How Medical Debt Became a Mass Phenomenon

Medical debt in the United States is not concentrated among the uninsured. Most of it is held by people who had coverage on the day they got sick. That single fact breaks the intuitive explanation, and it points at the actual mechanism: over roughly two decades, the amount an insured household is required to pay out of pocket grew much faster than the amount that household earns. Coverage did not disappear. It stopped covering enough.

The scale

KFF’s analysis of U.S. Census Bureau Survey of Income and Program Participation data, published in 2022 and reflecting 2021, found that Americans owed at least $220 billion in medical debt. A KFF and NPR investigation the same year found that roughly 100 million adults carried some form of health care debt. Those are 2021 and 2022 figures and should be read with those dates attached.

Two hundred twenty billion dollars is a floor, not a ceiling, because the figure counts debt the surveys can see. It misses balances moved onto credit cards, borrowed from family, or carried as an unpaid provider balance the household has not characterized as debt. The real number is larger and nobody knows by how much.

Insurance stopped meaning paid for

The mechanism starts with the deductible. In its 2025 Employer Health Benefits Survey, KFF found that 88 percent of covered workers with single coverage face a general annual deductible before the plan pays for most services, that the average deductible for those workers is $1,886, and that 34 percent of covered workers are in a plan with a single coverage deductible of $2,000 or more. At firms with 10 to 199 workers, the average single deductible runs $2,631 against $1,670 at larger firms.

Sit with what that means. Before coinsurance, before the out of pocket maximum, before anything unusual happens, an insured worker at a small employer is looking at roughly $2,600 of first dollar exposure in a plan year. A single emergency department visit clears it.

Premiums took the raise

The other half of the squeeze is the premium itself. KFF’s 2025 survey put the average annual premium for employer sponsored family coverage at $26,993, a 6 percent increase over 2024, with covered workers contributing an average of $6,850 out of their paychecks, about 26 percent of the total. Single coverage averaged $9,325.

Economists generally treat the employer share as compensation the worker never sees. Whether or not you accept that framing fully, the visible worker contribution alone, $6,850 a year for family coverage, is roughly 8.6 percent of a median household income before the household has consumed a dollar of actual care.

Wages did not keep pace

Median household income sits around $80,000, according to the U.S. Census Bureau’s 2023 estimate. At the bottom of the wage distribution the picture is starker: the federal minimum wage has been $7.25 an hour since 2009, per the U.S. Department of Labor, which is roughly $15,080 a year at full time hours. Premiums and deductibles rose across that entire period. The wage floor did not move at all.

This is where the personal responsibility framing collapses. A household cannot budget against a cost it cannot see in advance, cannot decline, and cannot predict the timing of. The Census Bureau income series and the health cost series simply diverge, and no amount of household discipline closes a gap produced by two curves moving at different rates.

Households have no buffer

The Federal Reserve’s Survey of Household Economics and Decisionmaking, reporting on 2025, found that 63 percent of adults said they would cover a $400 emergency expense exclusively with cash, savings, or a credit card paid off at the next statement. That share was unchanged from 2024. Read from the other direction, more than a third of adults would not cover $400 that way.

The Federal Reserve also found that 18 percent of adults said the largest emergency expense they could handle using only savings was under $100. Set that against a $1,886 average deductible and the arithmetic finishes itself. For a large share of insured households, the deductible is not a cost. It is a debt event waiting for a diagnosis.

The debt does not stay in health care

Once a household cannot pay a medical balance, the obligation migrates. It moves onto credit cards, where it stops being medical debt in the data and starts being revolving consumer debt at a much higher interest rate. It moves to family members. It becomes a provider payment plan, then a delinquent one, then a collections account.

That migration is why medical debt is undercounted and why credit reporting reforms, which lengthened the waiting period before medical collections appear and removed paid and small balance medical collections from reports, changed the visibility of the problem more than its size. The balance is still owed. It is just harder to observe.

Why this reads as structural rather than individual

Every element above is a system level parameter, not a personal choice. The worker does not set the deductible. The worker does not negotiate the premium. The worker does not know the price of the procedure before consenting to it, and frequently cannot know it afterward without requesting an itemized statement. The one variable under household control, savings, is constrained by the same wage stagnation that makes the costs unaffordable in the first place.

Affordability organizations put medical debt in the same bucket as housing and childcare for that reason: three necessary expenses that outran earnings over the same period, producing debt in households that did nothing unusual. Anyone wanting a longer breakdown of how the debt spreads across household types will find the pattern holds across income levels, which is the part that surprises people.

What would actually move the number

Only two categories of change touch this. Reduce what care costs, which is a price problem rooted in how American health care is bought and sold. Or raise what households earn and hold in reserve, which is a wage and savings problem.

Everything else, financial assistance applications, bill review, payment plans, credit report reforms, redistributes the burden or hides it. Useful, worth doing, and not a fix. The debt is what happens when a necessary purchase costs more than the buyer has, repeated across a hundred million people.

About Post Author

Pluralist

See author's posts