To make an extra payment, just sign in to your Earnest account and click ‘Loan Details.’ You will find ‘Make an Extra Payment’ under the ‘Payment Options’ menu on the left side. Once there, you can enter the date and amount you would like to make an extra payment for. Finally, select "Schedule Payment" to submit your extra payment.
You may also refer to the visual below and follow the steps.
Earnest does not charge any prepayment fees, and extra payments will reduce the amount of interest your loan accrues.