Reverse Sales Tax Calculator

Price (excluding tax): Tax Rate (%):

Reverse Sales Tax Calculator

To calculate the pre-tax amount or original price before sales tax is applied, you can use a reverse sales tax calculator. Here's how you can estimate the pre-tax amount:

1. Determine the sales tax rate: Identify the sales tax rate applicable to your area. This can include both the state and local sales tax rates. You can refer to the Missouri Department of Revenue website or contact your local tax authority for the specific sales tax rate.

2. Determine the total cost including tax: Take the final amount you paid, which includes the sales tax. For example, let's assume you paid $108.20 for a product, including the sales tax.

3. Divide by the tax rate plus 1: Divide the total cost by 1 plus the sales tax rate in decimal form. For instance, if the sales tax rate is 0.082 (or 8.2%), you would divide $108.20 by 1 + 0.082. The result will be the pre-tax amount. In this case, the pre-tax amount would be approximately $100.

By using this method, you can estimate the original price before sales tax was added. However, keep in mind that this calculation assumes a single sales tax rate and doesn't account for any additional fees or discounts that may have been applied to the purchase.

If you need a more precise calculation or have complex sales tax scenarios, it's recommended to consult the Missouri Department of Revenue or a qualified tax professional for accurate information and personalized assistance.