Use this reverse sales tax calculator to quickly calculate the price before tax from a total amount that already includes sales tax.
Simply enter the total price and the tax rate to determine the original price and the tax amount.
Reverse Sales Tax Calculator (Sales Tax De-Calculator)
A reverse sales tax calculator, also called a sales tax de-calculator, is used to determine the original price before sales tax was added. It works by dividing the total price by 1 plus the sales tax rate.
Example:
Total price: $107
Sales tax rate: 7%
Price before tax = 107 ÷ 1.07 = $100
Reverse sales tax formula:
The formula used to calculate the price before tax is:
Price before tax = Total price ÷ (1 + tax rate)
For example, if the total price is $108 and the tax rate is 8%, the price before tax is calculated by dividing 108 by 1.08.
State and local sales reverse tax calculator (de-calculator). You can use this calculator to calculate the sales tax that is included in receipts.
How to get price without tax?
This calculator is useful for following cases:
- If you have final price with included tax, and you know tax rate. With this calculator, you get price BEFORE TAX.
- If you know all amount which you receive, and you will must pay 5 % tax on net amount. How much is net amount and how much tax is in net amount?
- It helps you to calculate Reverse sales tax.
Reverse Sales Tax Calculation Examples
| Total Price | Tax Rate | Price Before Tax |
|---|---|---|
| $107.00 | 7% | $100.00 |
| $108.25 | 8.25% | $100.00 |
| $106.00 | 6% | $100.00 |
| $110.00 | 10% | $100.00 |
Frequently Asked Questions
How do you calculate reverse sales tax?
To calculate reverse sales tax, divide the total price including tax by
(1 + tax rate). This gives you the original price before tax.
What is the formula for reverse sales tax?
The formula is:
Price before tax = Total price ÷ (1 + tax rate).
Why use a reverse sales tax calculator?
A reverse sales tax calculator helps you quickly find the original price
before tax when you already know the total amount paid and the sales tax rate.
Can this calculator be used for VAT?
Yes. The same formula can be used for VAT calculations when you want to
remove tax from a total price and find the net amount before tax.
How do I remove tax from a total price?
To remove tax from a total price, enter the total amount and tax rate into
the reverse sales tax calculator. It will automatically calculate the pre-tax price.
What is the difference between sales tax and reverse sales tax?
Sales tax is added to a product price to get the final total. Reverse sales tax
works in the opposite direction by starting with the total price and calculating
the original amount before tax.
Reverse Sales Tax Calculator
You can also use our sales tax calculator
to calculate tax added to a price.
How do you remove sales tax from a price?
To remove sales tax from a price, divide the total amount by (1 + tax rate).
This will give you the price before tax.
Can this calculator work for different tax rates?
Yes. The reverse sales tax calculator works with any tax rate including
state and local sales taxes.
Reverse Sales Tax Calculator for Common Tax Rates
This reverse sales tax calculator works for any tax rate.
Below are examples showing how to calculate the price before tax
for several commonly used sales tax rates.
Reverse Sales Tax 5%
If the total price is $105 and the sales tax rate is 5%, the price before tax is:
$105 ÷ 1.05 = $100.
Reverse Sales Tax 6%
If the total price is $106 and the sales tax rate is 6%, the price before tax is:
$106 ÷ 1.06 = $100.
Reverse Sales Tax 7%
If the total price is $107 and the sales tax rate is 7%, the price before tax is:
$107 ÷ 1.07 = $100.
Reverse Sales Tax 8%
If the total price is $108 and the sales tax rate is 8%, the price before tax is:
$108 ÷ 1.08 = $100.
Reverse Sales Tax in Different States
Sales tax rates vary by state and sometimes by city or county.
This reverse sales tax calculator can be used for any state or local tax rate.
Simply enter the total price and the applicable tax rate to determine the
price before tax.
- California sales tax
- Texas sales tax
- New York sales tax
- Florida sales tax
- Washington sales tax
How to Remove Sales Tax from a Total Price
Removing sales tax from a price means calculating the original price before tax
when you only know the total amount paid. This process is also known as
reverse sales tax calculation.
To remove sales tax from a price, divide the total price by
(1 + the tax rate). The result is the price before tax.
Additional Questions
How do you remove sales tax from a price?
To remove sales tax from a total price, divide the total amount by
(1 + tax rate). This gives you the original price before tax.
Can this calculator work for different tax rates?
Yes. The reverse sales tax calculator works with any sales tax rate,
including state and local taxes used in different regions.
Disclaimer
The information provided on Accounting Portal is for general informational and educational purposes only and does not constitute professional accounting, tax, financial, or legal advice.
While we strive for accuracy and timeliness, no representation or warranty is made regarding completeness or reliability. Always consult a qualified professional before making any business, tax, or financial decisions.
Neither Accounting Portal nor its authors are liable for any loss or damage resulting from the use of this information.
© 2026 Accounting Portal. All rights reserved.