VantageScore 4.0 Now Sits Next to FICO at Fannie Mae. What Homebuyers Should Do With Their Credit Score
Since October 1, lenders can price Fannie Mae loans on VantageScore 4.0 as easily as on Classic FICO. You cannot pick the model, but you can prepare for either one.
In this guide 9 sections
As of October 1, 2026, Fannie Mae lets lenders price loans using VantageScore 4.0 in the same loan-level pricing matrix as Classic FICO. Borrowers cannot choose the model; the lender does. Homebuyers should review all three credit reports, fix errors, keep card balances low, and ask their lender which score it will use.
Coinpurse covers budgeting and saving habits alongside the credit rules that shape them, and a home purchase combines all of it. This explainer is for people saving for a down payment, or planning to apply for a mortgage in the next year. It explains the change, what it does and does not mean, and a practical preparation plan.
What Exactly Changed at Fannie Mae?
Fannie Mae removed the paperwork barrier and then the pricing barrier. According to a summary at The Money Overview, Lender Letter LL-2026-06 opened VantageScore 4.0 to all approved lenders on September 9, 2026. Lenders no longer need written permission to use it. A September 30 update added pricing.
As of October 1, VantageScore 4.0 pricing sits in the same loan-level price adjustment matrix as Classic FICO, and the separate VantageScore grids were removed. The letter applies to whole loans purchased on or after October 1 and to mortgage-backed securities issued on or after that date. It lists no dollar amounts.
Some limits remain. Only loans run through Fannie Mae's Desktop Underwriter qualify. Manually underwritten loans must use Classic FICO alone. Lenders must request VantageScore 4.0 from Equifax, Experian, and TransUnion, and the same model must be used for every borrower on a loan.
Who Decides Which Score Is Used?
The lender decides. A borrower cannot ask for the more favorable model, and a lender that is not ready for VantageScore 4.0 can stay on Classic FICO. Some lenders are adopting it faster than others, so two lenders may look at different numbers for the same person.
Reports from the mortgage industry say large lenders are moving at different speeds. One says Rocket Mortgage plans to make VantageScore 4.0 its default for eligible loans starting in the fourth quarter of 2026, while UWM pulls both scores and uses the stronger one. These details come from trade coverage, so confirm with your own lender.
FHA works on its own calendar. HUD's Mortgagee Letter 2026-11, dated October 8, says FHA will accept VantageScore 4.0 and FICO 10T for case numbers assigned on or after January 1, 2027. If you plan an FHA loan, the timeline differs from a conventional one.
How Do the Two Scores Differ?
Both score the same credit reports on a scale up to 850, but they weigh and treat some data differently. The point for homebuyers is simple: neither is fixed, so the surest strategy is to improve the habits both reward, such as paying on time and keeping balances low.
Scores can differ between models even for the same person on the same day. Fannie Mae's letter does not say whether borrowers' scores will rise or fall, and news coverage does not either. Treat claims that the new model will help everyone with caution. Your own result is what counts.
Because lenders using VantageScore 4.0 pull from all three bureaus, an error at one bureau can matter more than before. If you have been checking only one report, that habit no longer protects you. Our explainer on how credit scores work and the five factors behind them lists the pieces both models share.
What Should You Do Before You Apply for a Mortgage?
Start about six months out, since fixes take time. This list gives the order that matters most.
- Pull your reports from Equifax, Experian, and TransUnion.
- Dispute any errors or accounts you do not recognize.
- Lower credit card balances before statement dates.
- Avoid opening new accounts until after closing.
- Ask your lender which score model it will use.
- Keep paying every bill on time.
You can get free reports online. The Consumer Financial Protection Bureau explains that you can view a free report from each of the three bureaus at AnnualCreditReport.com, as often as once a week, in its guide to free credit reports. It also warns about sites advertised as free that sell other products.
If you find a mistake, act quickly. Our walkthrough of how to dispute credit report errors and win the second round shows how to document the problem and follow up.
Why Do Card Balances Matter So Much Right Now?
Revolving balances are one of the fastest ways to move a score. Lenders look at how much of your available limit you use, and high usage can pull scores down under either model. Paying balances down before the statement closes can lower your reported utilization within a month or two.
Our guide to credit utilization and why it is the fastest lever on your score shows the math. A common target is under 30 percent of your limit, and lower is better. For example, a $5,000 limit with a $2,500 balance shows 50 percent use. Paying it down to $1,000 brings it to 20 percent.
Keep other accounts steady. Do not close old cards before applying, since that can shrink your total available credit and shorten your history. Do not co-sign or open a store card for a discount while you are in the pre-approval window.
How Does This Fit Into Your Down Payment Plan?
Credit and savings work together. A better score can mean a lower rate or lower pricing adjustments, and a larger down payment can lower costs too. Our guide to saving a house down payment in 2026 shows how to build the fund without insisting on 20 percent.
Separate the two goals in your budget. Put down payment savings in a dedicated high-yield account, and pay card balances from your regular budget. Avoid pulling from the down payment fund to pay off cards right before you apply, since lenders look at your reserves and the source of your funds.
Set a timeline. If you plan to apply in twelve months, schedule a credit report review every quarter, a balance check every month, and a lender conversation at the six-month mark. Coinpurse's editors suggest a short checklist taped to your fridge, so the steps stay visible.
What Mistakes Do Homebuyers Make With Credit Before Closing?
The most common mistake is opening new credit during the process. A new card or car loan adds a hard inquiry, lowers your average account age, and changes your debt-to-income ratio. Lenders often re-check credit shortly before closing, so a surprise account can delay or derail an approval.
The second is paying off a card with the money meant for closing costs. Reserves matter to underwriters, and a drained account can cause trouble even if your score improves. Plan debt payoff and savings as separate lines in your budget.
The third is ignoring small collections or old disputes. A forgotten medical bill or utility balance can show up in a report and cause questions. Check your reports early enough to resolve or document items, and keep copies of every letter and payment confirmation.
A final mistake is shopping lenders over too long a period. Multiple mortgage inquiries within a short window are generally treated as one for scoring purposes, but a long gap between applications may count separately. Ask each lender how it handles inquiries and compare offers within a couple of weeks.
What If You Are Not Buying Soon?
The same habits still pay off. Paying on time, keeping balances low, and checking all three reports twice a year protect your options for any loan, whether it is a car, a refinance, or a rental application. The change at Fannie Mae simply shows that the scoring landscape keeps shifting.
It also helps to know that lenders in other markets may use different scores. Auto lenders, card issuers, and landlords often use their own versions. Do not assume the number you see in a free app matches what a mortgage lender will see. Think of it as a rough guide, not a promise.
Keep a simple log of every step, with dates and screenshots of your reports. If a lender or bureau questions an item later, a clear record speeds up the fix. It also helps you compare your progress month over month.
Conclusion: Prepare for Either Score
The practical answer is that you cannot choose the model, so prepare for both. Review all three credit reports, fix errors, keep balances low, avoid new debt, and ask your lender which score it uses. The Fannie Mae change opens options for lenders, not guarantees for borrowers.
Your next step this week is to pull your three reports and write down any errors. Starting early gives you time to fix problems before they affect your price, and it keeps your savings plan on schedule.
