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7 Ways to Boost Your Credit Score Before Applying for a Mortgage

David R. Bizousky
David R. Bizousky
March 7, 2026
6 min read

Your Credit Score Is Worth Tens of Thousands of Dollars

On a $350,000 30-year mortgage, the difference between a 680 and a 760 credit score can mean paying an extra $67,000 in interest over the life of the loan. That's not a typo — your credit score is worth serious money.

Here are 7 proven strategies to boost your score before you apply for a mortgage.

1. Pay Down Credit Card Balances (Biggest Impact)

Credit utilization — the percentage of your available credit you're using — makes up 30% of your FICO score. The magic number? Keep each card below 30% utilization, and ideally below 10%.

Quick win: If you have a $5,000 limit and a $2,500 balance (50% utilization), paying it down to $500 (10% utilization) could boost your score 30-50 points within one billing cycle.

2. Don't Close Old Credit Cards

Length of credit history accounts for 15% of your score. That old credit card you never use? Keep it open. Closing it shortens your credit history and reduces your total available credit (increasing utilization).

3. Become an Authorized User

Ask a family member with excellent credit to add you as an authorized user on their oldest credit card. Their positive payment history gets added to your credit report, potentially boosting your score significantly.

4. Dispute Errors on Your Credit Report

According to the FTC, 1 in 5 consumers has an error on at least one credit report. Pull your reports from all three bureaus (Equifax, Experian, TransUnion) and dispute any inaccuracies. Common errors include:

  • Accounts that aren't yours
  • Late payments that were actually on time
  • Incorrect balances or credit limits
  • Accounts listed as open that you closed

5. Set Up Autopay on Everything

Payment history is 35% of your score — the single biggest factor. Set up autopay for at least the minimum payment on every account. One missed payment can drop your score 50-100 points.

6. Don't Apply for New Credit

Each credit application triggers a hard inquiry, which can lower your score 5-10 points. In the 6 months before applying for a mortgage, avoid opening new credit cards, auto loans, or any other credit.

Exception: Multiple mortgage inquiries within 14-45 days count as a single inquiry, so it's okay to shop multiple lenders.

7. Use Experian Boost or Similar Services

Experian Boost lets you add utility, phone, and streaming service payments to your credit report. It's free and can add 10-15 points instantly.

How Long Does It Take?

  • Paying down balances: Shows up in 30-45 days
  • Dispute resolution: 30-60 days
  • Authorized user status: 30-60 days
  • Overall improvement: Most people can gain 30-80 points in 3-6 months

Get Started Today

Even if your credit isn't perfect, we have loan programs for a wide range of credit profiles. Our AI system evaluates your complete financial picture — not just your FICO score. Check what you qualify for now.

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Credit ScoreMortgage TipsCredit RepairHome Buying Tips
David R. Bizousky

David R. Bizousky

Founder & CEO, Slate Financial

David R. Bizousky is a financial services entrepreneur and the founder of Slate Financial, a leading alternative lending platform that has funded over $2.5 billion for 10,000+ businesses across all 50 states.

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