What is a Credit Score?

Dan Green
Mortgage Expert Homebuyer.com
Updated December 21, 2024

A credit score represents the probability that a home buyer will make on-time payments to their mortgage lender for the next 90 days.

Understanding Credit Scores

In mortgage lending, credit scores are a probability statistic and objective measure of a home buyer's risk to a lender. Higher credit scores correlate to lower lending risk.

The most common mortgage credit scoring model is the FICO score, which was named for the Fair Isaac Corporation. FICO developed its credit model in 1956 and continues to fine-tune its predictive algorithm today.

FICO credit scores are based on five weighted categories that combine to generate a rating between 300 and 850, with 850 being the highest credit score possible.

Credit Score Requirements by Mortgage Type

Mortgage TypeMinimum FICO
FHA mortgage 580 minimum FICO
VA mortgage 620 minimum FICO
Conventional mortgage 620 minimum FICO
USDA mortgage 640 minimum FICO

A home buyer can get approved for a mortgage with a 500 FICO score or higher. Low-downpayment mortgage options are available for buyers with FICO scores of 580 or higher.

FICO Scores and Credit Ratings

FICO ScoreCredit Rating
740 FICO or higherExcellent credit
660-739 FICOAbove-average credit
620-659 FICOAverage credit
580-619 FICOBelow-average credit
579 FICO or lowerPoor credit

A home buyer with higher credit scores is more likely to make a mortgage payment in the next 90 days, which reduces the risk of mortgage default.

The Components of a Credit Score

The 5 Components of a Credit Score

Credit Score ComponentPercentage of Total Score
Payment history35% of the credit score
Amounts owed / maxed-out percentage30% of the credit score
Experience managing credit (in years)15% of the credit score
Types of credit extended10% of the credit score
Recent new credit extensions10% of the credit score

A mortgage credit score predicts a home buyer's next 90 days, relying on models that prove recent events affect future performance.

For example, a home buyer who missed a payment this month would likely miss a payment again next month, damaging their credit score. However, a missed payment two years ago is proved to have no bearing on the next 90 days and wouldn't affect their score by even one point.

The credit score algorithm forgives, and credit scores can be rebuilt.

Credit Score: A Real World Example

Imagine a first-time home buyer who gets pre-approved for a mortgage six months before planning to buy a home.

As part of the mortgage pre-approval, the buyer learns their credit score is 610, which is high enough to get approved for an FHA mortgage, but not high enough for the potentially lower mortgage rates that a conventional mortgage can offer. So, the buyer begins taking steps to make their credit score higher.

First, they keep their credit cards current and set digital reminders to pay every bill on time. Then, they use free cash to pay down smaller credit cards and shift around some balances. Lastly, they stop applying for new cards and then sign up for a credit building service.

Within 6 months, the home buyer's credit score climbs sharply, and the buyer qualifies for FHA, conventional, VA, and USDA mortgages, with new affordability options and lower monthly payments.

Common Questions About Credit Scores

How is a credit score calculated?

Credit scores are calculated using the information in your credit report, including your payment history to your creditors, overall credit utilization on your accounts, length of credit history in years, ages of your credit accounts, and the types of credit you use.

Can I get a mortgage with a low credit score?

Yes, home buyers get mortgages with low credit scores all the time. However, with a low credit score, interest rates might be slightly less favorable.

How can I improve my credit score quickly?

To improve your credit score quickly, check your credit report for errors, bring your delinquent bills current, and avoid opening new credit lines. Reputable credit-building services can help, too.

What factors will negatively impact my credit score?

Certain credit events will lower your credit score quickly, such as missing payments to creditors, spending near your credit limits, and applying for multiple new credit lines in a short period.

Is it possible for errors to appear on my credit report?

Yes, errors can appear on your credit report. These might include incorrect personal information, accounts that don't belong to you, or inaccurate account statuses. Regularly reviewing your credit report will help you identify and dispute any errors.

Ready to take the next step?

Now that you understand the basics, it's time to look at actual lenders. Freddie Mac research shows borrowers who compare lenders offer save thousands.

Compare mortgage lenders in 60 seconds

See your matches, then click a lender to finish your application online.

Free tool · No signup required

Homebuyer.com is not a lender or mortgage broker. We don't provide quotes or credit decisions. We display links to lenders who may offer services.

Woman using laptop while sitting on a couch