Why Mortgage Myths Are So Sticky
Home financing is one of the most consequential financial decisions most Americans will ever make — and also one of the most misunderstood. Many buyers enter the process carrying assumptions absorbed from family, friends, or outdated cultural shorthand. These myths aren't harmless: they cause buyers to delay unnecessarily, disqualify themselves prematurely, or make costly decisions at the closing table.
The good news is that accurate information is available, and understanding how mortgages actually work puts you in a significantly stronger position. Whether you're just starting to think about buying or are already comparing lenders, separating fact from fiction is step one. For a broader look at buying-process misconceptions, real estate myths that trip up buyers and sellers covers common misbeliefs beyond just financing.
Myth
You need a 20% down payment to buy a home.
Fact
Many loan programs allow down payments of 3% to 3.5%, and some government-backed loans require no down payment at all.
The 20% figure persists because it's the threshold at which most lenders waive private mortgage insurance (PMI) on conventional loans. But it is not a universal requirement. FHA loans accept down payments as low as 3.5% for borrowers with qualifying credit scores. Conventional programs backed by Fannie Mae and Freddie Mac offer 3% down options for eligible first-time buyers. VA and USDA loans, available to qualifying borrowers, can require zero down. See our overview of government-backed home loan programs to understand eligibility for each.
Myth
You need a perfect credit score to qualify for a mortgage.
Fact
Most loan programs have minimum credit score thresholds well below 750 or 800, and some accept scores in the mid-500s.
Lenders evaluate the full picture of your finances — not just your credit score. FHA loans may be accessible to borrowers with scores as low as 580 (with 3.5% down) or even lower with a higher down payment, depending on the lender. Conventional loans generally require scores in the 620–640 range as a baseline, though higher scores do improve your rate. If you have misconceptions about how credit scoring works, the truth about credit score myths is worth reviewing before you apply.
Myth
Pre-qualification means a lender has approved your mortgage.
Fact
Pre-qualification is an informal estimate based on unverified information — it carries no commitment from a lender.
Pre-qualification typically involves answering questions about your income, debts, and assets without submitting documentation or undergoing a credit check. It gives you a rough sense of what you might qualify for. Pre-approval is meaningfully different: lenders verify your income, pull your credit, and review documentation before issuing a conditional commitment letter. In a competitive market, sellers often won't consider offers from buyers who are only pre-qualified. See why pre-approval matters when making offers for a fuller breakdown.
Myth
Getting pre-approved by one lender locks you into using them.
Fact
You are free to shop multiple lenders and are not obligated to use the lender who pre-approved you.
Shopping multiple lenders within a short window — typically 14 to 45 days, depending on the credit scoring model — is generally treated as a single credit inquiry for scoring purposes, limiting the impact on your credit. Comparing loan estimates across lenders can reveal meaningful differences in interest rates, fees, and loan terms. The Consumer Financial Protection Bureau (CFPB) encourages borrowers to get quotes from multiple sources rather than accepting the first offer. Getting pre-approved is a research step, not a binding commitment.
Myth
The down payment is the only upfront cost you need to save for.
Fact
Closing costs — typically 2%–5% of the loan amount — are a separate and significant upfront expense.
Closing costs include lender fees, title insurance, appraisal fees, prepaid property taxes, homeowners insurance, and more. On a $300,000 loan, that could mean $6,000–$15,000 in additional costs due at closing, on top of the down payment. Some of these costs can be rolled into the loan or offset through seller concessions in certain transactions, but buyers should plan for them as a distinct budget item. Our guide on documents to gather before applying for a home loan also covers the financial records you'll need to organize early.
Myth
A 30-year fixed-rate mortgage is always the best choice.
Fact
The right loan term and type depends on your financial goals, how long you plan to stay in the home, and your risk tolerance.
A 30-year fixed mortgage offers predictable payments and is appropriate for many buyers — but it's not universally optimal. A 15-year fixed loan typically carries a lower interest rate and builds equity faster, though monthly payments are higher. Adjustable-rate mortgages (ARMs) may offer lower initial rates for buyers who plan to sell or refinance within a defined period, though they carry rate risk after the fixed period ends. Understanding the trade-offs — including when refinancing might make sense later — is part of making a fully informed decision. The basics of mortgage refinancing can help you think through long-term strategy.
What These Myths Mean for Your Mortgage Strategy
Each of the myths above points to the same underlying issue: buyers often don't know what they don't know. The mortgage process involves multiple stages, a range of loan types, and lender-specific variations that no single rule of thumb captures accurately.
3%
Minimum down payment on some conventional loans
Fannie Mae and Freddie Mac back conventional loan programs that allow as little as 3% down for eligible first-time buyers.
2%–5%
Typical closing cost range as a share of loan amount
The CFPB estimates closing costs generally fall between 2% and 5% of the total loan amount, varying by lender, location, and loan type.
45 days
Rate-shopping window for mortgage credit inquiries
Under FICO scoring models, multiple mortgage credit inquiries within approximately 45 days are typically counted as a single inquiry.
Being informed means knowing that you have options — on down payments, on lenders, on loan terms — and that the right combination depends on your specific financial picture. If you want to understand the full arc from first conversation to closing day, the full mortgage timeline from pre-approval to closing is a practical next step. And before you apply, reviewing what lenders actually evaluate in a mortgage application can help you present the strongest possible case.
Don't Make Major Financial Changes During the Process
After receiving pre-approval, avoid opening new credit accounts, taking on new debt, changing jobs, or making large unexplained deposits. Lenders typically re-verify your financial profile shortly before closing, and significant changes can trigger re-underwriting or even lead to a loan denial at the last moment.
This article is for general informational and educational purposes only and does not constitute financial, legal, or mortgage advice. Loan programs, eligibility requirements, and terms vary by lender and by individual circumstances. Consult a licensed mortgage professional or financial adviser for guidance specific to your situation.



