The first thing that the underwriters will monitor is any regular deposits which will most likely be a regular payment from any employment. These deposits are seen as normal and are not likely to be questioned any further. What will happen is that the underwriters will begin to review whether there are any additional deposits made throughout the statements. If you work a part-time job and your paycheck is cashed by the employer which you then deposit then this cannot be used as proof for your bank statement proof.