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Common Mortgage Mistakes and How to Avoid Them

Most mortgage mistakes aren’t dramatic. They’re small decisions made in a hurry that cost money for years. The good news is that each one is easy to avoid once you know what to watch for.

Reviewed by Patriot Home Mortgage compliance, October 2026 · 3 min read

1. Borrowing the most you can

There’s no single legal limit on how much of your income can go to a mortgage. Each loan program and lender sets its own debt-to-income limits, and some borrowers qualify for more than they’d be comfortable paying. Just because you’re approved for an amount doesn’t mean you should spend it.

Instead: set a budget based on your take-home pay and real monthly costs, then shop below your approval if that’s where you’re comfortable. Our guide to how much house you can afford shows how.

2. Not comparing offers

Rates and fees can vary from one lender to the next, and small differences add up over the life of a loan.

Instead: compare Loan Estimates from more than one lender. Mortgage credit checks within a short window count as a single inquiry, so comparing won’t hurt your credit the way many people fear.

3. Assuming one loan type fits everyone

Many buyers assume they need a conventional loan with 20% down. Depending on your situation, an FHA, VA or USDA loan may need far less down or have more flexible credit rules.

Instead: ask to see more than one option side by side. Our guide to choosing the right home loan compares them.

4. Forgetting about closing costs and other expenses

The down payment isn’t the only cash you’ll need. Closing costs, prepaid taxes and insurance, inspections and moving costs add up.

Instead: ask for an estimate of your total cash to close early, and keep an emergency fund separate from it.

5. Making credit changes right before or during the process

Opening a new card, financing a car or furniture, or even closing old accounts can change your credit score and your debt-to-income ratio. Paying off a card is usually helpful, but some moves can backfire.

Instead: talk to your loan officer before making any credit changes once you’ve started shopping for a home, and keep things steady until after closing.

6. Skipping the inspection

An appraisal protects the lender. A home inspection protects you. Skipping it to save money or win a bidding war can lead to costly surprises.

Instead: schedule a full inspection, plus specialized inspections where they make sense, such as sewer, radon, roof or well.

7. Going it alone

The process has many moving parts, and waiting until problems appear makes them harder to fix.

Instead: build your team early: a loan officer, a real estate agent and an inspector you trust. Ask questions whenever something isn’t clear.

A quick conversation can prevent most of these mistakes. A loan officer can review your budget, options and timeline before you start house hunting.

Talk to a Patriot loan officer

Every situation is different, and a short conversation is the quickest way to know what fits yours.

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This article is general information, not an offer to lend or a commitment to lend. All loans are subject to credit approval, underwriting and property valuation. Belem Servicing LLC, NMLS ID #715386 (NMLS Consumer Access).

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