The following steps describe how to create a PO-based invoice if the tax charged by the supplier matches the tax amount on the purchase order.

1. Enter the T-Code /nMIRO to create a vendor invoice.
2. Enter the current date in the Invoice date field.
3. Select I1 in the tax type dropdown.
4. Enter an existing purchase order number.
   Verify that the Calculate tax checkbox is not selected.
5. Enter the total amount to be invoiced including the supplier-charged tax in the Amount field.
6. Enter the supplier-charged tax in the Tax amount field.
7. Click Enter.
8. Select the line item that includes the supplier-charged tax.
9. Click Simulate.
   Your transaction is now in balance and can be posted because the supplier-charged tax matches the tax amount calculated.