The servicer must calculate a scheduled UPB only for:
- monthly payment portfolio mortgage loans that are the scheduled/scheduled remittance type, and
- biweekly and monthly payment scheduled/scheduled remittance type mortgage loans that are in MBS pools.
The calculations are the same for both delivery types; however, they will differ depending on the due date of the mortgage loan installments and whether the mortgage loan payments are:
- delinquent, or
For more information see Investor Reporting Manual Chapter 2-04, Reporting Specific Payment Transactions to Fannie Mae (02/14/2018)