US mortgage underwriters ask for two to three months of bank statements to confirm what the application claims. They compare payroll credits against stated income, check that cash reserves cover closing costs plus several months of payments, and flag large or irregular deposits that need a paper trail. Converted to Excel, that review takes minutes: group recurring credits by payer, total monthly income, and sort every large deposit with its date and counterparty.
Large deposits get the most scrutiny because borrowed down payments change the risk picture. Underwriters typically question any single deposit above half a month's income that is not payroll. Sorting the converted rows by amount lists deposits by size with running balances around each one, so a borrower can attach gift letters or transfer records to exactly the lines the lender will ask about instead of re-explaining the whole statement.
Cash-flow patterns matter as much as totals. Mortgage reviewers look for steady or growing balances, rent payments leaving on time, and no unexplained overdrafts in the months before application. The running-balance column in the converted file gives average, minimum, and maximum monthly balances, which lets applicants spot a problem month and wait one more cycle before applying.
Self-employed borrowers face the strictest reads because tax returns understate take-home pay. Twelve to twenty-four months of statements with business-like credits separated from personal spending tell the real affordability story. Converting those files before the lender asks turns a stressful document request into a prepared file with income and obligations already totalled.
To preview the review, convert two recent statements to clean Excel with the Bank Statement Converter and hand your loan officer a spreadsheet that matches the PDFs line for line.