For years, a 620 credit score was widely treated as the minimum credit score for conventional mortgage financing. That rule of thumb changed when Fannie Mae updated its Desktop Underwriter (DU) credit risk assessment in November 2025.
Beginning with new DU loan casefiles created on or after November 16, 2025, Fannie Mae removed its minimum 620 credit score requirement for loans evaluated through DU. Instead of using a universal third-party credit score cutoff to determine whether a borrower can receive a DU risk assessment, DU evaluates a broader range of credit and non-credit risk factors.
That does not mean every borrower with a credit score below 620 will qualify for a conventional mortgage.
Lenders can still have their own requirements, and conventional mortgage eligibility depends on much more than a credit score. Income, debt, reserves, credit history, loan characteristics, property characteristics and the overall risk profile can all affect the underwriting decision.
For borrowers in Ohio, Florida, Virginia, South Carolina and Pennsylvania, the important question is no longer simply, “Is my credit score at least 620?”
The better question is: “Does my complete financial profile meet the requirements for a conventional mortgage?”
The major change involves Fannie Mae's Desktop Underwriter system.
Before the November 2025 update, DU loan casefiles had a 620 minimum credit score requirement for the credit risk assessment. Fannie Mae removed that minimum requirement for new DU casefiles created on or after November 16, 2025.
Fannie Mae says DU does not use third-party credit scores as an integral part of its credit risk assessment. Instead, DU analyzes information from the borrower's credit report and loan application and applies its own proprietary risk assessment.
This is an important distinction.
The change does not mean credit scores are irrelevant. Lenders still obtain credit reports and credit scores, and credit scores can continue to affect pricing and other aspects of the mortgage transaction. Fannie Mae's current Selling Guide states that a minimum credit score is not required for DU loan casefiles, while manually underwritten loans remain subject to applicable minimum score requirements.
In other words, the old “620 or nothing” assumption is no longer an accurate description of every Fannie Mae conventional loan evaluated through DU.
Not necessarily.
For a conventional mortgage evaluated through Fannie Mae Desktop Underwriter, Fannie Mae no longer requires a minimum credit score for the DU risk assessment.
However, there is an important difference between:
Fannie Mae's current guidance specifically shows that DU loan casefiles do not have a minimum credit score requirement, while manually underwritten loans generally have applicable minimum scores.
Therefore, saying “there is no minimum credit score for conventional loans” would be too broad.
A more accurate statement is:
Fannie Mae no longer requires a minimum third-party credit score for loans evaluated through Desktop Underwriter, but borrowers must still satisfy the overall underwriting requirements, and lenders may impose additional restrictions.
Desktop Underwriter looks at the broader risk profile instead of treating one credit-score number as the sole gatekeeper.
Fannie Mae explains that DU evaluates credit history together with other factors such as the borrower's financial resources, debt levels, reserves, property characteristics and loan purpose.
Some of the factors that can influence the overall risk assessment include:
A borrower's history of managing existing credit obligations remains important.
Recent late payments, delinquencies or other negative credit events can increase risk. On the other hand, a history of consistently making payments on time can provide positive evidence about how the borrower manages debt.
A credit score alone may not tell the entire story of a borrower's financial behavior.
The amount and type of debt a borrower has can affect the overall mortgage risk profile.
A borrower with a lower credit score but manageable debt obligations may have a different risk profile from a borrower with a similar score and significantly higher debt.
Debt-to-income considerations and the borrower's overall liabilities remain important parts of mortgage underwriting.
How much of available revolving credit a borrower is using can provide additional information about credit management.
High balances relative to available credit may be viewed differently from lower revolving balances, depending on the complete credit profile and other risk factors.
Cash reserves and available assets can also matter.
Fannie Mae identifies liquid reserves as one of the factors considered in comprehensive mortgage risk assessment.
A borrower who has meaningful assets available after closing may present a different risk profile than someone with very limited financial reserves.
The age and characteristics of a borrower's credit accounts can also contribute to the overall assessment.
Mortgage underwriting is not simply a matter of looking at one number on a credit report. DU examines information from the credit report and other information in the loan application to determine an overall risk assessment.
