Paying your loan balance in full — including accrued interest — will close any installment loan. We will release any security documents (i.e., car or boat titles) seven (7) business days after we receive your payoff by check or ACH (over the phone), one (1) business day through a wire payoff. To determine your payoff amount, please contact a First Internet Bank Relationship Banker at bank@firstib.com or 1-888-873-3424.