FICO and VantageScore 4.0 are now both approved credit score models for conventional mortgage loans sold to Fannie Mae and Freddie Mac. On April 22, 2026, FHFA and the GSEs announced that approved lenders may now use VantageScore 4.0 alongside Classic FICO for current Enterprise deliveries, with FICO Score 10T planned for future adoption. For mortgage loan officers, this is the most significant change to credit decisioning in a generation.
This guide explains how FICO and VantageScore 4.0 actually differ, where they agree, why the same borrower can score 10 to 30 points apart on the two models, and what each difference means for the borrowers in your pipeline.
| KEY TAKEAWAYS
FHFA and Fannie Mae approved VantageScore 4.0 for current GSE mortgage deliveries on April 22, 2026, with FICO Score 10T planned for future use. Classic FICO remains required for lenders not in the limited rollout.
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Table of Contents
What is the difference between FICO and VantageScore?
FICO and VantageScore are both consumer credit scoring models that produce a three digit number predicting the likelihood a borrower becomes seriously delinquent. They use the same underlying credit bureau data from Equifax, Experian, and TransUnion. The differences come from how each model weights and interprets that data.
FICO, developed by Fair Isaac Corporation, has been the dominant consumer credit score for decades. VantageScore was launched in 2006 as a joint venture among the three credit reporting companies. Both produce scores from 300 to 850 in their consumer facing versions. Both use payment history as the most important factor and credit utilization as the second most important factor. Both ship multiple model versions that coexist in the market for years.
The bureaus do not maintain separate data files for FICO and VantageScore. The same tradelines, balances, payment history, inquiries, and public records feed both models. When a borrower sees different scores in different apps, the cause is almost always different model versions, not different data.
Why did Fannie Mae and Freddie Mac add VantageScore 4.0 in 2026?
Fannie Mae and Freddie Mac added VantageScore 4.0 on April 22, 2026 to advance FHFA’s multiyear credit score modernization initiative. The goal is to introduce competition into a market that has used a single approved score model (Classic FICO) for decades, lower scoring costs over time, and expand the population of scoreable consumers.
The implementation is intentionally controlled. Fannie Mae is initially rolling out the change to a limited group of approved lenders to validate operational readiness across underwriting and delivery systems before broader availability. Lenders not participating in the limited rollout must continue to use Classic FICO from each bureau through a tri merge credit report until VantageScore 4.0 is made broadly available.
| KEY DATE
April 22, 2026: Fannie Mae and Freddie Mac began accepting VantageScore 4.0 for conventional mortgage deliveries. Source: Fannie Mae press release, FHFA announcement. |
How are FICO and VantageScore 4.0 the same?
FICO and VantageScore agree on the fundamentals of consumer credit risk. Both put payment history first. Late payments, charge offs, and public records remain the most damaging items on any score, regardless of which family is calculating the number. Both treat credit utilization (the percentage of available revolving credit currently in use) as the second most important driver.
Both models include rate shopping logic that softens the impact of multiple inquiries when a consumer is comparing offers for the same type of loan in a short window. Each family implements this differently, but the intent is the same: protect consumers who shop around responsibly.
Both families ship multiple versions that coexist in the market for years. One bank might show a borrower a FICO 8, another might use FICO 10T, and a free app might display VantageScore 4.0. Because models update on different schedules and lenders migrate slowly, 10 to 30 point differences between apps on the same day are normal, not errors.
How are FICO and VantageScore 4.0 different?
The differences between FICO and VantageScore matter most on borderline files. A borrower comfortably above 740 on either model will not suddenly fall below the threshold because of a different scoring formula. Borrowers near program eligibility cutoffs, conventional pricing breaks, or AUS approval thresholds are where modeling differences can quietly tip the outcome. The five most material differences for mortgage lending are trended data, thin file scoring, rate shopping windows, collections treatment, and tri bureau consistency.
Trended data: how does it change scoring?
Trended data refers to the use of historical balance and payment information over many months instead of a single point in time snapshot. FICO 10T explicitly uses trended bureau data on balances and payments. VantageScore 4.0 uses trended data combined with machine learning techniques. Traditional models like Classic FICO and FICO 8 rely primarily on the snapshot.
