Buying your first home or your fifth, the process is full of moving parts. One misstep can turn a solid investment into a money pit. After years of working with buyers and watching deals fall apart, I’ve seen the same costly mistakes pop up again and again. Here are 25 that could end up costing you thousands – and how to steer clear.
1. Financial Readiness Mistakes
1. Not checking your credit report early. Your credit score drives the interest rate you’ll be offered. A 30-point difference on a $350,000 loan could cost you upwards of $30,000 in interest over 30 years. Yet plenty of buyers skip this step. Errors are surprisingly common – in fact, more people are finding credit report errors and fixing them before they apply. Pull your reports from all three bureaus at least three months before you start house hunting.
2. Opening new credit accounts during the process. Don’t open a store card to buy furniture for the new place until after closing. Financing a new car or shifting balances between cards changes your credit utilization and can hurt your score. Underwriters often pull your credit again right before funding. Just one new account can delay or even kill your loan.
3. Only getting pre-qualified, not pre-approved. Pre-qualification is a quick estimate based on numbers you provide. Pre-approval means a lender has actually verified your income, assets, and credit, and is ready to write a loan. Sellers in multiple-offer situations will toss a pre-qualification letter aside. Get full pre-approval before you start touring homes.
4. Ignoring your debt-to-income ratio. Lenders want your total monthly debt payments – including your mortgage – to stay under about 36% of your gross income. If you have student loans, car payments, and credit cards, the mortgage you qualify for might be far smaller than you hoped. Calculate your DTI early so you’re looking at the right price range.
5. Draining your savings for the down payment. Putting every last dollar into the down payment leaves you nothing for closing costs, moving expenses, or a repair emergency. A boiler or AC unit can cost thousands to replace. Keep back at least three months of living expenses after closing.
2. Mortgage Strategy Mistakes
6. Shopping for the house before shopping for lenders. Rates, points, and fees vary significantly from one lender to the next. A difference of 0.5% on a $300,000 loan is roughly $90 per month, or $32,000 over 30 years. What’s more, the mortgage industry is not static – recent shifts at Fannie Mae and Freddie Mac can change which loan programs make sense. Compare quotes from at least three lenders.
7. Choosing the wrong loan program on autopilot. FHA, conventional, VA, ARM – every option has trade-offs. The default recommendation may not fit your timeline or budget. And guidelines keep changing; for example, Fannie and Freddie’s processing tools and equity requirements have seen recent updates. Ask your loan officer to walk through the pros and cons of each program for your situation.
8. Forgetting to budget for closing costs and PMI. The down payment isn’t the only upfront cost. Closing costs run an average of $6,500, according to a 2023 survey, covering everything from title insurance to prepaid taxes. If you’re putting down less than 20%, private mortgage insurance (PMI) adds another $150 to $300 monthly. Plan your budget around these expenses, not just the sticker price. Common closing costs include:
- Loan origination fees
- Title search and insurance
- Appraisal fee
- Prepaid property taxes
- Homeowner’s insurance
9. Not locking your rate – or locking for the wrong length. A rate lock protects you from market swings. If you lock for 60 days but close in 30, you’re paying for a longer lock than necessary. If you lock for 15 days and rates spike, you’re stuck with a higher payment. Coordinate your lock with your expected closing date and your lender’s timeline.
10. Ignoring the Loan Estimate and Closing Disclosure. These documents itemize every fee you’re charged. Compare them side by side. If the interest rate or something like a lender credit changes between the initial Loan Estimate and the final Closing Disclosure, ask why. Catching an error here can save you thousands.
3. Property Due Diligence Mistakes
11. Waiving the home inspection to win a bidding war. It’s tempting in a hot market, but it can backfire in a big way. A general inspection costs a few hundred dollars. A new roof averages $9,000; foundation repairs can run $7,000 or more. You don’t need to fix every issue, but you need to know what you’re buying before you’re legally committed.
12. Skipping specialist inspections. A general inspector can’t see inside a sewer line or behind a foundation. A sewer scope costs around $200 and can detect a $10,000 lateral line repair. The same applies to radon, termites, and HVAC systems. In older homes, these specialty checks are worth every penny.
13. Assuming the appraised value is the real market value. An appraisal’s main job is to justify the loan amount, not to price the home against all available data. If the appraisal comes in low, you might be able to negotiate the price down. But if the appraiser missed neighborhood trends, you could overpay. Do your own comp research as well.
14. Not digging into title issues, HOA rules, or liens. A title search can uncover unpaid property taxes, old judgments, or easements. And if you’re buying into a homeowners association, read the CC&Rs before you sign. Watch for special assessments, rental restrictions, and parking rules – they could change your lifestyle and your budget.
15. Buying in a flood zone without insurance. Many homes outside designated flood zones still get soaked when storms hit. Flood insurance through FEMA averages about $700 a year, but not having it when a sewer backs up can cost $25,000 or more. Check the flood maps and ask neighbors about local flooding patterns.
4. Offer and Closing Mistakes
16. Negotiating with your heart, not your head. Once you picture your kids playing in the yard, you’re at a disadvantage. You’ll bid $10,000 over budget or drop contingencies to win. Decide your absolute maximum before you make any offer, and stick to it. The right house for your budget is out there.
17. Not asking for seller concessions. Sellers are often more flexible than buyers assume. In a market where homes sit longer, you can ask for help with closing costs, a home warranty, or a repair credit. The worst they can say is no. The best case saves you cash.
18. Skipping the final walkthrough. The walkthrough is your last chance to verify the property is in the agreed condition. Look for new water stains, broken fixtures, or missing appliances. If you negotiated repairs, confirm they were actually completed. Don’t let a rushed closing cause you to waive this step.
19. Showing up to closing without the right documents. You’ll need a valid photo ID, sometimes two, and a cashier’s check made out exactly as the title company specifies. A small paperwork mistake can postpone your closing, tacking on fees and a day of anxiety. Double-check everything the night before.
20. Changing jobs or banking before the loan funds. Underwriters do a final income and employment check right before funding. Changing employers, opening a new bank account, or making a large untraceable deposit can raise red flags. Keep your financial situation steady for at least 30 days after closing paperwork is signed.
5. After Closing and Homeownership Mistakes
21. Forgetting to set up utilities and change your address. In the chaos of moving day, many buyers forget to schedule electricity, water, gas, and internet. Call ahead so the services are active when you arrive. Also update your address with the DMV, your bank, and your employer to avoid missing bills that could become collections.
22. Not cancelling PMI once you have 20% equity. Under the Homeowners Protection Act, you can ask your lender to remove PMI when your mortgage balance drops to 80% of the original value. Lenders don’t always do this automatically. Sending a letter once you’ve reached that threshold can save you $100 to $200 every month for years.
23. Ignoring your property tax reassessment. When a home changes hands, the county often reassesses it at the new sale price, which may be much higher than the previous owner’s tax bill. Your monthly payment could rise. Check your new assessment and, if it’s above fair value, file an appeal with the assessor’s office.
24. Deferring maintenance. New owners often put off the $300 fix that later becomes a $3,000 repair. Clogged gutters can lead to basement leaks and $10,000 water damage. A good rule is to set aside one to two percent of your home’s value each year for upkeep, and tackle small issues before they snowball.
25. Not building an emergency fund for home repairs. Your furnace dies in January, the repair costs $5,000, and your savings just took a hit from the down payment. Without an emergency fund, you’re left putting the bill on a credit card. After you close, rebuild your savings to cover at least three to six months of expenses, including your new mortgage.