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MBS Express Pool

Fannie Mae

Updated 10-31-2026

MBS Express Pool

An MBS pool for which the servicer remits "unscheduled" principal payments to Fannie Mae on the 4th business day of the month and "scheduled" principal and interest payments on the 18th calendar day (or the preceding business day if the 18th is not a business day).

Fannie Mae Glossary of Terms

Fannie Mae · p. 29

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