Potentially, yes.
The removal of the DU minimum means a borrower with a conventional mortgage credit score below 620 is no longer automatically excluded from receiving a DU risk assessment solely because the score is below 620.
However, “below 620” does not mean “automatically approved.”
A borrower with a lower score still needs a mortgage profile that satisfies the applicable underwriting requirements. DU may consider the combined effect of credit history, debt, assets, income and other characteristics when determining the risk assessment.
The practical result is that some borrowers who previously assumed they could not pursue conventional financing may now have an opportunity to have their complete profile evaluated.
That is very different from guaranteeing approval.
Even when a borrower can receive a DU assessment without meeting the former 620 threshold, a lower credit score can still matter.
Credit scores can continue to influence mortgage pricing.
Fannie Mae's guidance explains that the representative credit score is used for pricing purposes, including loan-level price adjustments.
Therefore, removing the DU minimum does not mean a borrower with a lower credit score will receive the same pricing as a borrower with excellent credit.
Mortgage insurance requirements and pricing can also be affected by the loan's characteristics and risk profile.
Borrowers should not assume that eliminating the DU minimum score automatically eliminates mortgage insurance requirements or makes mortgage insurance equally priced for every borrower.
The complete loan scenario still matters.
Loan amount, loan-to-value ratio, occupancy, property type, debt-to-income ratio, reserves and other characteristics can affect eligibility.
Individual lenders may impose requirements that are stricter than the baseline Fannie Mae requirements.
For example, a lender may decide not to offer a particular conventional scenario below a certain credit score even though Fannie Mae DU itself does not impose the former 620 minimum.
This is one reason comparing lenders can be particularly important for borrowers with credit challenges.
A traditional bank may have a relatively narrow set of lending policies.
If that lender has a minimum credit-score overlay, a borrower may be told that conventional financing is unavailable.
That does not necessarily mean every conventional lender will reach the same conclusion.
A mortgage lender with access to multiple loan programs or lending sources may be able to evaluate the borrower against different underwriting requirements.
For borrowers in Ohio, Florida, Virginia, South Carolina and Pennsylvania, this can be especially useful when a credit profile does not fit the requirements of a single traditional lender.
The goal should not be to find a lender willing to ignore underwriting requirements.
The goal is to find a lender that can accurately evaluate the complete borrower profile and identify the programs for which the borrower may reasonably qualify.
If your credit score is below 620, don't automatically assume that conventional financing is impossible.
A lender can review your credit history, income, debts, assets and property scenario to determine whether a conventional mortgage may be worth pursuing.
Advantage Lending can help borrowers understand their available mortgage options and determine what information is needed for a more complete evaluation.
Borrowers with credit challenges often compare conventional financing with FHA financing.
Neither option is automatically better for every borrower.
FHA financing can be useful in certain situations, but conventional financing may be preferable when the borrower qualifies and the property or financial circumstances make a conventional loan a better fit.
For example, property condition can be an important consideration.
Some properties may present condition or appraisal issues that make FHA financing more complicated. A conventional loan may be worth considering when the property does not fit comfortably within FHA requirements.
The comparison should also consider:
The right choice depends on the individual borrower and property rather than simply choosing the loan with the lowest advertised credit-score threshold.
No.
A lower score can make mortgage qualification more challenging, but it is not necessarily an automatic disqualifier for a Fannie Mae loan evaluated through DU.
Fannie Mae's current Selling Guide states that DU loan casefiles do not have a minimum credit score requirement. At the same time, lenders remain responsible for obtaining the required credit information and ensuring that loans meet applicable eligibility and delivery requirements.
This means borrowers should avoid two opposite assumptions:
Old assumption: “My score is below 620, so conventional financing is impossible.”
New but equally risky assumption: “There is no 620 minimum, so I will automatically qualify.”
Neither statement accurately describes the current underwriting environment.
The more useful approach is to have the complete mortgage scenario evaluated.
If you are considering a home purchase or refinance and your score is below 620, take these steps before deciding which mortgage program to pursue.
