Changes in Mortgage Credit Scoring: What Homebuyers and Real Estate Professionals Should Know
The mortgage industry is undergoing an important change in the way credit scores can be used to evaluate borrowers. Newer credit-scoring models are entering the conventional mortgage market, giving lenders additional options beyond the traditional credit scores that have been used for decades.
For homebuyers and the real estate professionals helping guide them through the process, understanding these changes can help make conversations about mortgage financing a little easier.
VantageScore 4.0 Is Expanding
One of the biggest changes involves VantageScore 4.0.
On September 9, 2026, Fannie Mae and Freddie Mac expanded the availability of VantageScore 4.0 to all approved lenders, removing the previous requirement for prior written approval. Approved lenders may now use VantageScore 4.0 when originating and selling eligible loans to Fannie Mae and Freddie Mac. (Source: FHFA)
This does not mean the traditional Classic FICO score is disappearing. Under FHFA’s transition policy, lenders may use either VantageScore 4.0 or Classic FICO for eligible loans sold to Fannie Mae and Freddie Mac. (Source: FHFA)
Why Is Mortgage Credit Scoring Changing?
The changes are part of a broader effort to modernize the mortgage industry’s credit-scoring system.
FHFA approved VantageScore 4.0 and FICO Score 10T as newer credit-scoring models following an evaluation process. According to FHFA, the transition is intended to support a more modern and competitive credit-scoring framework while maintaining appropriate risk-management standards. (Source: FHFA)
VantageScore 4.0 can also incorporate certain information that may not have traditionally been reflected in older scoring approaches, including rental-payment history when that information is available in a consumer’s credit file. (Source: FHFA)
For some prospective buyers, newer scoring methods could provide lenders with a different picture of their credit history. However, using a newer scoring model does not guarantee a higher credit score, mortgage approval, or better loan terms.
What About FICO Score 10T?
Another newer model, FICO Score 10T, has also been approved as part of the modernization effort, but it is not at the same stage of implementation.
As of September 2026, FICO Score 10T is expected to be adopted for loan deliveries to Fannie Mae and Freddie Mac at a later date, with timing still to be announced. (Source: FHFA)
For now, the more immediate change consumers and real estate professionals may encounter is the broader availability of VantageScore 4.0. (Source: Fannie Mae)
What Does This Mean for Homebuyers?
Homebuyers may begin encountering different credit-scoring models depending on their lender and loan. (Source: Fannie Mae)
Because credit-scoring models can evaluate information differently, the score a consumer sees through a credit-monitoring service may not necessarily be identical to the score used during the mortgage process.
That makes strong credit habits as important as ever. Prospective buyers should consider reviewing their credit reports for errors, paying bills on time, keeping balances manageable, and avoiding unnecessary new debt before applying for a mortgage.
It is also important to remember that credit scores are only one part of mortgage qualification. Income, debt, assets, down payment, loan type and other underwriting requirements can also influence eligibility and loan terms.
What Real Estate Professionals Should Know
Real estate professionals do not need to become credit experts, but being familiar with these changes can help them better prepare clients for the financing process.
If a buyer notices that their mortgage credit score differs from a score they have previously seen, it does not necessarily mean something is wrong. Different scoring models and credit-reporting information can produce different results.
Real estate professionals can encourage buyers to speak directly with their lender or mortgage professional about which credit-scoring model is being used and how their overall financial profile may affect their financing options.
The Bottom Line
Mortgage credit scoring is changing. VantageScore 4.0 is now broadly available to approved Fannie Mae and Freddie Mac lenders, while Classic FICO remains an option. FICO Score 10T is also part of the industry’s modernization plans, with additional implementation still ahead. (Source: FHFA)
For homebuyers, the changes mean they may encounter more than one type of credit score during their homebuying journey. For real estate professionals, staying informed about these updates can help them provide useful context and guide clients toward the appropriate mortgage professionals for questions about their individual financing options.
Sources
Federal Housing Finance Agency (FHFA). “Credit Scores.” Updated September 9, 2026.
https://www.fhfa.gov/policy/credit-scores
Fannie Mae. “Fannie Mae Broadens Availability of VantageScore 4.0.” September 9, 2026.
https://capitalmarkets.fanniemae.com/mortgage-backed-securities/fannie-mae-broadens-availability-vantagescore
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