Transactions & Reporting > Sales (Money In) > Customer Settings > Calculate Customer Early Payment Discounts Before Taxes
                                
                                Calculate Customer Early Payment Discounts Before Taxes
To calculate customer early payment discounts before including the sales tax:
- In the Home window on the Setup menu, choose Settings.
 - Click on Customers and Sales, and then Discount.
 - Select the Calculate Early Payment Discounts Before Tax check box.
 - Click OK.