$200 Billion in Deferred Care Costs
Medical debt is the most common form of debt in collections in the United States and one of the most pervasive household liabilities overall. The Census Bureau’s Survey of Income and Program Participation (SIPP) estimated approximately $200 billion in outstanding medical debt as of 2023, while a 2025 study in Health Affairs Scholar calculated $194 billion in medical debt actively held by collectors. The CFPB has separately tracked $88 billion in medical bills on credit reports as of 2021, later falling to $49 billion by 2023 after credit bureau policy changes (but these figures dramatically undercount total medical debt because most of it never reaches credit reports. In 2024, 36% of U.S. households reported some form of medical debt, including past-due bills, payment plans with providers, and borrowed funds for medical expenses. Medical and dental providers have become, by default, one of the largest sources of consumer credit in the country) most of it involuntary.
An Involuntary Liability
Unlike mortgages, auto loans, or even credit card balances, medical debt is almost never a deliberate financial decision. It arises when the cost of necessary care exceeds a household’s ability to pay at the point of service. The KFF/New York Times Medical Bills Survey found that 72% of adults with medical debt traced it to a one-time or short-term event (a single hospitalization, an accident, or an emergency room visit) rather than chronic conditions building up gradually. Three-quarters of insured patients with bill problems said their copays, deductibles, or coinsurance were more than they could afford. This is the structural paradox of American medical debt: the majority of people carrying it have health insurance. In fact, the 2024 Health Affairs study found that households where everyone had insurance still reported a 35.8% rate of medical debt. High-deductible health plans, surprise billing, out-of-network charges, and the sheer complexity of insurance have created a system where even covered care routinely produces unaffordable bills.
The Credit Report Revolution
The most dramatic change in the medical debt landscape occurred in 2022–2023, when the three major credit bureaus (Equifax, Experian, and TransUnion) enacted sweeping changes to medical debt reporting. First, paid medical collections were removed from credit reports. Second, the grace period before medical debt could appear was extended from 180 days to one year. Third, starting in April 2023, all medical collections under $500 were excluded. The impact was immediate and massive: the Urban Institute’s credit bureau data shows the share of consumers with medical debt on their credit files plunged from 16% in August 2018 to 12.6% in February 2022, then collapsed to just 5% by August 2023. More than 15 million consumers had all their medical collections erased from their credit files. However, this did not erase the underlying debt, it merely made it invisible to lenders and credit scoring models. The CFPB finalized a rule in January 2025 to ban medical debt from credit reports entirely, but a federal court struck down the rule in July 2025, leaving the voluntary credit bureau policies as the primary protection.
Who Carries the Burden
Medical debt is technically universal (it cuts across income, age, and insurance status) but its weight falls unevenly. The 2024 Health Affairs study found that Black households had a 47.8% rate of any medical debt, compared to 34% for white households. Households earning under $35,000 had a 40.7% rate, while those above $175,000 reported 17.6%. Rural communities bore the heaviest burden, with 40.6% reporting medical debt versus 36.4% in metro areas. The age distribution peaks in middle age: 42% of adults aged 45–54 had medical debt, reflecting the intersection of rising health needs and pre-Medicare coverage gaps. Notably, even among high-income households ($100,001–$175,000), 34.4% reported medical debt, suggesting that for the $500K+ net worth segment, medical bills are a common friction point even if the amounts may be manageable relative to assets. The 2024 Gallup/West Health survey found that 12% of U.S. adults (31 million people) borrowed an estimated $74 billion in the prior year specifically to pay medical bills.
Wealth & Balance Sheet Implications
For higher-net-worth households, medical debt is typically a cash flow disruption rather than a balance sheet crisis (but it can still erode wealth through indirect channels. KFF found that 48% of adults with medical debt used up all or most of their savings, 41% increased credit card debt for other purchases, and 40% took on extra work. Census data shows households that struggled with rent or mortgage payments were 3.5 times more likely to also carry high medical debt burdens (12.4% vs. 3.5%). The cascading effect is significant: an unexpected $15,000 surgical bill can trigger higher-interest credit card debt, deferred retirement contributions, or liquidation of taxable investment accounts at unfavorable times. For the wealth-building segment specifically, the risk is not insolvency but opportunity cost. Every dollar diverted to medical bill payments is a dollar not compounding in investment accounts. The KFF survey found that 18% of adults with medical debt) roughly 1 in 5, do not expect to ever pay it off, creating a permanent drag on household balance sheets.
Data Notes & Sources
Medical debt data comes from multiple sources that use different definitions and methodologies, which is why estimates vary widely. The Census Bureau’s Survey of Income and Program Participation (SIPP) asks about unpaid medical bills at the household level and produces the $200–$220 billion estimates. The CFPB’s Consumer Credit Panel tracks medical collections on credit reports, producing much lower figures ($49–$88 billion) because most medical debt never appears on credit files. The 2025 Health Affairs Scholar study linked survey responses with actual credit records for the same individuals, enabling the most comprehensive comparison of these measures. The EBRI/NHIS data on the share of households with past-due bills uses the CDC’s National Health Interview Survey, which has consistently measured this metric since the early 2000s. Time series estimates for total debt prior to 2017 are synthesized from MEPS out-of-pocket spending data, Commonwealth Fund surveys, and academic estimates. The household count series uses SIPP rates applied to Census total household counts. All percentage-of-households figures should be interpreted cautiously, as the broad definition (including payment plans) yields much higher rates (~36%) than the narrow “unable to pay” definition (~15–19%).