More Borrowers Can Qualify for a Mortgage. That Doesn’t Make the House Affordable

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There are borrowers in America who can responsibly repay a mortgage and still do not fit neatly into the underwriting box we built for them.

Anyone who has spent time in mortgage lending has seen this. A self-employed business owner may have substantial cash flow but a tax return that does not resemble a salaried employee’s W-2. An investor may evaluate a property based on the income it produces. Someone rebuilding after a credit event may have a very different financial situation today than the credit history following them suggests.

Finding responsible ways to lend to those people is good mortgage banking.

It is also becoming a larger part of the market. MBA’s Mortgage Credit Availability Index increased 2.5% in July, and MBA specifically identified non-QM programs as accounting for a substantial share of recent growth in credit availability. WRE has also covered several product launches this year aimed at borrowers who do not fit traditional agency underwriting.

Carrington Mortgage Services provided another example this week when it expanded guidelines for its Flexible Advantage program. Carrington’s Aug. 25 wholesale update eliminated the minimum FICO requirement previously attached to the use of alternative income documentation and established a maximum 65% loan-to-value ratio for borrowers using alternative income documentation with FICO scores between 550 and 619. Its Flexible Advantage materials also describe bank statements, asset conversion and other documentation options for borrowers who do not fit traditional income verification.

I do not see that development as evidence that the mortgage industry is doing something reckless. I see it as evidence that lenders are getting better at looking at borrowers whose finances do not fit one standardized profile.

There is, however, a distinction we need to protect as the credit box expands.

Helping someone qualify for financing and making the home affordable are not the same accomplishment.

Alternative lending serves borrowers the traditional box does not always serve well

The term “non-QM” still creates an immediate reaction in some corners of housing because people hear it and mentally travel back to the years before the financial crisis.

That shorthand is not particularly useful for understanding today’s market.

Qualified Mortgage, or QM, is a regulatory category created under the post-crisis ability-to-repay framework. A mortgage falling outside the QM definition does not, by that fact alone, tell you whether the borrower is financially responsible or whether the loan was underwritten intelligently.

The broader alternative and non-agency mortgage market serves a wide range of borrowers and transaction types. Consumer non-QM programs can include bank-statement, asset-based and other alternative-documentation approaches, while business-purpose investor products such as certain DSCR loans operate under a different regulatory framework. The details matter more than the industry shorthand.

Carrington’s current Flexible Advantage program illustrates why those details matter. Its published materials pair lower credit-score eligibility with other requirements that vary according to credit grade, loan-to-value ratio, debt-to-income ratio and reserves. The Aug. 25 update allowing alternative income documentation for borrowers in the 550-619 FICO range caps those transactions at 65% LTV.

That is an important distinction. Saying “550 FICO” without discussing the rest of the underwriting would give readers a badly distorted picture of the product.

The mortgage industry should be willing to evaluate the entire borrower rather than treating one number as a substitute for underwriting.

I made essentially that argument recently when discussing how tight mortgage standards have become. Responsible risk is part of lending. Eliminating every borrower who does not look perfect on paper is not the same thing as managing risk well.

The growth of alternative underwriting can be part of correcting that problem.

What it cannot do is correct the price of the house.

Affordability is a different problem

This is where I worry that two housing conversations are beginning to run together.

One conversation is about access to mortgage credit. Does a borrower have a legitimate path to financing when conventional documentation or agency guidelines do not adequately reflect the borrower’s ability to repay?

The other is about housing affordability. Can that household reasonably carry the cost of buying and owning the property?

Those questions overlap, but they are not interchangeable.

If a self-employed borrower has enough sustainable income to afford a home but cannot document that income in the manner required by a traditional program, alternative underwriting may solve a genuine credit-access problem.

If the household simply cannot afford the payment associated with the home, changing the documentation method does not solve the underlying economic problem.

That sounds obvious when written down. In practice, housing has spent decades finding increasingly creative ways to bridge the distance between what consumers want to buy and what they can comfortably finance.

Sometimes that creativity is enormously valuable. Thirty-year amortization itself helped make homeownership practical for generations of Americans. Government mortgage insurance, down-payment assistance and secondary-market liquidity have all expanded access in ways that changed this country.

Mortgage innovation is not inherently suspicious.

But every innovation still has to survive the same basic question: are we helping a capable borrower finance a home responsibly, or are we using financing to compensate for a home whose economics do not work for that household?

The answer matters.

The non-QM market is no longer tiny

There is another reason this distinction deserves attention now. Alternative lending has become large enough that we should stop treating it as a niche corner of mortgage banking.

There is no single government field that cleanly identifies every non-QM loan in public mortgage data, which makes market-size estimates dependent on methodology. Polygon Research classifies loan-level HMDA data against the ability-to-repay and QM framework and estimates that non-QM represented 10.22% of U.S. mortgage originations by loan count in 2025 and 9.95% by dollar volume, totaling about $239.3 billion. Those are Polygon’s estimates, not official federal totals, and its methodology matters.

The precise market share is less important to my argument than the direction.

