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Text Shelby

Shelby Weller

Mortgage Loan Officer

Education Center

Credit Score Optimization

How your FICO score is calculated and actionable steps to raise it before applying for a mortgage.

Your credit score is the single most important number in determining your mortgage interest rate. A difference of just 20 points can save you—or cost you—tens of thousands of dollars in interest over a 30-year loan.

How Your Score is Calculated

FICO (Fair Isaac Corporation) scores range from 300 to 850. The formula breaks down into five categories:

35%
Payment History The most crucial factor. Have you paid past credit accounts on time? A single 30-day late payment can tank your score.
30%
Amounts Owed (Utilization) How much of your available credit are you using? If you have a $10,000 credit limit and a $9,000 balance, you look risky. Keep balances below 30% of limits.
15%
Length of Credit History Older accounts are better. Don't close your oldest credit card, even if you don't use it.
10%
Credit Mix Lenders like to see a mix of revolving credit (cards) and installment loans (auto, student loans).
10%
New Credit Opening many new accounts in a short time lowers your score.

Actionable Fixes (30-60 Days)

  • Pay down revolving balances: The fastest way to boost your score is paying credit card balances below 10% of their limit. The score jump will happen as soon as the card reports to the bureaus (usually at statement closing).
  • Become an Authorized User: Have a parent with a flawless, old credit card? Ask them to add you as an authorized user. You inherit that card's perfect payment history.
  • Dispute Errors: 1 in 5 reports contain errors. Dispute incorrect late payments directly with the bureaus.

The Pre-approval Danger Zone

Once you are pre-approved, your credit is monitored continuously until closing day. Do NOT buy furniture on credit, finance a car, close a credit card, or co-sign a loan for someone else until after you have the keys to your new house. We have seen deals die the day before closing because a buyer financed a new refrigerator.

Need a professional credit review?

Schedule a Free Credit Analysis