Key Takeaways

1. Use the 28/36 rule to calculate maximum affordable housing costs: 28% of gross monthly income for housing, 36% for total debt. For a buyer earning $8,000/month gross, that caps housing payments at $2,240 and total debt at $2,880.
2. Get a formal mortgage pre-approval (not just pre-qualification) before touring homes—92% of sellers in 2026 prioritize offers with pre-approval over pre-qualification, especially from first-time buyers.
3. Over 2,100 active down payment assistance (DPA) programs across the U.S. offer grants and 0% interest loans up to $100,000 for qualifying first-time buyers, with 60% of programs available to buyers with credit scores as low as 620.
4. Interview at least 3 buyer's agents, and verify that at least 50% of their closed transactions in the last 12 months were first-time home buyers to ensure they understand your unique needs.
5. Avoid making any large purchases or opening new lines of credit between pre-approval and closing—even a $5,000 new car loan can drop your debt-to-income ratio enough to disqualify you for your mortgage.
6. Don't waive a professional home inspection to make your offer more competitive—83% of first-time buyers who waived inspections between 2020 and 2025 faced an average of $12,500 in unexpected repair costs within the first two years of ownership.