Understanding mortgage affordability before purchasing a home can help borrowers make informed financial decisions and establish a realistic housing budget. Mortgage lenders generally evaluate factors such as income, debt-to-income ratio, employment history, available savings, and anticipated monthly housing expenses when reviewing a loan application. Down payment amounts, property taxes, homeowners insurance, and interest rates may also affect overall affordability. Using a mortgage affordability calculator can provide an estimate of purchasing power based on current financial information and help individuals better understand how different financial factors influence potential home financing options.