How to apply a line-level discount to a transaction in NetSuite SuiteTax with taxes from Tax Determination.

1. Go to Transactions > Sales > Enter Sales Orders > List.
2. Click Edit in the sales order's row.
3. Apply a discount.
   • To a single line: On the Items tab, after an existing item, select an item with a discount item type and click Add. This will apply the discount to the item directly before the discount item.
   • To multiple levels:

     1. On the Items tab, if there are multiple items listed, select the Subtotal item in the next line and click Add. This adds the amounts of the items previously listed into a single subtotal.

     2. In the next line, select an item with a discount item type and click Add. This will apply the discount to the subtotal.

4. Click Save.
5. Click Preview Tax.
6. Verify that the discount is in the Subtotal line in the Summary section.