What Credit Score Do You Actually Need To Buy a House?

By Eli Wright Published July 13, 2026 Updated October 9, 2026 6 min read

Educational information, not financial advice. How we research and review.

A mortgage score requirement depends on the program, the lender and the underwriting method. A number quoted for one application can be wrong for another. Here is how to identify the rule that applies before treating a credit score as an approval or rejection.

The short answer

There is no universal score. Under standard FHA score rules, 500-579 limits financing to 90% loan-to-value, while 580 or above permits maximum financing. VA and USDA Guaranteed do not set a program-wide score minimum. Fannie Mae distinguishes manual underwriting from Desktop Underwriter (DU): DU has no minimum score requirement, but still evaluates credit risk. These are program rules checked October 9, 2026, not promises that a lender will approve a loan. The table below links each rule to its authority.

Why the answer depends on the loan type

Three different decisions get compressed into the word “minimum.” First, the agency or investor sets eligibility rules. Next, an automated underwriting system or a manual underwriter evaluates the application. Finally, the lender applies its own requirements. Meeting a score floor clears only one part of that process.

For example, “conventional loans require 620” is an incomplete description of Fannie Mae’s current rules. Its manual-underwriting baseline is 620 for fixed-rate loans and 640 for adjustable-rate mortgages, subject to its eligibility matrix and listed exceptions. DU does not impose the same score floor. Other conventional investors and lenders can have different rules. Ask which investor and underwriting route the lender is using instead of treating one number as the whole conventional market.

Why a higher score still matters even if it isn’t required

Loan pricing. Fannie Mae’s guide separates credit eligibility from price adjustments based on credit score and other loan features. Removing a score floor does not remove the role of credit in pricing. Ask for the scoring model used, since a lender’s score can differ from a consumer dashboard.
More loan options. A higher score typically qualifies a buyer for a wider set of loan programs, giving more room to compare terms rather than being limited to one option.
Lower insurance costs. Depending on the loan type, a higher score can also reduce the cost of mortgage insurance, an additional monthly expense on many low down payment loans.
A comparable quote. Compare loan estimates for the same loan amount, term, rate-lock period and points. A score alone cannot tell you the offered rate or the amount due at closing.

What actually makes up that number

A credit score isn’t a single fixed data point, it’s calculated from several factors, including payment history and how much of a person’s available credit is currently being used. Understanding the difference between a credit score and the credit report it’s built from helps clarify why the same person can see slightly different numbers depending on which scoring model or bureau is checked. Keeping revolving balances low relative to available credit is one of the more direct ways this number tends to move before an application.

Other factors that matter alongside credit score

Lenders also weigh income, existing debt, and down payment amount together with credit score, not credit score in isolation. Someone with a strong score but a high amount of other debt, including education debt still being repaid, may still find their options narrower than the credit score alone would suggest, since lenders look at the overall picture of how much a household can reasonably afford to repay.

Credit-score rules by program and underwriting route

Rules checked October 9, 2026. Ask which program and underwriting route your lender is using.

Program or route	Agency or investor score rule	What a lender still checks
FHA	Below 500: ineligible. 500-579: maximum 90% loan-to-value. 580 or above: eligible for maximum financing under FHA rules	Its own score standard, required funds and all other FHA underwriting conditions
VA-backed loan	VA sets no minimum credit score	Lender credit standard, income, eligibility and property requirements
USDA Guaranteed	No program minimum credit score; ability and willingness to manage debt must be demonstrated	Lender underwriting, eligible income and location, and program requirements
Fannie Mae, manually underwritten	Minimum 620 for fixed-rate loans or 640 for adjustable-rate mortgages under the cited general requirements	Other eligibility requirements and any lender overlays
Fannie Mae, Desktop Underwriter (DU)	No minimum score requirement for DU casefiles under the current guide	DU assessment of overall credit risk and the lender’s requirements

Show your work: sources, method and limits

What this table is. Agency and investor score rules checked October 9, 2026; these are separate from a lender’s approval decision.

How to use it. Identify the program and underwriting route first. Compare the applicable agency rule with the lender’s actual requirement, then ask about income, debt, reserves, property and down-payment requirements.

Sources and scope.

HUD FHA minimum credit scores: FHA minimum decision credit score and maximum financing/LTV tiers.
VA home-loan limits: VA does not require a minimum score; a lender may.
USDA guaranteed-loan program: Program has no minimum score and requires ability and willingness to manage debt.
Fannie Mae credit-score requirements: Different score requirements for manual underwriting and Desktop Underwriter (DU).

Limits. Meeting a score threshold does not guarantee approval. Automated underwriting and lender overlays differ; requirements can change.

Related tool: the mortgage calculator.

Where the rule gets misapplied

Chasing a single “magic number” from someone else’s story. A score that worked for one person’s loan program and lender says little about what a different program or lender requires, since minimums vary by both.
Assuming a lower score means an application will be rejected outright. A lower score usually narrows the field of loan programs and raises the cost of borrowing rather than closing off buying a home entirely, especially with government-backed programs built for wider access.
Treating eligibility as a price quote. Compare actual loan estimates, including points, fees and mortgage insurance. The mortgage calculator can compare payments for quoted rates; it cannot infer a rate from a credit score.
Overlooking other factors that shape approval. A strong score paired with a high debt load or a thin down payment can still narrow the options, since lenders weigh the full financial picture rather than credit score in isolation.
Not checking current requirements directly. Relying on secondhand numbers from a forum or an outdated article instead of checking current requirements with actual loan programs can lead to over- or under-estimating what’s realistic.

Questions to put to the lender

Ask: “Which program and investor rules apply, and is this automated or manual underwriting? Is the score you require an agency rule or your own lending requirement? Which score model are you using? What else in my application remains to be assessed?” Keep the answers with the loan estimate. If a lender cannot offer a loan, those details help distinguish a lender-specific restriction from a program rule without assuming another lender will approve it.