Looser mortgage underwriting guidelines can create more flexibility for some borrowers, but they do not replace the core approval factors lenders still review. Whether you’re buying in Washington State or elsewhere nationwide, mortgage approval generally comes down to your credit profile, debt levels, income, down payment, available assets, and the type of loan you use.
For conventional home loans, broader market signs of easing can mean more room within certain guidelines. But your actual approval still depends on how a lender evaluates your full application.
According to the Mortgage Bankers Association, the Mortgage Credit Availability Index (MCAI) increased by 0.1% to 108.0 in May 2026. An increase in the MCAI means that lending standards are loosening, while a decrease means credit is tightening.
This information is focused on conventional conforming loans, in particular. Here’s what those two terms mean:
Conventional: This is a mortgage loan that’s originated (and sometimes insured) within the private sector, without government backing. This distinguishes it from FHA, VA, and other government-backed mortgage programs.
Conforming: This is a home loan that meets or “conforms” to the underwriting guidelines and parameters used by Fannie Mae and Freddie Mac. A conforming loan can be sold to Fannie and Freddie via the secondary mortgage market.
Conventional conforming loans account for the majority of overall loan volume in Washington State and nationwide. They’ve also become easier to obtain over the last few years, due to the continued easing of mortgage underwriting guidelines and requirements. More recently, mortgage credit availability has shifted only modestly, while maintaining creditworthiness among borrowers and reducing risk remains a main focus.
Here are some key points in regards to the mortgage underwriting standards:
Even when market-wide underwriting guidelines loosen, lenders still evaluate the same core parts of a mortgage application.
Your credit profile remains important because it helps determine how much flexibility a lender may allow elsewhere in the file. Debt-to-income ratio is still a central measure as well, especially for conventional loans where higher DTI levels may be allowed in some cases but are not automatically approved.
Your down payment and loan-to-value ratio also matter because they affect risk, pricing, and program eligibility. Income stability is another major part of the review, since lenders want to see that the borrower can reasonably support the proposed housing payment. Assets and cash reserves can strengthen an application too, particularly when another factor is closer to the edge of the guidelines.
Finally, the property type and how you plan to occupy it can affect underwriting. In other words, looser guidelines may expand flexibility, but they do not eliminate the lender’s full review of borrower qualifications and loan details.
Along with data showing a potential loosening of underwriting standards, debt levels are still high among many borrowers.
While lenders often prefer lower debt-to-income ratios, the number can be as high as 50% in some cases. This will depend on the creditworthiness of the buyer and the specific lender’s guidelines and practices. So a higher DTI does not automatically prevent approval, but it usually requires the rest of the file to support the loan request.
Recent industry reporting has shown that lenders eased standards for jumbo loans, especially within MBA credit-availability commentary.
Fannie Mae has also lifted the DTI eligibility overlay for loans with DTI ratios between 45% and 50%.
Loan-to-value ratio is another major part of the underwriting discussion for conventional conforming mortgages. Fannie Mae’s 97% LTV programs helped expand low-down-payment conventional options, which is one reason some borrowers have had more flexibility than in earlier years. The broader point is that conventional financing does not always require a large down payment, as long as the loan meets the applicable eligibility standards.
For borrowers, this means a lower down payment can still work within conventional underwriting, but it does not remove the need for qualification in other areas such as credit, income, reserves, and overall loan fit. Fannie Mae’s Eligibility Matrix provides the detailed LTV, CLTV, and HCLTV requirements used for eligible conventional first mortgage loans.
Government-backed programs such as FHA and VA may also allow high-LTV borrowing, but those are a separate comparison rather than the main focus here. For this article, the key takeaway is that low-down-payment conventional options can expand access while still operating within a full underwriting review.
Despite all this data – which some might say is somewhat conflicting – it’s up to the individual borrower and lender in terms of whether or not a mortgage application will be accepted, and what terms will be provided if the mortgage is approved.
Sammamish Mortgage can help. We serve clients across Washington, Idaho, Colorado, Oregon, and California. Since 1992, we’ve been providing several mortgage programs and products with flexible qualification criteria to borrowers across the Pacific Northwest. Visit our website to get an instant rate quote or to use our online mortgage calculator. Or, reach out to us if you are ready to get pre-approved for a mortgage.
Not automatically. Looser underwriting can create more flexibility for some borrowers, but lenders still review credit profile, debt-to-income ratio, income, down payment, assets, property type, occupancy, and loan type before approving a mortgage.
Mortgage underwriting usually focuses on a borrower’s credit profile, debt levels, income stability, down payment, available assets or reserves, and the type of loan being used. Lenders also review the property type and how the home will be occupied.
A common way to describe mortgage underwriting is through factors such as credit, capacity, capital, collateral, and character. In practice, that means lenders look closely at credit history, ability to repay, available funds, the property securing the loan, and the overall strength of the application.
It depends on the lender and the overall loan file. Conventional loans often favor lower debt-to-income ratios, but in some cases the ratio can be as high as 50% when the borrower’s creditworthiness and other qualifying factors support the loan request.
No. A higher debt-to-income ratio does not automatically prevent approval, but it usually means the rest of the application needs to be stronger. Lenders may look for compensating factors such as better credit, stable income, cash reserves, or other signs of lower risk.
Yes, some conventional conforming loans allow very low down payments. Fannie Mae’s 97% loan-to-value programs helped expand low-down-payment conventional options, so a borrower may be able to qualify with about 3% down if the loan meets the applicable eligibility standards.
Conventional means the mortgage is made in the private sector rather than backed by a government program like FHA or VA. Conforming means the loan meets the underwriting rules and limits used by Fannie Mae and Freddie Mac, which allows it to be sold on the secondary mortgage market.
Yes. Borrowers in Washington and nationwide may see broad market signs of easing, but approval still depends on how an individual lender evaluates the full application. Lenders can differ in how they apply guidelines, review risk, and set overlays or internal standards.
The 3-7-3 rule is a mortgage disclosure timing rule, not an underwriting standard. It relates to when certain disclosures are provided and when a loan can close, while underwriting focuses on approval factors such as credit, debt, income, assets, down payment, and loan type.
Age by itself does not determine mortgage approval. Lenders generally focus on qualifying factors such as income, credit profile, debt obligations, assets, and the borrower’s ability to repay under the loan program guidelines.
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