For loan officers, this means two things. First, a borrower who has been steadily paying down a balance for 18 months can score better under a trended model than under a snapshot model that only sees today’s balance. Second, a borrower whose balances have been slowly climbing, even while making minimums on time, can score worse than the snapshot would suggest. VantageScore 4.0 can be ordered without trended data and still produces a valid, reliable score; trended attributes are an enhancement, not a prerequisite.
Thin file scoring: who gets scored?
To generate a Classic FICO Score, a consumer typically needs at least one account that is six months old and at least one account reported within the last six months. VantageScore 4.0 is designed to score thin file consumers with as little as one month of credit history.
According to VantageScore’s research, the model captures roughly 33 million additional U.S. consumers who are unscoreable under conventional models. About 13 million of those consumers carry scores above 620, which is meaningful in mortgage lending. Approximately 4.9 million are mortgage eligible by age. VantageScore estimates this expansion represents around 2.7 million potential incremental mortgage loans and approximately $1 trillion in incremental loan opportunity.
For a loan officer, this translates into a real lead source: borrowers in your local market who carry a usable VantageScore but no FICO. They are still subject to AUS findings and underwriting, but the door is no longer closed at the score generation step.
Rate shopping window: how should borrowers cluster applications?
Many FICO versions ignore certain auto, mortgage, and student loan inquiries made within 30 days of scoring and group similar inquiries within roughly a 45 day window. VantageScore groups similar inquiries within a 14 day window. The takeaway for pre approval coaching is concrete: cluster mortgage inquiries inside 14 days. If a borrower shops with three lenders, the applications should be in the same two week window. The discipline is more important under VantageScore than under most FICO versions.
Collections and medical debt: how is each model different?
Older models often penalized collections heavily even after they were paid. FICO 9 and FICO 10 treat paid collections as neutral and reduce the weight of medical debt. VantageScore 3.0 and 4.0 also ignore paid collections. VantageScore 4.0 removes medical collections from the scoring calculation entirely. For borrowers with medical collection history, the difference between Classic FICO and VantageScore 4.0 on the same file can be material.
Tri bureau consistency: how predictable is the score?
VantageScore 4.0 uses the same data characteristics and the same scoring model at all three bureaus. According to VantageScore’s 2024 model assessment, in the mortgage segment 87 percent of consumers had VantageScore 4.0 scores within a 20 point range across the three bureaus, and 96 percent were within a 40 point range. For loan officers used to seeing wide spreads on Classic FICO across bureaus, this tighter clustering can change how middle score logic plays out for tri merge files.
FICO vs VantageScore 4.0 comparison table
The table below summarizes the practical differences. Save it as a one page reference for borrower conversations and processing team training.
| Feature | FICO (Classic / 10T) | VantageScore 4.0 | Practical impact |
| Score range | 300 to 850 (base); 250 to 900 for some industry scores | 300 to 850 | Shared range; FICO industry variants exist for autos and cards |
| Minimum credit history | One account 6+ months old and one updated in last 6 months | Can score thin file consumers with as little as 1 month of history | New to credit borrowers often see VantageScore before FICO |
| Rate shopping window | Ignores qualifying inquiries within 30 days; clusters within ~45 days | Groups similar inquiries within 14 days | Coach borrowers to cluster mortgage applications inside 14 days |
| Paid collections | FICO 9 / 10 ignore paid collections; reduce medical debt weight | VS 3.0 / 4.0 ignore paid collections; 4.0 removes medical collections entirely | Resolving collections helps more on newer models |
| Trended data | FICO 10T uses trended bureau data on balances and payments | VS 4.0 uses trended data and machine learning techniques | Steady paydowns reward borrowers; rising balances now penalized |
| Mortgage usage in 2026 | Classic FICO required outside limited rollout; 10T planned for future GSE use | Approved for current Enterprise deliveries (limited rollout, April 2026) | Expect Classic FICO, VS 4.0, and eventually 10T in pipelines |
What does this mean for loan officers in 2026?
If your shop is in the limited Fannie Mae rollout, you can now deliver loans using VantageScore 4.0 from each bureau through a tri merge credit report. If your shop is not in the rollout, your day to day ordering process does not change. Continue using Classic FICO from each bureau through a tri merge for loans sold to the GSEs.
