ACH stands for Automatic Clearing House and is a method of electronically depositing or withdrawing funds from an account. When you provide a check as payment on your installment loan application, you authorize us to process the payment as a check transaction. When the lender presents an ACH request to your bank, it will send the specified amount of loan fees and/or principal to the lender which was outlined in your loan agreement. If the payment is returned for reason of insufficient funds, the lender can and will present the ACH Authorization to your bank again.