MBA has repeatedly pointed to non-QM as a source of expanding mortgage credit. In its July MCAI release, MBA said non-QM programs continued to account for a substantial share of credit growth.

That is healthy if what we are expanding is responsible access.

We should want lenders competing to serve self-employed households, entrepreneurs and other creditworthy borrowers whose financial lives do not resemble the assumptions built into traditional underwriting.

We should also expect lenders, brokers and policymakers to be honest about what that expansion can and cannot accomplish.

More available credit does not lower the purchase price. It does not reduce property taxes or homeowners insurance. It does not make construction less expensive. It does not increase household income.

Credit determines whether and how the transaction can be financed. Affordability determines whether the household can economically sustain it.

A lower credit score does not automatically mean an irresponsible borrower

I want to spend some time on this because the Carrington announcement could easily produce the wrong headline.

A 550 minimum FICO makes good clickbait. On its own, it tells us very little about the risk of a particular loan.

Credit score is important. It exists for a reason, and lenders would be foolish to pretend past repayment behavior has no predictive value.

It is still one variable.

Carrington’s current guidelines demonstrate that point. The company’s Aug. 25 update says alternative-income-documentation borrowers with FICOs from 550 through 619 are limited to 65% LTV. For certain investment-property transactions, Carrington also specifies reserves, maximum debt-to-income ratios and additional credit requirements.

A borrower with meaningful equity, documented cash flow and adequate reserves presents a different risk profile from a borrower with the same FICO score, almost no equity and no financial cushion.

Good underwriting is supposed to understand those differences.

This is one reason I do not want today’s non-QM discussion reduced to whether lenders are “loosening standards.” That phrase can describe everything from thoughtful expansion of underwriting to genuinely poor risk management, and those are not remotely the same thing.

The more useful question is whether the lender can demonstrate a reasonable ability to repay based on credible information and whether the structure of the loan makes sense for the borrower.

We learned the wrong lesson if every form of flexibility scares us

The financial crisis left mortgage banking with scars it deserved.

There were loans made before 2008 that should never have been originated. Documentation could be weak or nonexistent, incentives throughout the origination chain were badly misaligned, and risks were distributed through a financial system that frequently did not understand them as well as it believed it did.

The answer to that history cannot be that every borrower must fit one narrow financial profile forever.

Federal ability-to-repay requirements changed the legal and underwriting environment after the crisis. Today’s market also has more developed verification technology, more data and a more mature secondary-market infrastructure than the industry had two decades ago.

None of that makes modern mortgage lending immune from bad decisions. It does mean comparisons to the pre-crisis market need more analysis than seeing “non-QM” and assuming we have recreated 2006.

I am far more interested in whether lenders know why an exception makes sense.

A self-employed borrower should not be denied merely because the tax code and conventional mortgage documentation treat income differently. A borrower who experienced a legitimate financial setback should not necessarily be excluded for years after their financial circumstances have recovered.

At the same time, “we found a program that qualifies them” should never become the industry’s definition of success.

The loan still has to make sense after closing.

Mortgage professionals have a responsibility here

This is where the conversation moves from product guidelines to professional judgment.

Loan officers and mortgage brokers understandably want to find a solution. A borrower comes to us because they want to buy a home, refinance one or invest in property, and our business exists in part to find financing that makes those transactions possible.

There is satisfaction in solving a difficult file.

There is also responsibility in knowing when solving the underwriting problem has not solved the borrower’s financial problem.

A borrower may technically qualify for a mortgage and still be walking into a household budget with very little room for property-tax increases, insurance changes, repairs, association dues or the ordinary expenses that come with owning a home. Qualification models cannot anticipate every financial event a family will experience after closing.

That does not mean mortgage professionals should substitute their personal judgment for a borrower’s informed decision. Adults are entitled to decide how they spend their money.

It does mean we should be honest about what the mortgage product accomplished.

We gave the borrower another financing option. We did not make an expensive house inexpensive.

Expand responsible access without pretending it fixes housing

I want to see mortgage underwriting continue to improve.

If better data allows us to understand self-employed income more accurately, use it. If bank statements provide a credible picture of sustainable cash flow for a borrower who does not fit conventional documentation, evaluate them. If strong equity, reserves and other compensating factors justify taking a risk that an automated box would reject, experienced underwriters should be able to consider that.

That is what a mature mortgage market ought to be capable of doing.

At the same time, the housing industry has to resist the temptation to use credit innovation as a substitute for fixing affordability.

America’s affordability problem reaches much further upstream than the loan application. It involves the cost of land, construction, regulation, insurance, taxes, housing supply, household income and the price consumers are being asked to pay for shelter.

Mortgage products operate after most of those costs have already been established.

We can build a smarter bridge between a qualified borrower and the home they can afford. We should.

What we cannot do is mistake a longer bridge for a closer destination.

That is the distinction I want the industry to protect as non-QM grows. Give responsible borrowers more ways to demonstrate that they can repay a mortgage. Use better underwriting instead of reflexively rejecting people whose finances are unconventional.

Then be equally willing to acknowledge when the problem is not access to the mortgage at all.

Sometimes the house simply costs too much.