Hi, LeeMerriman. A customer can pay more than their scheduled monthly Installment Agreement payment. Any advanced payments would be put towards the final payments of the Installment Agreement period. Meaning any extra payments made may end the contract sooner, but the next installment payment is still due at its normal time. Advanced payments will not lower the monthly payment. Customers must call Customer Care to make additional payments. You can find the details here https://www.boostmobile.com/support/faq/account-management/BoostUP.html.