In this transaction you are able to define default tax codes for invoice verification in Materials Management (MM) Module. This is an additional option which helps to improve a performance of the clerks posting those invoices.
Transaction: OMR2
IMG Path: Materials Management -> Logistics Invoice Verification -> Incoming Invoice -> Maintain Default Values for Tax Codes
Tables: T169V, T001
When you enter into the transaction you will see the list of defined default tax codes per company code.
Enter the fields according to your requirements.