What Credit Score Do I Actually Need to Buy a House?

The honest answer: it depends on the program. FHA goes down to a 580 FICO at 3.5% down, or 500–579 with 10% down. Conventional generally starts at 620 but pricing gets much better at 660, 700, and 740. VA has no program-set minimum at all — but most lenders overlay 580–620. USDA typically wants 640. The catch is that the program floor and the lender floor are rarely the same number; retail lenders almost always add their own overlay on top of the handbook minimum, and that's where most rejections come from.

The handbook view (what the rules actually say)

Each loan program publishes its own minimum credit-score rule. These are the program floors — what the agencies themselves require:

• FHA: 580 minimum FICO for the 3.5%-down option. 500–579 is eligible but requires 10% down. (Source: HUD Handbook 4000.1, II.A.1 — Borrower Eligibility and Credit Requirements.)
• Conventional (Fannie Mae / Freddie Mac): 620 minimum representative credit score for most standard conventional loans. Loan-level price adjustments (LLPAs) tighten sharply below 660 and again below 700 — meaning eligible but expensive. (Source: Fannie Mae Selling Guide B3-5.1-01, General Requirements for Credit Scores; Freddie Mac Single-Family Seller/Servicer Guide Section 5202.1.)
• VA: No program-set minimum credit score. The VA delegates credit underwriting to the lender, with the requirement that the borrower be a "satisfactory credit risk." (Source: VA Lender's Handbook M26-7, Chapter 4 — Credit Underwriting; 38 CFR Part 36.)
• USDA Rural Development: Typically 640 for streamlined automated underwriting (GUS). Manual underwriting is permitted below 640 with documented compensating factors. (Source: USDA Handbook HB-1-3555, Chapter 10 — Credit Analysis.)
• How the score is pulled: Mortgage lenders use a tri-merge credit report from Equifax, Experian, and TransUnion, then take the middle of the three scores. For joint borrowers, the lower of the two middle scores typically governs. (Source: Fannie Mae Selling Guide B3-5.1-02; Freddie Section 5202.1.)

The plain-English translation

Strip out the handbook language and the practical version looks like this:

• There is no single "credit score to buy a house." There are program minimums, and there are lender minimums on top. The lender minimum is almost always higher than the program minimum.
• The score that matters is the middle of your three FICO scores from the mortgage-version pull — not the FICO 8 you see on Credit Karma, not your VantageScore, and not the score on your credit-card app. Mortgage scores routinely differ from consumer-app scores by 20–60 points in either direction.
• "Eligible" and "affordable" aren't the same. A 620 FICO qualifies for Conventional, but the pricing hit can be steep enough that FHA at 580 ends up with a lower monthly payment. The right question is which program prices best at your score, not which one you qualify for.
• Below 580, your options narrow to FHA at 10% down, manual-underwriting VA with strong compensating factors, or non-QM bank-statement / asset-utilization programs. They exist, but they're not most retail lenders' wheelhouse.

Side-by-side: program floor vs typical lender overlay

The table is a guideline, not a quote. Overlay policy varies by investor and changes with market conditions; pricing at each score band varies daily. The right move is to actually price the scenarios at your real middle FICO — not the consumer-app score — and compare.

Lender overlays — where the rules get tighter

The handbook floors above are the program ceiling on flexibility. Most retail lenders impose "overlays" — tighter rules on top of the agency rule. Two lenders can both offer FHA loans yet refuse the same 580-FICO borrower for entirely different reasons:

• FICO floor overlays: The most common overlay. HUD allows 580; the retail lender requires 620 or 640. The deal is eligible to the agency but ineligible at that lender. Brokers shop multiple wholesale investors; if one says no, another often says yes.
• Trade-line / credit-depth overlays: Some lenders require a minimum number of open trade lines (typically 3) or a minimum credit history length (typically 12–24 months). Borrowers with thin files can be eligible to FHA via manual underwriting but rejected at the lender level.
• Collections / charge-off overlays: FHA permits open collections under certain thresholds without requiring payoff (per HUD Handbook 4000.1 II.A.4.b.iv). Many retail lenders require payoff regardless. Same loan, same borrower — different answer depending on whose desk it lands on.
• DTI cap overlays interact with credit-score overlays: A 620 FICO with 45% DTI may be eligible to Fannie's automated system (DU) but rejected by a lender that caps at 43% for sub-660 scores. The score-DTI overlay matrix is where most denials happen, and it isn't published.
• Manual underwriting policy: When the automated system (DU for conventional, TOTAL Scorecard for FHA, GUS for USDA) returns a "refer," only some lenders will manually underwrite. Independent brokers usually have at least a couple of wholesale investors that will.

