US Mortgages Face the Insurance Bill

A fixed mortgage rate does not guarantee a fixed monthly payment. In the United States, homeowners insurance is generally required with a mortgage and its cost may be collected each month by the loan servicer. A higher premium can therefore reduce a household’s available budget without changing either the interest rate or the outstanding principal. A Federal Reserve Bank of Dallas study, published in March 2026, links this mechanism to mortgage delinquency. It identifies a risk channel. It does not show that a national mortgage-credit crisis has already begun.

The premium can move while the rate does not

For many US mortgages, the loan servicer collects a monthly reserve called an escrow payment. It is used, among other things, to pay homeowners insurance and often property taxes. Fannie Mae notes that most lenders require insurance when there is a mortgage and that a servicer may collect the premium with the monthly payment.¹

The mechanics are straightforward. The loan agreement fixes the interest rate. The insurer reprices the policy at renewal. If the premium increases, the monthly reserve increases as well. That is neither a disguised rate hike nor a reset of the loan. It is a housing cost added to debt service.

This matters because mortgage debt is long-lived. A household may have taken out a low-rate mortgage before rates rose, then face a larger insurance bill years later. Looking only at the mortgage rate leaves out a moving part of housing cost.

Dallas Fed research documents the channel, within a defined scope

The Dallas publication uses ICE McDash data, which record observed insurance payments for mortgage borrowers and cover roughly two-thirds of the US mortgage market. It reports that premiums rose by about 70 percent nationally from 2019 to 2025. In 2025, insurance represented 14 percent of the monthly payment measured in the study, which includes principal and interest, up from 10 percent in 2013.²

The more important figure is the associated credit finding. Related research, using 2015-23 loan data matched with credit records and moves, estimates that premium increases pushed roughly 31,000 mortgages into delinquency in 2022.² This is an econometric research estimate, not an administrative count of defaults with insurance as their sole cause.

The study also finds higher credit-card use and balances following premium increases. That offers a natural link to our analysis of deferred household debt: housing, insurance and revolving credit can pressure the same household budget. The available data do not allow their effects to be added borrower by borrower.

Dallas also publishes a projection out to 2055 for additional potential mortgage delinquencies. We do not use it as a headline number because it relies on a premium path supplied by First Street, a private climate-risk modelling company. It is a conditional scenario, not an official forecast of defaults.

Three states show pressure, not causation

A 2026 Federal Reserve Bank of Philadelphia brief examines Pennsylvania, New Jersey and Delaware. From December 2021 to June 2025, it finds average real premium increases per loan of 28.9 percent, 26.1 percent and 25.4 percent respectively.³

In the three states, a 25 percent premium increase is associated with a 0.6 percentage point higher 30-day delinquency likelihood in Pennsylvania, 0.3 point in New Jersey and 0.7 point in Delaware. The authors explicitly state that this correlation cannot establish causation: a borrower already under pressure may also have a lower credit score and pay more for insurance.³

That caution matters. The two Federal Reserve Bank publications use ICE McDash data. They are complementary views, not two independent measurements of the same effect. Philadelphia extends the observed regional period to June 2025, but its brief alone cannot establish that insurance caused a regional change in arrears.

The loss does not stop at the bank counter

A missed payment does not yet identify the eventual loss bearer. Some mortgages remain on a bank balance sheet. Others are securitized into MBS, securities backed by mortgage loans. For conventional loans acquired or guaranteed by Fannie Mae, credit risk can then be shared with a private mortgage insurer or transferred to specialist investors.

As of March 31, 2026, 46 percent of Fannie Mae’s conventional single-family book had at least one form of credit enhancement or risk transfer. The maximum loss its credit-risk-transfer investors could absorb was $38 billion; its maximum potential recovery under mortgage insurance was about $200 billion.⁴ These are not expected losses or blanket guarantees for every default. They describe a loss-sharing architecture.

The economic path is therefore more complex than “the insurer raises the premium, the bank loses money.” The homeowners insurer sets the cost of coverage. The household bears the increase first. If default follows, the loss depends on home value, loan-to-value, credit enhancement, recovery procedures and risk-transfer contracts. This distribution of exposure is the kind of mechanism examined in our article on the migration of credit risk.

