VantageScore 4.0 for Mortgages: What the Credit Score Change Means for Your Home Loan
Fannie Mae and Freddie Mac lenders can now use VantageScore 4.0 instead of Classic FICO. Here is what that means for your score, your fees and your application.
In this guide 7 sections
Since September 9, 2026, any lender approved by Fannie Mae and Freddie Mac can use VantageScore 4.0 for a mortgage, alongside Classic FICO. Your lender picks the model, not you. Upfront fees now match across both models as of September 30, so the score model alone should not change your price.
The VantageScore 4.0 mortgage change is the biggest shift in home-loan credit scoring in years, and it affects anyone planning to buy or refinance. This guide explains what changed, why your numbers may look different, and how to prepare. It is written for first-time buyers and for homeowners who last applied years ago. Coinpurse covers everyday money decisions in plain English, so we will skip the jargon and stick to what you can act on.
What Changed for Mortgage Credit Scores in 2026?
Fannie Mae and Freddie Mac now accept VantageScore 4.0 from every approved lender, with no special permission needed. Lenders may still use Classic FICO. The change started as a limited rollout in April 2026 and opened to all approved lenders on September 9, 2026.
The Federal Housing Finance Agency (FHFA) tracks the timeline on its credit scores page, last updated October 2, 2026. It lists four dates worth knowing. Rollout began April 22. Historical performance data for FICO 10T and VantageScore 4.0 was published July 1. All approved lenders gained access September 9. Fees were aligned September 30.
For decades, Classic FICO was the only score most mortgage lenders could use for loans sold to the two government-sponsored enterprises. Now there are two options on the table. That sounds like a small tweak, but it changes how some applications get read.
Classic FICO has not gone away. The FHFA says it is expected to be retired at a future date, but no date has been announced. The agency and the two enterprises have promised advance notice before anything changes.
How Does VantageScore 4.0 Differ From Classic FICO?
Both models turn your credit report into a three-digit number, usually between 300 and 850. They weigh the data differently, so your two scores can differ by a few points or more. Neither is the single true score. They are two formulas applied to the same file.
The Consumer Financial Protection Bureau (CFPB) makes this point plainly in its explainer on what a credit score is. It says you do not have just one score, because the scoring model, the data source and the calculation date can all vary. A model may even be chosen based on the loan type.
If you want a refresher on the basics, our guide to how credit scores work and the five factors behind your number covers payment history, balances and the rest. Those same factors feed both models. What differs is the weighting and how each model treats thin or recent files.
Here is a quick side-by-side view of what matters to a borrower today.
| Question | Classic FICO | VantageScore 4.0 |
|---|---|---|
| Accepted by Fannie Mae and Freddie Mac | Yes | Yes, since September 9, 2026 |
| Upfront fee treatment | Aligned | Aligned |
| Who picks the model | Your lender | Your lender |
| Retirement date announced | No | Not applicable |
Will My Mortgage Rate or Fees Change?
Probably not because of the model alone. On September 30, 2026, Fannie Mae and Freddie Mac aligned their upfront fees so a loan priced with VantageScore 4.0 is treated like one priced with Classic FICO. Your rate still depends on your actual score, down payment and loan type.
That alignment matters because it removes a reason for lenders to avoid the new model. Before it, lenders could face different pricing depending on which score they delivered. Now the pricing approach is consistent, according to the FHFA.
Your own number is still what drives the outcome. A borrower with a 740 on one model and a 725 on the other may land in a different pricing tier, since tiers often step in 20-point bands. That is why it pays to ask your lender which model they use before you apply.
Credit bureaus are competing for this business too. Equifax has said it will hold its $1 VantageScore 4.0 mortgage price through 2027, which could push more lenders toward the newer model. Lower data costs do not automatically reach you, but they make adoption easier.
Which Score Will My Lender Actually Use?
Your lender decides. The FHFA says lenders choose the model loan by loan, and they must use the same model for every borrower on that loan. You cannot demand a specific score, but you can ask which one the lender plans to pull.
The same-model rule affects couples. If two people apply together, both are scored under one model. If one partner has a long file and the other has a thin one, the model choice can swing the result. Ask the loan officer whether both applicants were scored the same way.
Reporting rules are not changing at first. The FHFA says the tri-merge and bi-merge requirements, which govern how many bureaus a lender pulls, stay as they are. So you should still expect a lender to check more than one credit report.
One more detail trips people up. FICO 10T, a newer FICO model, is approved but cannot yet be delivered to the two enterprises. The agency says it will issue guidance when that changes. Until then, treat it as a future option, not a current factor.
How to Prepare Your Credit Before You Apply
Preparation works the same under either model. Lower your balances, pay every bill on time and fix report errors. Start at least three to six months before you plan to apply, because new activity takes a billing cycle or two to show up.
The steps below are ordered by how quickly they pay off.
- Pull your free reports from all three bureaus and dispute any errors.
- Pay card balances down below 30 percent of each limit, and lower is better.
- Set up autopay so no payment is ever late.
- Avoid opening new accounts until after closing.
- Keep old accounts open so your average account age holds steady.
New credit deserves special care. A fresh card brings a hard inquiry and lowers your average account age. If you are tempted by a sign-up bonus, our breakdown of whether credit card rewards are worth it shows why timing matters, and a mortgage application is rarely the right moment.
Cash matters as much as credit. A strong score will not cover a thin down payment, so it helps to have a savings plan running alongside your credit work. Our guide on how to save a house down payment in 2026 explains why you often do not need a full 20 percent.
What if your score drops a few points before closing? Do not panic. Lenders pull scores at set moments, and a small change usually only matters if it crosses a pricing line. Ask your loan officer where those lines sit so you know how much room you have.
Homeowners who plan to refinance should pay attention too. A refinance is a new loan, so the lender scores you again under whichever model it picks that day. A score you saw during your last purchase may not match what the lender pulls now, even if your habits have not changed. Budget a little extra time to compare offers from more than one lender, since their model choices can differ.
What Are the Risks and Open Questions?
The biggest open question is how the two models perform over a full housing cycle. Trade groups disagree. Some research groups have questioned the performance claims made for the newer model, while its backers point to broader file coverage. Coinpurse's editors read the FHFA's published data as a starting point, not a verdict.
There is also a practical risk of confusion. You may see one score in a free app and a different one on your loan estimate. That gap is normal, and it is not a sign of an error. Compare the mortgage score your lender reports, not the number from a consumer app.
Finally, remember that policy can change. The FHFA says the schedule for FICO 10T and the future of Classic FICO are still open. Check the agency's page again before you apply, and ask your lender to confirm which model applies to your loan.
Conclusion
The practical answer is simple. VantageScore 4.0 is now a normal option for conventional mortgages, fees are aligned, and your lender decides which score gets used. Your job stays the same: lower balances, pay on time, and keep your reports clean.
Your next step is a short call with your loan officer. Ask which scoring model they use, whether both applicants will be scored the same way, and where the pricing tiers fall. Those three answers will tell you more than any score app can.
