Buyers can effectively stress test affordability by modeling mortgage payments at least zero point five percent (fifty basis points) higher than current offered rates, such as six point one nine percent plus zero point five percent, to anticipate future increases. This modeling should include total monthly costs—principal, interest, taxes, insurance, utilities, and HOA fees—to gauge true financial impact. Getting fully underwritten pre-approval and comparing different loan types, including ARMs and fixed options, provides clarity. This approach helps buyers avoid surprises and sets realistic budgets amid changing rate environments.