this from the total gives you the HST.

Worked Example

Let's say you bought a product for $113.00 in Ontario. Here's how to calculate the HST:

  1. Total Amount = $113.00
  2. Pre-tax Amount = $113.00 / 1.13 ≈ $100.00
  3. HST Amount = $113.00 - $100.00 = $13.00

So, the HST on this purchase was $13.00, and the actual product cost was $100.00.

Note

The HST rate in Ontario is currently 13%. If the rate changes, you'll need to use the new rate in your calculations.

Frequently Asked Questions

What is the current HST rate in Ontario?

The current HST rate in Ontario is 13%. This rate applies to most goods and services sold in the province.

Can I calculate HST for other provinces?

No, this calculator is specifically for Ontario. Different provinces have different tax rates and rules. You would need a separate calculator for other provinces.

Is the HST rate the same for all purchases in Ontario?

Yes, the standard HST rate of 13% applies to most purchases in Ontario. Some specific items or services may be exempt from HST.

How do I know if a purchase includes HST?

Most purchases in Ontario include HST. The total price you see on the receipt should include the HST. If you're unsure, check with the seller or the Ontario government's tax information.