Credit Scores Used for Mortgages: What Homebuyers Should Know

Why Your Mortgage Credit Score May Look Different

A credit score is a number calculated from one credit report using one scoring model. Change either the report or the model, and the number can change. That is why the same person can have many valid credit scores at the same time.

Three things usually explain the difference between the score in an app and the score a mortgage lender uses:

• A different model. Many apps show a FICO Score 8 or a VantageScore model. Conventional mortgages have traditionally used older Classic FICO versions.
• A different bureau. Experian, Equifax and TransUnion may not hold identical information, so each report can produce a different score.
• Different timing. A balance reported after your app updated, or a new account, can change the number a lender sees.

Mortgage lenders also tend to look at more than one score. Under Fannie Mae’s rules, when a borrower has three scores the lender uses the middle one; with two scores, the lower one (Fannie Mae Selling Guide B3-5.1-02).

What Credit Scores Do Mortgage Lenders Use in 2026?

There is no single mortgage credit score. The model depends on the type of loan, who will buy or insure it, and the lender. Here is the picture as of October 6, 2026:

A transition in progress

1. July 8, 2025FHFA interim policy

   Lenders may use either VantageScore 4.0 or Classic FICO for loans sold to Fannie Mae and Freddie Mac.

2. April 22, 2026FHA approval announced

   HUD announces FHA will permit VantageScore 4.0 and FICO Score 10T for FHA-insured mortgage underwriting.

3. September 9, 2026VantageScore 4.0 opened to all approved lenders

   Fannie Mae and Freddie Mac remove the prior-approval requirement for using VantageScore 4.0.

4. January 1, 2027FHA implementation date

   VantageScore 4.0 and FICO Score 10T become eligible alongside Classic FICO for FHA loans.

5. Date not announcedFICO Score 10T delivery and Classic FICO retirement

   FHFA says Classic FICO is expected to be retired at a future date that has not been announced.

Sources: FHFA: Credit Scores, Fannie Mae Lender Letter LL-2026-06, Freddie Mac: Credit Score Models and Reports Initiative, HUD: FHA INFO 2026-21.

What Does “Classic FICO” Mean?

“Classic FICO” is the name used for the specific older FICO versions that conventional mortgage lending has relied on for years. Each one is calculated from a different credit bureau’s report:

These are the Classic FICO versions listed in Fannie Mae Selling Guide B3-5.1-01. They remain eligible today, so you may still see them in a mortgage application, but they are no longer the only option for loans sold to Fannie Mae and Freddie Mac.

FICO Score 2 vs. FICO Score 8

FICO Score 2 is one of the Classic FICO mortgage scores and is calculated from your Experian report. FICO Score 8 is a newer, general-purpose FICO model that myFICO describes as the FICO Score most widely used by lenders, for products such as credit cards, personal loans and auto loans.

Both use a 300–850 range and look at the same broad factors, including payment history, amounts owed and length of credit history. Because they were built at different times, they can weigh some information differently, so the same credit report can produce two different numbers. Neither number is “wrong.” Each is designed for a different lending use.

If you are comparing FICO Score 8 with FICO Score 9 rather than with a mortgage score, see FICO Score 8 vs. FICO Score 9.

Do Mortgage Lenders Use FICO Score 8?

Generally not for conventional loans sold to Fannie Mae or Freddie Mac. Fannie Mae’s Selling Guide lists the Classic FICO versions and VantageScore 4.0 for those loans, and FICO Score 8 is not on that list. FHA’s eligible models are Classic FICO now, with VantageScore 4.0 and FICO Score 10T added starting January 1, 2027.

Lenders that make loans outside these programs can set their own credit standards, so it is possible for a particular lender to use a different model. FICO Score 8 still matters for many other kinds of credit, which is why it is useful to understand, but it should not be treated as “your mortgage score.”

What About FICO Score 10T and VantageScore 4.0?

Both are newer models that can consider trended data, meaning how your balances have changed over time rather than only a single snapshot. myFICO explains that FICO Score 10T looks at the previous 24 months or more of balance and credit-limit information.

A lender choosing one of these models does not mean your score will be higher or lower. The result depends on the information in your credit reports.

FHA, VA and USDA Mortgage Scores

Government-backed loans do not automatically follow Fannie Mae and Freddie Mac rules. Each program has its own requirements and timeline:

• FHA: FHA accepts Classic FICO today. According to FHA INFO 2026-21 (September 10, 2026), VantageScore 4.0 and FICO Score 10T become eligible models alongside Classic FICO starting January 1, 2027.
• VA: VA’s eligibility page says you must meet credit, income and occupancy requirements from both VA and your lender. It does not name a single required score model, so lender practices vary.
• USDA: USDA Rural Development’s guaranteed-loan credit training states that it “does not have a minimum published credit score, but many lenders do.” We did not find a USDA announcement adopting VantageScore 4.0 or FICO Score 10T as of October 6, 2026.

Program rules can change. If your loan type is FHA, VA or USDA, confirm the current requirements with your lender.

Why the Score You See Online Can Be Different

Credit apps often show a FICO Score 8 or a VantageScore model from one bureau. A mortgage lender may order reports from all three bureaus and use a different model.

What Should You Ask Your Mortgage Lender?

1. Which credit score model will you use for my loan: Classic FICO, VantageScore 4.0 or another model?
2. Will you pull reports from all three bureaus, and which score will you use if mine differ?
3. Is there a minimum score for this loan program, and is that your requirement or the program’s?
4. Will the application create a hard inquiry, and how should I handle shopping with other lenders?
5. If I find an error on my credit report, how does that affect the timing of my application?
6. Can I get a copy of the credit scores and key factors you used?

What to Do Before Applying for a Mortgage

• Get your free credit reports from all three bureaus at AnnualCreditReport.com and review them for accuracy, including any negative items.
• If something is inaccurate or incomplete, you can dispute it with the credit bureau at no cost. Learn how in our Credit Reports lessons.
• Avoid opening new credit accounts or making large purchases on credit without talking to your lender first. See credit decisions before and during the mortgage process.
• Keep paying every account on time; payment history is a major factor in every model discussed here.
• Ask your lender before closing or paying off accounts, since changes can affect your reports in different ways.

These steps help you understand where you stand; the full homebuyer credit readiness checklist covers more. They do not guarantee a particular score, loan approval or interest rate; those decisions are made by your lender.