Lenders look closely at your debt-to-income ratio, which compares your monthly obligations to your gross monthly income. Car loans, student loans, credit card minimums, and personal loans all count toward that ratio. Paying down a balance matters most when it removes a monthly payment, because the payment is what lenders measure, not the total owed. A credit card with a small balance and a small minimum payment may barely move the needle. A car loan with a large monthly payment, on the other hand, can be the difference between approval and a smaller loan amount.

Credit cards deserve special attention because they affect both your ratio and your credit score. High utilization, meaning you are using a large share of your available limit, tends to pull scores down. Bringing balances well below the limits often lifts scores in a relatively short time, which can improve the pricing you are offered. Closing the accounts after paying them off is usually a mistake, since it shrinks your available credit and can raise utilization on the cards that remain. Student loans and auto loans are different, because they are installment debts and paying them off early does less for your score than most people expect.

Cash is the other half of this decision. Wiping out every debt can drain the savings you need for a down payment, closing costs, and a reserve after move-in. With rates still elevated, many buyers feel pressure to wait until everything is paid off, but waiting has its own cost, since home prices and rent do not pause while you plan. A smarter approach is to target the debts that carry high interest or large monthly payments, and keep enough cash on hand to close and handle surprises. Low-interest debt, such as a modest student loan, often makes sense to carry while you buy.