The middle score rule: which of your three scores a mortgage uses

A lot of people walk into a mortgage application having averaged their three scores in their head. Scores of 702, 668 and 641 average out to 670, which feels like a comfortable “good” score. The lender sees 668. Nobody averages a single borrower’s scores, and with two borrowers the arithmetic usually gets less forgiving, not more.

The rule itself is short. The details that cost people money are in what it means for crossing a cutoff, and how each loan program combines two borrowers.

How one borrower’s score gets picked

A mortgage credit pull returns up to three scores, one from each bureau’s file. Fannie Mae, Freddie Mac, FHA and USDA all pick from them the same way:

Freddie Mac’s fact sheet spells out the duplicate case (“the Underwriting Score is the duplicate score”), and USDA’s handbook says “a repeating score may be used.” Fannie Mae’s guide gives the middle-of-three and lower-of-two rules directly.

Your three scores rarely match because each bureau’s file is a little different and the classic mortgage FICO versions differ by bureau. Our page on why your three scores don’t match covers where the gaps come from.

Two of your three scores have to clear the line

Most people miss what this means for planning. Your middle score is at or above a cutoff only when at least two of your three scores are at or above it. A single high score doesn’t help if the other two are under the line, and one very low score does no harm at the cutoff as long as the other two clear it.

Example: your scores are 655, 612 and 598. Your middle score is 612, eight points short of a lender’s 620 overlay. You have two routes:

• Raise the 612 to 620 or higher. Now you have 655 and 620-plus above the line.
• Raise the 598 past 620. If it climbs to 625, your scores are 655, 625 and 612, and the middle is 625.

Moving the 655 does nothing for the middle. So look at which accounts appear on which bureau’s report. A card balance or late payment that only shows on one file affects only that bureau’s score, and it matters only if that score is one of the two you need above the line.

When there’s more than one borrower

Every program starts with each borrower’s own score, picked as above. They differ in how they combine borrowers:

Freddie Mac’s current Guide couldn’t be opened for this article, so the Freddie row relies on its May 2022 fact sheet. For VA, ask the lender how it combines scores, since the rule is theirs.

Fannie Mae’s two numbers, side by side

Fannie Mae is the one program that can produce two different scores from the same file, and it uses each for a different job. Its own Selling Guide example shows both:

• Representative score for the loan: the lowest median, 605. Fannie says this score is used for pricing on all loans.
• Average median score: (605 + 693) / 2 = 649. Fannie uses this only to test the minimum score on certain manually underwritten loans.

You may still read that Desktop Underwriter checks the average median score. That was true when DU enforced a 620 minimum. Fannie’s DU release notes removed that minimum for casefiles created on or after November 16, 2025, and replaced the DU message that showed both scores with one that shows only the representative score. For the loans most people get today, the number that sets your price is the lowest middle score. How your score changes your mortgage cost shows what each pricing band is worth in dollars.

FHA’s extra step starting in 2027

HUD’s Mortgagee Letter 2026-11 lets lenders submit FICO 10T and VantageScore 4.0 alongside Classic FICO for FHA case numbers assigned on or after January 1, 2027. The middle score rule then runs once per model.

Example: a lender submits two models for one borrower.

The borrower-level score is the lower of the two picks, 598. If a co-borrower’s borrower-level score is 641, the loan’s decision score is still 598. HUD also requires the same model types for every borrower on the loan, and the 500 and 580 cutoffs stay where they are. The FHA credit score guide covers what those cutoffs mean for your down payment.

Should the lower-score borrower come off the loan?

Since the weaker middle score sets the loan’s score in most programs, couples sometimes ask whether to leave one person off. Sometimes that helps. Whether it does usually comes down to income.

Example: Alex’s middle score is 752 and Jamie’s is 671. Together they’re priced as a 671 loan. With Alex alone, the loan is priced at 752, which in Fannie Mae’s grid is a cheaper band. But if the payment is $2,000 a month and the lender’s limit is a 45% debt-to-income ratio, Alex alone needs about $4,445 a month in qualifying income with no other debts ($2,000 / 0.45 = $4,444.44). If Alex earns $4,000, dropping Jamie trades a better price for a denial.

Ask the lender to run it both ways. Any spouse or partner left off the loan may still have rights or obligations under state law and program rules, so that’s a question for the loan officer too. Cosigning and co-borrowing covers the wider trade-offs.

What to do with this before you apply

1. Get all three scores for each borrower from a mortgage pull, since app scores usually use a different model.
2. Write down each borrower’s middle score and circle the lowest. That’s the number most programs will use.
3. For any cutoff you’re near, count how many of your three scores clear it. You need two.
4. Check which bureau’s file holds the accounts dragging down your two lowest scores, and work on those first.
5. Run your own scores through the middle score calculator to see the loan’s score under each program’s rule.