Which lenders we actually use for this scenario

The broker channel exists because score buckets behave differently on different sheets. I don't send a 760 borrower to the same lender as a 585 borrower — they're literally not the same pricing universe.

For the high-credit end (740+), I'm going to the wholesale investors with the cleanest agency pricing — the ones who don't pad their margin and just want clean files in volume. That's where the rate-sheet competition is sharpest, and a quarter-point difference between the top two or three lenders on a Tuesday morning is normal. I shop the sheet. The borrower gets the winner.

In the 660-739 middle band, I'm watching LLPAs (Loan-Level Price Adjustments — the score-and-LTV-based pricing penalties Fannie and Freddie charge). The lender choice matters less than the program choice here: at 680 with 5% down on Conventional, the LLPA stack can be ugly enough that FHA actually wins on monthly payment even with mortgage insurance. I'll run both and price both. Some wholesale lenders have buy-up/buy-down lender credits that smooth out tier crossings; others don't.

Below 620 is where the broker channel really earns its keep. Sub-580 FHA is legal per HUD — 10% down, manual underwriting, TOTAL Scorecard refer — but the number of wholesale investors who actually fund it is small. I keep a short list of lenders who'll touch it. Same with VA at 540-579: most won't, a few will with strong compensating factors (residual income, two years on the job, low DTI). A retail LO at a megabank doesn't have these lenders in their stack. I do.

Real-world cases

I've seen this pattern a lot: borrower walks in saying “my Credit Karma says 690” and the tri-merge mortgage pull (FICO 2/4/5 — the older bureau-specific models lenders use, not the FICO 8 or Vantage 3.0 you see consumer-side) comes back 642. A typical 40-50 point swing. Borrower's planning a Conventional purchase at the 720 pricing tier and is suddenly looking at LLPA pricing two tiers worse. Not a denial — just a much more expensive loan than they planned for. The lesson is simple: the score that matters is the middle of the three bureau scores on the mortgage tri-merge, not the score on the app on your phone.

A typical sub-580 case: borrower at 568, FHA-eligible on paper, has the 10% down and three months reserves. A retail lender tells them they can't help. They come to me, I send it to one of my two specialty wholesale investors who actively underwrite sub-580 manual FHA. Rate is higher than standard FHA, but the file closes. The borrower didn't need a different credit score — they needed a different lender.

Another pattern I've seen: borrower with a 615 score, 3% down, applying at a big retail bank. Bank says “you need 620 — go work on your credit and come back.” That's a 5-point gap. A rapid rescore (paying down a single revolving card to under 10% utilization and forcing a bureau update inside 7-10 days) can clear that gap. Retail LOs often don't run rapid rescores because their channel doesn't pay them to spend the time. A broker will.

How the big retail lenders typically handle this

The retail playbook on credit score is almost always the same: lead with the overlay floor (usually 620 even on programs that legally go lower), don't explain the difference between the consumer credit score and the mortgage tri-merge, and steer the borrower to whichever in-house product has the highest margin for that score band.

I'll see borrowers come to me after a retail call where they were told “you don't qualify” — when what was actually true is “you don't qualify under our overlay.” Rocket and UWM and the big megabank originators all have their own internal credit floors that are usually 20-40 points above the program floor. That's not a rule; that's a business decision. Their cost of acquisition is high enough that they don't want to spend cycles on files that take more touches.

You'll also see retail pricing that doesn't acknowledge tier crossings. A borrower at 678 and a borrower at 702 are in two different LLPA buckets on Conventional — could be a quarter-point to a half-point spread on rate when the LLPAs are factored in. The retail quote often hides that by quoting “our rate today is X%” instead of pricing the specific file. The broker channel makes that visible because we shop multiple lenders' sheets and the tier-crossing math is plain on the page.

The other retail pattern worth naming: the credit-improvement upsell. Borrower gets told to “come back in six months after working on your credit,” and meanwhile the rate market and the home they wanted are gone. Sometimes that advice is right. Often it's the lender protecting their overlay rather than serving the borrower. A second opinion from someone with access to a wider lender pool is worth getting.

A simple decision rule

For a buyer trying to figure out whether their score is "enough," the cleanest 30-second filter:

1. 1740+ middle FICO? You're in the best pricing bucket on every program. The question is program fit, not eligibility.
2. 2680–739? All major programs eligible; price both FHA and Conventional and let the numbers decide.
3. 3620–679? Eligible everywhere but the Conventional LLPAs sting. FHA often wins on monthly payment in this band.
4. 4580–619? FHA is the realistic path. VA if you're eligible. Don't take "no" from the first retail lender as the final answer.
5. 5500–579? FHA at 10% down, or a non-QM program. Tight, but not impossible.