Total monthly costs—including principal, interest, property taxes, insurance, utilities, and HOA fees—significantly impact home affordability even with mortgage rates around six point one nine percent. Small expenses can shift affordability by ten to fifteen percent, meaning buyers who judge affordability on mortgage payments alone risk overstretching budgets. Understanding full monthly obligations helps buyers find sustainable homes and avoid financial stress. Calculating total cost ensures accurate budgeting and influences offer decisions, especially as the market focuses on comfort zones over simple price points.