Mortgage Myths That Trip Up First-Time Buyers

The 20% figure has roots in conventional lending history, but today's mortgage landscape is far more flexible. FHA loans — insured by the Federal Housing Administration — allow down payments as low as 3.5% for borrowers with qualifying credit scores. Conventional loans backed by Fannie Mae and Freddie Mac offer programs starting at 3% down for eligible buyers. VA loans (for eligible veterans and service members) and USDA loans (for qualifying rural areas) can require zero down payment. The tradeoff for lower down payments is often the addition of mortgage insurance, but that cost must be weighed against years of additional saving time. For many buyers, first-time homebuyer programs at the state and local level can further reduce upfront costs.

Lenders use credit scores to assess risk, but the cutoff varies significantly depending on the loan program. FHA guidelines allow scores as low as 580 with a 3.5% down payment; scores between 500 and 579 may still qualify with 10% down. Conventional loans typically require higher scores — often 620 or above — but the exact threshold depends on the lender and loan structure. A lower score generally means a higher interest rate, which is why working to improve your credit before applying can save meaningful money over a 30-year term. See how credit scores shape mortgage offers for a detailed breakdown of how lenders use these numbers.

These two terms are often used interchangeably, but they represent very different stages of the lending process. Pre-qualification is typically a quick, informal assessment based on income and debt information you provide verbally or online — no documents verified. Pre-approval requires submitting pay stubs, tax returns, bank statements, and authorizing a hard credit pull. A pre-approval letter signals to sellers that you are a serious, financially vetted buyer. In competitive housing markets, many sellers will not accept an offer without one. Confusing the two can lead buyers to overestimate their purchasing power or lose out on properties they believed they were ready to buy.

PMI protects the lender — not the borrower — if a loan defaults, and it applies to conventional loans when the down payment is less than 20%. However, under the Homeowners Protection Act, borrowers have the right to request PMI cancellation when their loan balance reaches 80% of the home's original value. Lenders are required to automatically terminate PMI when the balance reaches 78% based on the original amortization schedule. Accelerated payments or rising home values can speed this timeline. Understanding what's inside your mortgage payment, including PMI, helps buyers plan accurately from the start.

This myth stops many buyers from comparing lenders, which can be a costly mistake. FICO and VantageScore models are specifically designed to encourage rate shopping by grouping mortgage-related hard inquiries made within a condensed window into one. The precise window varies by scoring model — generally 14 to 45 days — but the intent is the same: buyers should not be penalized for seeking competitive terms. Comparing offers from multiple lenders remains one of the most impactful financial decisions a buyer can make. Even a fraction of a percentage point difference in interest rate can translate to tens of thousands of dollars over the life of a loan. This connects directly to how mortgage rates influence affordability and home prices.