FHFA's new mortgage credit score models: FICO 10T and VantageScore 4.0 explained

Quick answer, reviewed October 15, 2026: All Fannie Mae and Freddie Mac approved lenders may use VantageScore 4.0 for eligible loans without prior written approval following the September 9 expansion. Classic FICO remains permitted. FICO 10T is not currently eligible for delivery to those Enterprises. Approval of a model and operational loan-delivery eligibility are different. Your lender chooses the permitted model for your loan; availability does not mean every lender has switched.

This article was originally published April 23, 2026. The dated update below covers later developments; the April announcement context remains labeled separately. Educational only, not an offer of credit, approval or a promise of savings. Nothing here changes an existing loan's terms.

October 15, 2026 update: September developments

According to FHFA's credit-score page, updated October 2, September 9 expanded VantageScore 4.0 from the limited rollout to all Enterprise-approved lenders for eligible loans. Classic FICO remains a choice, with no announced retirement date. FICO 10T's distinct delivery status is still pending. Lenders must use the same model for all borrowers on a given Enterprise loan. The expansion does not itself change current credit-reporting requirements.

On September 30, the Enterprises announced upfront-fee adjustments to align pricing across Classic FICO and VantageScore 4.0. That is not proof that a particular borrower will pay less. Compare actual Loan Estimates, including fees, points and mortgage insurance.

Rocket's announced transition, not proof every loan has switched

In its September 28 announcement, Rocket described roughly four months of testing and an announced Q4 2026 default transition to VantageScore 4.0 for eligible direct-to-consumer products that currently allow its use. This review does not confirm that every eligible product has completed that transition.

Rocket said investment-property, second-home, home equity, FHA, jumbo and certain other loans would continue using FICO for now. Rocket Pro offers both VantageScore and FICO to broker partners, rather than making the same direct-to-consumer default claim.

Rocket reported improved qualification and pricing outcomes in its own testing, including average closing savings of $1,600 among clients who saved. These are lender-reported results, not independent nationwide findings, an average for all borrowers or a savings promise. Rocket's announcement also refers to eligible VA loans at Rocket; that is not evidence of a nationwide VA scoring-policy change. Income, debt, assets, property and underwriting still matter.

Original April 2026 announcement context

The April 22 joint announcement said HUD would permit FICO 10T and VantageScore 4.0 for FHA-insured underwriting. At that time, the Enterprises began a limited VantageScore 4.0 rollout with approved lenders. That limited-rollout description was April context, not the current Enterprise policy.

The FHA announcement is separate from Fannie Mae and Freddie Mac delivery rules. It does not establish which model every FHA lender uses today. Ask the lender about the current requirements for your exact program. Neither the April announcement nor the September Enterprise expansion changes an existing mortgage.

Why the old model needed an update

The Classic FICO scores used in mortgage today were built on credit data and modeling techniques that are decades old. They look at a snapshot of your credit profile and ask, "How risky does this look right now?" That worked well enough for a long time, but it has known limitations:

• It rewards a long, established credit history and penalizes thin-file borrowers, even responsible ones.
• It does not see on-time rent payments, which for renters are usually the largest monthly obligation in their life.
• It does not weigh balance trends over time as well as newer models can.
• It can miss meaningful improvements (or warnings) in a borrower's behavior because it lacks the resolution that more recent modeling provides.

The newer models, FICO 10T and VantageScore 4.0, were specifically designed to address these gaps.

FICO 10T explained

FICO 10T is the newest member of the FICO Score family. The "T" stands for trended data. Where Classic FICO looks at where your balances are today, FICO 10T looks at how your balances have moved over the last roughly 24 months. That distinction matters in practice:

• A borrower who carried a high balance last year but has been steadily paying it down looks better in a trended-data model than they would in a snapshot model.
• A borrower whose balances have been creeping up month after month looks riskier, even if their current utilization happens to be acceptable.
• Behavior is rewarded, not just position. Two borrowers with the same score today can look quite different if you look at the trajectory that got them there.

Scores from different models are not interchangeable. Trended data may change how a file is evaluated, but it does not establish the direction or size of any individual's score change. FICO 10T's model features do not make it eligible for Enterprise delivery today.

VantageScore 4.0 explained

VantageScore 4.0 is the score model from VantageScore Solutions, a joint venture of the three major credit bureaus. It also uses trended data, and it adds two features that matter for mortgage borrowers:

• Rent and utility payment history. When this data is reported to the credit bureaus, VantageScore 4.0 can incorporate it. For a renter with a long string of on-time payments, this can be the difference between being unscoreable and having a usable score.
• Improved treatment of thin-file and no-file consumers. The model is designed to score more consumers, including those who have historically been hard to evaluate using Classic FICO.

VantageScore 4.0 does not invent payment history out of thin air. The on-time rent and utility data has to be reported to the bureaus through a rent reporting service, a property manager, or a utility provider that contributes data. That part of the pipeline is still being built out across the industry, and it is one of the reasons this rollout is happening in stages rather than all at once.

Why this matters for borrowers

The practical impact depends on who you are.

For thin-file borrowers

If you have limited or no credit history but a long record of paying rent and bills on time, the new models are designed to help you. Today, thin-file borrowers often have to take extra steps (becoming an authorized user on a family member's card, opening secured cards, waiting longer to qualify) just to be scoreable for a mortgage. As VantageScore 4.0 acceptance expands, that picture should improve over time.

For on-time renters

Under VantageScore 4.0, reported rent data can be considered. This does not mean every rent payment is in a credit file or that reported rent guarantees a higher score or approval. Ask which data your lender can use.

