The Costs Turned Around.
The Age Didn't.

Where part 1 left off

In The Price-to-Income Ratio, the data told a strange story. For forty years, the typical American first-time homebuyer was between 28 and 33 years old. Then the range broke: 36 by 2022, a record 40 by 2025. The usual explanation, that houses are simply unaffordable, only half survives contact with the numbers. The monthly payment on the median new home sits almost exactly at its 56-year average. The entry price, the price-to-income ratio, did spike to its all-time record in 2022, and the first leg of the age breakout (33 to 36) happened in exactly that window. That was the door. The charts above are the zoom-in: both cost lines peaked and turned around. The age line never got the memo.

But then the door started easing. The ratio has come down every single year since the 2022 peak. And the age kept climbing anyway: 38 in 2024, 40 in 2025. Three years of an easing door with buyers getting older, not younger. Something outside the housing market, outside mortgage rates, is standing in front of the door.

The objective of this page: follow the data to that force. The short version is that it is debt, but not the way the internet says it. The long version is five charts.

The chart skeptics will send us, and why we agree with it

Start with the strongest argument against the debt story. Household debt service, all Americans, all debt: peak in 2007, record low in 2021, sitting below its own two-decade average today. America as a whole does not have a debt payment problem, and we are not going to pretend it does.

But look at who is inside that average. It is dominated by homeowners, tens of millions of them locked into pandemic-era mortgage rates they will never see again. The same lock-in that starves housing inventory also makes the national debt picture look calm. The average is being held down by the people who already got in. This series is about the people trying to get in.

A debt category the 1981 buyer never had

In 2006, the Fed's consumer credit data put total student loans at $481 billion. By the end of 2024 it was $1.78 trillion, 3.7x in under two decades, climbing roughly $80 billion a year through 2019 before the payment pause flattened the top. When the 29-year-old first-time buyer of 1981 walked into a lender's office, this mountain did not exist.

And it did not land evenly. The Treasury Department ran the cohort numbers, families headed by 25 to 39 year olds, the exact first-time buyer demographic, using the Fed's Survey of Consumer Finances:

2025: the year the lates came back

Here is the part of this story that almost nobody outside the mortgage industry understands, and it is the part loan officers watched happen at the desk, application by application, in the spring of 2025.

For nearly five years, missed student loan payments effectively could not hurt a credit score. Payments and interest were paused in March 2020. When payments resumed in October 2023, the Department of Education added a one-year on-ramp: borrowers who fell behind would not be reported to the credit bureaus. That protection ended in the fall of 2024. Then the switch flipped. Thirty, sixty, and ninety day lates that had been accumulating invisibly began landing on credit reports all at once.

The credit data shows the switch flipping with almost no transition. The share of student loan balances newly rolling into serious delinquency went from under one percent to eight percent to nearly thirteen percent in two quarters:

And what that did to scores, in a single quarter:

Why this destroys mortgage applications specifically: home loans have credit score floors. Conventional financing typically requires a 620; FHA's best terms typically require a 580. A renter who was quietly at 660 and saving for a down payment, and who fell behind on a resumed student loan payment, could wake up in the spring of 2025 at 510 and find every program door closed at once. Not because their income changed. Not because the house got more expensive. Because a reporting rule changed.

Back to the old normal, at the worst possible time

Within five quarters, the share of all student loan balances 90 or more days delinquent went from under one percent back above ten, which is roughly where it sat throughout the 2010s. The delinquency rate is not unprecedented. What is unprecedented is the cohort it landed on: buyers already facing a door near 3.8 times income, already the oldest first-time buyers ever recorded.

What it costs at the mortgage desk

Even for the borrower who never missed a payment, the debt still shows up, because monthly student loan payments count in the debt-to-income ratio that determines how much home a lender can approve. The payments convert directly into house you cannot buy. At today's rates, every dollar of monthly debt payment is roughly 158 dollars of loan you no longer qualify for.

The reconciliation

So here is the full two-force story, honestly told. The first leg of the age breakout, 33 to 36 in 2021 and 2022, was the door: the entry price of a home hitting its all-time record against income. The second leg, the climb to 38 and then a record 40 even as the door eased, coincides with the other down payment coming due: a debt category that grew from half a trillion to nearly two trillion dollars, concentrated on the first-time buyer cohort, whose consequences were switched back on all at once in 2025, first through credit scores and always through debt-to-income.

National debt statistics look calm because they average the locked-in with the locked-out. The first-time buyer is the locked-out, carrying the one debt their parents' generation never had, into the hardest entry market their parents' generation never faced.

And the reason this page exists: unlike the price of houses, this force is addressable at the individual level. Payment plans that lower the DTI hit, rehabilitation paths for damaged credit, timing strategies for when to apply. That is a strategy conversation, and it is exactly the hour of work that turns a frozen application into a plan.