A banking system operates to allocate funds in accounts in response to data bearing records in the form of paper financial checks. A mobile phone has a camera and a programmable memory. The memory stores phone user data, including a bank account number and an electronic signature. The camera can be used to capture an image of a paper check which has the phone user as the payee. The phone can wirelessly transmit the account number, the electronic signature, and the check image to a bank deposit system. The system can store the check image and the electronic signature in correlated relation in a deposit transaction record. The system can cause the phone user's bank account to be credited a cash value corresponding to the check value. Confirmation of the check deposit can be transmitted to the user's phone.