Check your credit reports for inaccurate accounts, reporting errors, outdated information or payment issues that may need attention.
Know your monthly debt obligations before applying.
Your lender will evaluate your liabilities as part of the overall qualification process.
New credit applications and additional debt can affect your financial profile.
If you are preparing for a mortgage, discuss major financial changes with your loan professional before making them.
Gather pay stubs, tax documents, bank statements and other required documentation early.
A clean and well-documented application can make the underwriting process easier.
Do not automatically choose FHA or conventional financing based solely on a credit-score rule of thumb.
Ask whether your complete profile can be evaluated through conventional automated underwriting.
If one lender says your credit profile does not qualify, ask whether another lender may have a different overlay or underwriting approach.
This is particularly important for borrowers with credit challenges.
The conventional mortgage credit score conversation has changed.
The former 620 DU threshold is no longer a universal Fannie Mae requirement for DU loan casefiles. Fannie Mae replaced that minimum-score requirement with a broader credit-risk assessment beginning with applicable DU casefiles created in November 2025.
But the change should not be interpreted as a free pass for borrowers with low credit scores.
Your payment history, debt, credit profile, reserves, income, property and other characteristics still matter. Lender-specific restrictions can also affect whether a particular loan is available.
For borrowers with a credit score below 620, the biggest takeaway is simple:
Don't make a mortgage decision based on the 620 rule alone. Have your complete financial profile evaluated.
If you are buying or refinancing a home in Ohio, Florida, Virginia, South Carolina or Pennsylvania, working with a lender that can evaluate multiple mortgage options may help you identify a financing strategy that fits your circumstances.
Advantage Lending can help borrowers explore mortgage options based on their individual financial circumstances rather than relying on a single credit-score cutoff.
For borrowers dealing with credit challenges, the initial conversation can help clarify what documentation is needed, what loan options may be worth exploring and whether conventional financing should be part of the comparison.
The objective is not to promise approval.
It is to help you understand your available options before you make a major home-financing decision.
For Fannie Mae loans evaluated through Desktop Underwriter, Fannie Mae no longer requires a minimum third-party credit score for the DU risk assessment. However, other eligibility requirements apply, and lenders may impose their own requirements. Manually underwritten loans have different minimum-score requirements.
Potentially. Fannie Mae removed the previous 620 minimum credit-score requirement from DU loan casefiles. A borrower below 620 may therefore receive a DU risk assessment, but approval is not guaranteed. The overall credit and financial profile, loan characteristics and lender requirements still matter.
No. DU's risk assessment does not use a minimum third-party credit score as its eligibility gatekeeper, but lenders still obtain credit scores, and credit scores can affect pricing and other aspects of the mortgage transaction.
DU evaluates information from the borrower's credit report and loan application. Factors can include credit history, debt levels, liquid reserves, income, property characteristics, loan purpose and other risk factors. Fannie Mae emphasizes that no single factor determines a borrower's ability or willingness to make mortgage payments.
Not necessarily. FHA and conventional financing have different eligibility requirements, costs and property considerations. A borrower with credit challenges should compare the complete loan scenarios rather than choosing solely because one program is perceived to have a lower credit-score requirement.
If you have been told that a 620 credit score automatically prevents you from getting a conventional mortgage, the current Fannie Mae DU rules are worth understanding.
Your credit score is important, but it is only one part of a broader mortgage risk assessment.
Get your complete financial profile reviewed, compare available loan options and ask whether conventional financing through automated underwriting may be appropriate for your situation.
Contact Advantage Lending to discuss your mortgage options.
This article is provided for general educational and informational purposes only and is not an offer to lend, a commitment to approve a mortgage, or financial, legal or tax advice. Mortgage eligibility, interest rates, mortgage insurance, underwriting requirements and loan terms vary based on the borrower, lender, loan program, property and other factors. Fannie Mae and lender guidelines may change over time. A borrower who does not meet a particular credit-score threshold is not guaranteed approval under another underwriting method or lender. Speak with a qualified mortgage professional for an evaluation of your individual circumstances and current loan options.
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