Portfolio landlords live or die on coverage: rent in, mortgage and costs out, buffer left over. Lenders test it at stressed rates around 145% of mortgage payments for higher-rate taxpayers, and they read personal plus business statements together to confirm the buffer is real. Converted to Excel, recurring rental credits across accounts sum in one pivot, next to mortgage and cost debits, so the coverage position reads month by month.
Voids show up before they hurt. A missing rental credit with standing costs continuing is the exact pattern a coverage report catches in month one rather than at remortgage. Categorised rental income versus management fees, insurance, and maintenance also separates true yield from gross rent figures that flatter a spreadsheet.
Remortgage applications go faster with prepared files. Six months of statements converted to clean Excel with the Bank Statement Converter, plus a one-page summary of income, obligation totals, and reconciled balances, answers the broker's first three questions before they are asked.
Stress-test privately first. Convert the portfolio statements to Excel, compute the fixed-obligations ratio as the lender will, and fix thin months — overpayments paused, buffers rebuilt — a quarter before the product transfer window opens.