Calculating Interest Due

The interest calculation method is generally specified in the Loan DocumentsLoan DocumentsAll Fannie Mae-approved documents evidencing, securing, or guaranteeing the Mortgage Loan. .  ServicersServicersPrimary Person servicing the Mortgage Loan, including the originator, seller, or a third party. are required to calculate interest due for each Mortgage LoanMortgage LoanMortgage debt obligation evidenced, or when made will be evidenced, by the Loan Documents, or  a mortgage debt obligation with a Fannie Mae credit enhancement. as required by the Loan DocumentsLoan DocumentsAll Fannie Mae-approved documents evidencing, securing, or guaranteeing the Mortgage Loan. .  If the Loan DocumentsLoan DocumentsAll Fannie Mae-approved documents evidencing, securing, or guaranteeing the Mortgage Loan. do not contain any information regarding the interest calculation method, then ServicersServicersPrimary Person servicing the Mortgage Loan, including the originator, seller, or a third party. should assume a 30/360 accrual method.