Use our free reverse sales tax calculator to find the amount before tax from a total including HST, GST, PST or QST in any Canadian province. Updated for 2026 tax rates. Perfect for businesses, freelancers and accountants.

May 8, 2025 - A reverse sales tax calculator is a tool that allows you to calculate the pre-tax price from a total amount that already includes sales tax. It’s the opposite of adding tax you’re removing it to find the original price.

This reverse tax calculator will help you to know the purchase/sell amount before and after tax apply.

This free calculator is handy for determining sales taxes in Canada. Provincial, federal and harmonized taxes are automatically calculated for the province selected. Calculates in both directions – get totals from subtotals and reverse calculates subtotals from totals.

Sales tax calculator to reverse calculate the sales tax paid and the price paid before taxes. Tax can be a state sales tax, use tax and a local sales tax. Calculate net price and sales tax amounts.

June 25, 2024 - To calculate sales tax backward, follow this formula. The price before HST is equal to the total price with tax minus the retail sales tax. The sales tax rate equals the sales tax percentage divided by 100.

Use our free reverse sales tax calculator to find the amount before tax from a total including HST, GST, PST or QST in any Canadian province. Updated for 2025 tax rates. Perfect for businesses, freelancers and accountants.

September 25, 2024 - Whether to record the sales tax portion of a refund or to provide greater transparency to your customers about the components of their purchase, there are several reasons you might need to calculate sales tax backwards. For example, if you’ve lost a receipt, and you’re looking at your credit card statement, you would only see the final selling price. To find out the amount of tax, you need to work backwards. This will let you find separate out the tax from the original price of the item. To determine the total amount of sales tax in the sales price, a simple formula can be used.

Pre-tax Amount = Total Amount / (1 + (Tax Rate / 100)) Once you have the pre-tax amount, you can also calculate how much tax was applied: ... You purchased an item and paid $108.90 including tax.

October 24, 2024 - Enter the total price: Enter the amount into “Price including GST” at the bottom. This is your final amount, including GST. Get your price!’: Our calculator will instantly show you the pre-tax amount and the exact GST charged. 1. What is the GST rate in Canada? The federal GST rate is 5%, applied across most provinces. However, in provinces that use HST (Harmonized Sales Tax), GST is combined with PST (Provincial Sales Tax).

When you use a reverse sales tax calculator, you typically input the total amount paid (including tax) and the sales tax rate for the relevant jurisdiction. The calculator then computes the original price before tax.

Use this calculator to find out the amount of tax that applies to sales in Canada.

Reverse Calculation (Tax included): If you switch the "Amount includes tax" toggle to ON, the calculator works backward. This is useful if you have a total receipt amount (e.g., $114.98) and need to find the original sticker price (subtotal) before taxes were added.

October 28, 2024 - Remember, the net sales amount is what you received from the transaction which was not subjected to tax. The total sales represent the entire amount received, including tax.

July 28, 2025 - To do that, you divide the total amount including sales tax by 1.[tax rate]. For example if the tax rate was 5%, you divide the total amount by 1.05. If the tax rate was 10%, you divide the total amount by 1.10.

April 26, 2025 - It’s the tax that businesses collect from customers when they make a purchase and then pass on to the government. But what about reverse sales tax? Reverse sales tax is a bit different. Instead of calculating how much sales tax you owe based on the price of an item or service, you’re working backward to figure out how much of the total amount paid by a customer represents the sales tax.

Calculate pre-tax prices in seconds with our reverse sales tax calculator template. Enter a total and rate to see original cost, tax amount, and visual breakdowns instantly.

August 1, 2022 - Use our online sales tax calculator to calculate how much sales tax you pay on a transaction. Reverse Sales Tax Calculator included.

You can calculate sales tax by deducting the total Price with tax from the price before tax.

February 15, 2016 - However this can be expressed as pretax/post-tax = 1/ 1+(1 * tax%); therefore pretax * (1+1 * tax%) = post-tax; therefore pretax * 1.09 = post-tax assuming a 9% tax rate.