The phrase "installment amount" refers to the specific portion of money that needs to be paid regularly and over a period of time in order to fully repay a loan or debt. Full definition
You may pay more than your monthly installment amount at any time, using the payment method of your choice. (aessuccess.org)
That percentage takes the same relative bite out of a $ 25 investment or regular installment amount as it would out of a $ 250 or $ 2,500 lump - sum investment. (investopedia.com)
Each of the 120 qualifying payments must be made for the full scheduled installment amount and no later than 15 days after the scheduled payment due date. (getoutofdebt.org)