prepayment penalty

• pre-payment penalty

prepayment penalty (plural prepayment penalties)

1. An additional fee charged for paying off part of or the entirety of a loan ahead of the scheduled due date in order to compensate for the loss of interest income suffered by the creditor in such case.
   • 2012, Oren Bar-Gill, Seduction by Contract‎:

     Prepayment penalties can be viewed as a necessary supplement to the escalating-payments feature: If borrowers prepay before the end of the low-rate introductory period and thus avoid the high post-reset rates, then the escalating-payments feature becomes moot.