The official American Bankers Association (ABA) nine-digit transit routing number utilized for First Internet Bank of Indiana is 074014187. This unique institutional identification code is required when setting up direct deposits, executing electronic funds transfers, initiating automated clearing house payments, and processing wire transactions linked to accounts held with the institution. Account holders can verify this routing number directly on their online banking dashboard, customer service disclosures, or at the bottom left corner of physical check leaflets.