For borrowers with steadily improving credit

Improving balances and payment history are useful credit habits. Trended-data models can consider patterns over time, but a different model may produce a higher or lower score. Do not assume your file will receive better pricing.

For borrowers whose habits have been deteriorating

The flip side: if your balances have been creeping up and you have been leaning harder on revolving credit, the new models may flag that more clearly than Classic FICO did. The fix is the same as it has always been, pay down balances, keep utilization low, and stop opening new credit while you are getting ready to apply.

For borrowers with existing mortgages

Nothing about your current loan, current rate, or current payment changes. This is about how brand-new mortgage applications are evaluated going forward.

How program and model requirements differ today

Broad availability is not universal adoption.

• FHA loans (HUD). Preserve the April permission announcement, but confirm current implementation with the lender. Enterprise loan-delivery rules are not FHA policy.
• Fannie Mae and Freddie Mac (FHFA). All approved lenders may use VantageScore 4.0 for eligible loans or continue with Classic FICO. FICO 10T is not currently eligible for delivery.
• VA, jumbo and other products. Rules vary by program and lender. Rocket's announcement does not establish a nationwide VA rule or extend the Enterprise policy to all products.
• Credit reports. FHFA says the VantageScore expansion does not initially change current Enterprise credit-reporting requirements. A model change is not automatically a change in the number of bureaus used.

Ask which model, bureau data and score-selection rule apply to your loan, and whether the model is supported for that product and channel.

Will this change my mortgage rate or my approval odds?

A different model may change the score, but it does not guarantee approval, lower rates or automatic savings. Qualification still depends on the full file. FHFA fee alignment and Rocket's testing results are not substitutes for your lender's underwriting and a dated Loan Estimate.

What borrowers should do right now

Practical steps you can take in the next 30 to 90 days, regardless of when the new models reach your specific lender:

1. Pay down revolving balances. Aim for utilization under 30 percent on each card, and ideally under 10 percent. This helps under both old and new models.
2. Do not close old accounts. Length of credit history still matters. Old accounts in good standing are quietly doing work for you.
3. Be careful about opening new credit in the months before applying. New accounts and hard inquiries can move your score in the wrong direction at the worst time.
4. If you are a renter, ask whether your rent is being reported. Some property managers report rent to the bureaus, others do not. There are also third-party services that can report on-time rent payments. Under VantageScore 4.0, when rent is reported, it can count.
5. Pull your reports and dispute anything wrong. Errors are common. Get them off the file before you start a mortgage application.
6. Get a real pre-approval, not a quick pre-qual. A documented review tells you exactly how your file looks today and what to clean up.

For a deeper look at how scores are actually used in mortgage underwriting, the related explainer What credit score do you really need? walks through how lenders weight the score against the rest of your file. If you are planning to buy soon, What does pre-approval actually mean? covers the documented approval process that this change ultimately flows through.

How this fits with the rest of the mortgage market

Credit scoring is one input. The rest of the mortgage market still moves the way it always has. Rates are set in the bond market, not by a credit model change, so a new score model does not directly move your rate. If you are trying to time a purchase or refinance, the rate context matters at least as much as the underwriting context. If that is where you are, the current mortgage rate page and the explainer on what actually moves mortgage rates are the better starting points.

On the affordability side, none of this changes the math of what you can carry month to month. The mortgage payment calculator and the affordability calculator are the same workhorses they were yesterday. Run your numbers, then talk to a lender about how your specific file looks under the new and old models.

Frequently asked questions

Does FICO 10T or VantageScore 4.0 help me if I have low credit utilization and a clean payment history?

Those are useful habits, but neither model guarantees a higher score, approval or lower costs. The result depends on the full reported file and the lender's permitted model and program.

Will my score go up automatically when lenders switch?

No. Different models compute scores differently, and results may be higher or lower. Do not treat a consumer-app score as interchangeable with the model your mortgage lender uses.

Does this change anything about my existing loan?

No. Your existing rate, payment, and terms are unaffected. The credit score model used to evaluate your loan was set when the loan was originated. This change applies to brand-new mortgage applications going forward.

Will FHA approvals get easier under FICO 10T and VantageScore 4.0?

The intent of the change is to expand access to responsible borrowers, including thin-file and on-time-renter profiles that the old models struggled to score. In practice, the impact on any individual borrower depends on the rest of their file (debt-to-income, reserves, property, program). It is not a blanket loosening of FHA underwriting standards.

When will my lender actually start using the new models?

Enterprise-approved lenders can already use VantageScore 4.0 for eligible loans, or continue using Classic FICO. FICO 10T is not currently eligible for Enterprise delivery. Other programs and channels have their own requirements. Ask your loan officer which model applies; no universal switch date is established here.

What about the move from a tri-merge to a bi-merge credit report?

That conversation has been part of the broader FHFA mortgage credit modernization effort but is being implemented on its own track. The exact final timing continues to be worked out and may evolve as the score model transition progresses.

What this means for you

More model choice can help lenders evaluate some files, but it is not a borrower-selected score upgrade. Confirm the model and requirements for your exact product and channel. Keep payments current, review your reports and compare documented offers. Nothing here changes your existing loan.

From my experience

Headlines do not tell you how your own application will be evaluated. Pay bills on time, manage balances and have documentation ready, then ask the lender which model it uses. A complete file matters beyond the score alone.

Ready to see how your file looks today?

If you are within a few months of buying or refinancing, ask for a documented lender review, run your payment, or check the rate context. Calculator results are educational estimates, not a credit-model prediction or a lender approval.