For self-employed borrowers who aggressively write down income through legitimate business deductions, their Schedule C net profit often doesn't reflect their real earning capacity. Bank statement programs solve that gap.
The lender sums deposits over the statement window, applies an expense factor (typically 50% on business statements, 0% on personal), divides by the number of months, and uses that as monthly qualifying income.
A Pasadena CPA whose Schedule C shows $72K/year but whose business account deposits average $28K/month qualifies on $168K/year on a bank statement program — more than 2x what conventional would allow.