Even outside the rollout, understanding both models matters now. Borrowers are seeing news coverage. They are checking their VantageScore in apps and asking why the number you quoted them is different. Loan officers who can speak fluently about both score families will be the calm, informed voice their borrowers need through the transition.
Loan officer talking points for borrower conversations
- Score variation across apps is normal. It reflects different model versions and refresh cycles, not errors in the credit file.
- Newer models reward steady paydown patterns. A borrower whose balances have been creeping up scores worse under FICO 10T and VantageScore 4.0 than under older models.
- Paid collections matter less now. FICO 9 and 10 ignore them; VantageScore 4.0 removes medical collections from scoring entirely.
- Mortgage rate shopping should happen inside 14 days. VantageScore’s window is tighter than most FICO versions, so the safer default is the shorter window.
- Thin file borrowers may now be scoreable under VantageScore 4.0 even when FICO returns insufficient data. This includes recent immigrants, younger borrowers, and consumers rebuilding credit.
Frequently asked questions about FICO vs VantageScore 4.0
Can I use VantageScore 4.0 for mortgage loans today?
Yes, but only if your shop is in the Fannie Mae or Freddie Mac limited rollout for approved lenders. Lenders outside the limited rollout must continue to use Classic FICO from each bureau through a tri merge credit report until VantageScore 4.0 is made broadly available. Lenders interested in joining can submit interest through Fannie Mae’s online form or contact their Fannie Mae representative.
What is the difference between FICO 10T and VantageScore 4.0?
FICO 10T and VantageScore 4.0 both use trended credit data and are both validated for GSE use. VantageScore 4.0 is approved for current Enterprise deliveries (limited rollout, April 2026). FICO 10T was validated by FHFA in 2022 and is planned for future GSE adoption. Fannie Mae and Freddie Mac will publish historical FICO Score 10T data in summer 2026.
Why is my FICO score different from my VantageScore?
FICO and VantageScore use the same bureau data but weight it differently. The most common reasons for a 10 to 30 point gap are differences in trended data treatment, thin file scoring rules, rate shopping windows, and how each model handles collections and medical debt. Different model versions and bureau refresh schedules also contribute to score variation.
Does VantageScore 4.0 require trended data?
No. VantageScore 4.0 can be ordered without trended data from all three bureaus and still produces a valid, reliable score. Trended data improves the model’s predictive power but is not required for score generation or for GSE eligibility.
What is the minimum credit history for VantageScore 4.0?
VantageScore 4.0 can score consumers with as little as one month of credit history. Classic FICO requires at least one account that is six months old and at least one account reported within the last six months.
Will Classic FICO still be used after VantageScore 4.0 rolls out?
Yes. Classic FICO remains an approved credit score model that can be used for loans sold to the GSEs. During the multi year transition, lenders may encounter Classic FICO, VantageScore 4.0, and eventually FICO 10T in mortgage pipelines, depending on a lender’s status in the limited rollout and the bureau setup at the time of pull.
How does VantageScore 4.0 handle medical collections?
VantageScore 4.0 removes medical collections from the scoring calculation entirely. FICO 9 and FICO 10 reduce the weight of medical debt but still consider it. Classic FICO treats medical collections like any other collection. Borrowers with medical collection history typically score higher on VantageScore 4.0 than on Classic FICO on the same credit file.
If you have questions about your current setup or want to talk through what this change means for your business, contact your Certified Credit account manager.
SOURCES
- Fannie Mae press release: Fannie Mae Announces Credit Score Model Updates to Advance Credit Score Modernization (April 22, 2026)
- FHFA news release: Homebuying Advances into New Era of Credit Score Competition (April 22, 2026)
- Freddie Mac: Freddie Mac Begins Accepting VantageScore 4.0 (April 22, 2026)
- Fannie Mae Credit Score Models Initiative Partners Playbook (April 2026)
- Fannie Mae Credit Score Models and Reports Initiative page
- FHFA Credit Scores page
- VantageScore Solutions: VantageScore 4.0 resources and Annual Model Assessment
- VantageScore Solutions: VantageScore FAQs
- Experian: Opening More Doors To Homeownership With Free Access To VantageScore 4.0 (October 14, 2025)
- TransUnion: TransUnion Applauds FHFA, HUD for Advancing VantageScore in Mortgage Lending (April 22, 2026)
