Five Mortgage Myths Worth a Second Look

A familiar rule of thumb can hide an expensive trade-off. Check the loan rules, the verified information and the complete cost before deciding.

By Julie Linh Harrill Oct 23, 2026 4 min read 4,261 views

Five navy folded paper panels in a staggered row, a white sheet threaded between them over a photo of a home

Quick Facts: Ask Better Questions

Program rules

One rule does not fit every loan.
Verified details

Ask what has actually been reviewed.
Complete cost

Rate alone cannot decide value.
Household fit

Balance debt, cash and your plans.

“You need 20% down to buy”

Twenty percent is not a universal minimum. Eligible buyers may have low-down-payment conventional, FHA or no-down-payment VA and USDA options. Each has its own borrower, property and program rules.

A lower down payment means borrowing more. Compare mortgage insurance or program fees, closing costs and cash remaining afterward.

20% down generally avoids borrower-paid PMI at origination on conventional loans. It does not remove FHA mortgage insurance. No down payment does not mean no cash to close.

“Shopping lenders will ruin your credit”

Three written offers are prepared for comparison.

Mortgage rate shopping receives special treatment under common scoring models. Keep comparisons concentrated and ask how each lender’s credit review works.

Applications for different types of credit are not all combined into the same mortgage-shopping group.

14–45 days A model-dependent shopping window

Same-type mortgage inquiries in a qualifying window are generally grouped for scoring. Hard inquiries can still appear; this is not a promise of zero impact.

“Always pay the mortgage off as fast as possible”

Committed home equity and accessible liquid reserves serve different purposes.

Extra principal can reduce interest and shorten repayment. It also moves accessible cash into equity; access later may require a sale or new credit.

Balance reserves, other debt and long-term needs. Investments can lose value. Avoid calling mortgage interest savings a guaranteed investment return without reviewing fees, taxes and actual loan terms.

If you pay extra, confirm how the servicer applies the money and review applicable prepayment terms.

“Pre-qualification and pre-approval mean the same thing”

A borrower asks what has actually been verified.

Lenders do not always use these labels consistently. Ask which income, asset, debt and credit records were reviewed, and which property or underwriting conditions remain.

Pre-qualification

Often begins with estimated or self-reported information.

Pre-approval

May involve more documentation and a credit review.

Neither is final loan approval. Ask what was verified, what conditions remain and when the letter needs updating.

“The lowest rate always means the best deal”

A lower rate may require points or other upfront costs. Lender credits create another pricing trade-off. Compare written offers for the same loan and expected holding period.

Interest rate

The cost of borrowing the principal under the note.
APR

A broader annualized measure including certain finance charges.
Cash required

Points, fees, credits and cash to close affect reserves.
Your exit date

Compare payments, fees and remaining debt when you expect to leave the loan.

APR does not include every ownership cost or perfectly represent a short holding period. Review applicable “In 5 Years” Loan Estimate figures and ask for a comparison at your own expected exit.

Sources & further reading

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The Bottom Line

Replace rules of thumb with complete information. Explore eligible options, compare written offers and choose a payment and borrowing plan that fit your own circumstances.

Let’s Connect

Talk with a licensed loan officer.

This article is for general educational purposes only and isn’t a commitment to lend or an offer of credit. Loan programs, rates, fees, and eligibility vary by lender and borrower and may change without notice. Talk with a licensed loan officer about your situation.