Back to Knowledge Base
Credit & Finance5 min readJanuary 15, 2026

3 Critical Credit Mistakes to Avoid When Buying a Home

3 Critical Credit Mistakes to Avoid When Buying a Home

Your credit score is the gatekeeper to your mortgage approval, and even small missteps during the homebuying process can have outsized consequences. Here are three critical credit mistakes that Hawaii homebuyers must avoid — and what to do instead.

Mistake #1: Making Large Purchases Before Closing

This is the most common and most damaging mistake homebuyers make. Once you're pre-approved or in escrow, resist the urge to buy new furniture, a car, or any other large purchase on credit.

Why it matters: Lenders pull your credit again just before closing. New debt increases your DTI ratio and can drop your credit score, potentially disqualifying you from the loan you were approved for. Even if you can "afford" the new purchase, the timing can kill your mortgage.

What to do instead: Wait until after closing to make any significant purchases. That beautiful new couch will still be available after you get the keys to your new Hawaii home.

Mistake #2: Opening or Closing Credit Accounts

During the mortgage process, your credit profile should remain as stable as possible. Opening new credit cards — even store cards with tempting discounts — creates hard inquiries that lower your score and changes your credit utilization ratios.

Equally dangerous is closing old credit accounts. This reduces your total available credit, which can increase your utilization ratio and shorten your credit history — both negative factors for your score.

What to do instead: Keep your credit accounts exactly as they are from pre-approval through closing. Don't open anything new, and don't close anything existing.

Mistake #3: Paying Off Collections Without Guidance

It seems counterintuitive, but paying off old collection accounts without proper guidance can actually lower your credit score temporarily. When you make a payment on an old collection, it updates the "last activity" date, making the negative item appear more recent to scoring models.

What to do instead: Consult with your mortgage lender before paying off any collections or charged-off accounts. Your lender can advise on the best strategy — sometimes a "pay for delete" arrangement is better than a simple payment, and sometimes it's best to leave old collections alone until after closing.

Bonus Tip: Monitor Your Credit

Sign up for free credit monitoring through your bank or a service like Credit Karma. Check your reports regularly for errors and unauthorized accounts. If you find errors, dispute them through the credit bureaus — this is one of the fastest ways to improve your score legitimately.

The Bottom Line

Your credit score is a living, breathing number that responds to your financial behavior in real-time. During the homebuying process, treat it like a fragile artifact: protect it, don't disturb it, and consult your lender before making any financial moves that could affect it.

Written by

Jay Miller

Mortgage Loan Originator at CMG Home Loans | NMLS #657301

(808) 429-0811