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Buying a Home

Biggest Mistakes First-Time Home Buyers Make

Patrick Kevin Fagan Patrick Kevin Fagan Updated August 18, 2026

The biggest mistakes first-time buyers make include skipping pre-approval, buying at the top of their budget instead of below it, not shopping their mortgage rate, making large purchases before closing, choosing the wrong loan program, and going through the process without a trusted team.

Most of these mistakes are preventable with proper planning and a good loan officer who explains the process clearly. For a deeper dive into each mistake and how to avoid it, read about the biggest mistakes first-time buyers make.

Mistake #1: Not Getting Pre-Approved Before House Hunting

Getting pre-qualified is not the same as getting pre-approved. Pre-qualification is an estimate. Pre-approval means a lender has verified your income, assets, credit, and employment. Sellers take pre-approved buyers more seriously. You will know exactly what you can afford. Do not fall in love with a house you cannot buy.

Mistake #2: Spending Your Full Pre-Approval Amount

Lenders approve you for the maximum you can qualify for, not what is comfortable. Your pre-approval might say $400K, but your comfortable budget might be $320K. Factor in property taxes, insurance, HOA, maintenance, utilities, and your lifestyle. Do not become house-poor.

Mistake #3 : Not Shopping Your Mortgage Rate

A quarter percent rate difference on a $350K loan costs roughly $18,000 over 30 years. Shopping 3 to 5 lenders takes an afternoon and saves real money. All credit inquiries within a 14 to 45 day window count as one for scoring purposes.

Mistake #4 : Making Financial Changes Before Closing

Do not open new credit cards, buy a car, change jobs, move large sums of money, or make any significant financial changes between pre-approval and closing. Lenders re-verify your financial situation before funding. Any change can delay or kill your loan.

Mistake #5 : Skipping the Home Inspection

The $300 to $500 you save by skipping inspection could cost you $10,000 to $30,000 in hidden problems. Always get an inspection, even on new construction. Especially on new construction.

Mistake #6 : Choosing the Wrong Loan Program

FHA is not always the cheapest option. VA might save you thousands if you are eligible. Conventional with 5% down might beat FHA because PMI drops off. Shop programs, not just rates.

Mistake #7 : Going Through the Process Without Guidance

Your aunt who bought a house in 2015 does not know today's market, today's guidelines, or today's rates. Work with a loan officer and agent who do this every day. Good guidance is free (for buyers) and worth its weight in gold.

Mistake #8 : Waiving the Inspection to Compete

In competitive markets, buyers sometimes waive inspection to make their offer stronger. This is risky. A $400 inspection might reveal $15,000 in foundation issues. Instead of waiving, consider an inspection with a repair cap or an as-is clause.

Patrick's Take

"After helping thousands of first-time buyers over 23+ years, I can spot these mistakes from a mile away. The most expensive one is almost always not shopping the rate. People will spend three months comparing homes and 20 minutes choosing a lender. That backward approach can cost them tens of thousands. The second biggest is becoming house-poor: buying at the very top of what they are approved for and having nothing left for savings, fun, or emergencies. I always tell my clients: buy below your means, shop your rate, get the inspection, and keep your financial life boring between pre-approval and closing. Follow those four rules and you will be ahead of 90% of first-time buyers."
PF
Patrick Kevin Fagan
Patrick Kevin Fagan

About the Author

Patrick Kevin Fagan

Loan Officer and Realtor · AXEN Realty LLC

With over 23 years in loan origination and 18 years in real estate sales, Patrick helps first-time buyers, growing families, veterans, and investors navigate the home buying process across Greater San Antonio and the Texas Hill Country.

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