Current data do not describe a national mortgage crisis

A risk channel is not a crisis diagnosis. In its May 2026 Financial Stability Report, the Federal Reserve says mortgage delinquency rates remain near the low end of their historical distribution and that very few homeowners have negative equity. The report’s mortgage data run through December 2025.⁵

Fannie Mae reports a similar order of magnitude in its own perimeter. Its serious-delinquency rate for conventional single-family loans, defined as 90 days or more past due or in foreclosure, was 0.58 percent at March 31, 2026, unchanged from the prior quarter and near historical lows.⁴ This book includes neither every US mortgage nor FHA and VA loans nor households without a mortgage.

These data draw a clear boundary. It would be wrong to attribute national mortgage-default movements to homeowners insurance. It would also be wrong to conclude that the risk is absent because the aggregate remains calm. The channel shows up first among households with little budget room, then in particular places and credit profiles, long before it can be seen in a national rate.

The data needed to measure the portfolio risk

Moving from a plausible mechanism to portfolio analysis requires loan-level information on:

• the premium change at renewal and its share of total monthly payment;
• 30-day and 90-day delinquency by income, credit score, loan-to-value and geography;
• cancellations, non-renewals and lender-placed coverage;
• home value after a loss event, which determines loss severity after foreclosure;
• the share actually absorbed by mortgage insurance and risk-transfer contracts.

There is no public national database that joins all five. The US Treasury’s insurance report provides a robust snapshot of the insurance market, with more than 246 million policies observed from 2018 to 2022, but not a mortgage-default file. It finds that average premiums per policy rose 8.7 percent faster than inflation over that period, with wide differences across ZIP Codes.⁶

The signal is serious, but its scale remains to be measured. Home insurance becomes a credit variable because it changes payment capacity and can push constrained households toward arrears. It does not, at this stage, turn the US mortgage market into a new subprime crisis.

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Primary and institutional sources

• Federal Reserve Bank of Dallas, “Home insurance premiums influence mortgage delinquencies, relocations,” 24 March 2026: ICE McDash coverage, national premium trend, econometric estimate and projection limits.
• Federal Reserve Bank of Philadelphia, “Homeowners insurance premiums and mortgage delinquency,” 2026: regional data through June 2025, correlations and an explicit methodological caveat.
• US Treasury, Federal Insurance Office, “Analyses of U.S. Homeowners Insurance Markets, 2018-2022,” 2025: coverage, premiums, availability and the 246-million-policy scope.
• Federal Reserve, Financial Stability Report, May 2026: aggregate mortgage delinquency and homeowner equity.
• Fannie Mae, First Quarter 2026 Form 10-Q, pp. 23-28: serious delinquency, mortgage insurance and credit-risk transfer.
• Fannie Mae, homeowners insurance coverage guide: insurance requirement and possible collection by the servicer.

Reading limits. The 31,000-mortgage figure is a research estimate for 2022, not a count of defaults caused by insurance. The Dallas and Philadelphia series partly rely on the same data provider, ICE McDash. Treasury’s report covers insurance policies from 2018 to 2022, not mortgages or defaults. Fannie Mae’s 0.58 percent rate covers only its conventional book and uses a 90-day-or-foreclosure definition. Aggregate federal data do not isolate the share of 2026 mortgage arrears caused by insurance. Sources accessed on 5 August 2026.

Footnotes

1. Fannie Mae, “Insurance coverage guide”. ↩

2. Federal Reserve Bank of Dallas, “Home insurance premiums influence mortgage delinquencies, relocations,” 24 March 2026. ↩ ↩²

3. Federal Reserve Bank of Philadelphia, “Homeowners insurance premiums and mortgage delinquency,” 2026, pp. 5-6. ↩ ↩²

4. Fannie Mae, First Quarter 2026 Form 10-Q, pp. 23-28. ↩ ↩²

5. Federal Reserve, Financial Stability Report, May 2026, pp. 56-57. ↩

6. US Treasury, Federal Insurance Office, “Analyses of U.S. Homeowners Insurance Markets, 2018-2022,” 2025. ↩