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Credit Improvement

How Mortgage Credit Scores Work

Why lenders use FICO 2/4/5, how the middle score is chosen, and what changes your number.

6 min readBy NexGen Capital Corp · NMLS 1766649Updated 2026Credit Improvement

Short answer

Why lenders use FICO 2/4/5, how the middle score is chosen, and what changes your number.

Mortgage lenders pull all three bureaus and use the middle of your three FICO scores. For joint applicants, they use the lower middle score.

Tri-merge and middle score

Mortgage lenders pull all three bureaus and use the middle of your three FICO scores. For joint applicants, they use the lower middle score.

What moves the number

Payment history and utilization drive the largest changes. New credit and hard inquiries have smaller, shorter-term impact.

Key takeaways

  • Middle score matters, not the highest.
  • Utilization is a fast lever.

Frequently asked questions

Related mortgage option

Ready to apply this to a real loan? Review how FHA Loans work in Florida, or estimate your monthly payment before you talk to an advisor.

Sources

Program rules change and individual lender overlays apply. Verify specifics with the agency or with a licensed NexGen Capital advisor before relying on them.

Reviewed by NexGen Capital Corp

Written and reviewed by the licensed mortgage team at NexGen Capital Corp, a Florida mortgage brokerage (NMLS #1766649). Verify our license on NMLS Consumer Access.

Last reviewed: 2026

This article is educational and is not a commitment to lend or an offer of credit. Speak with a licensed NexGen advisor about your own situation.

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