New Deloitte research shows the bottom 20% of US households spend nearly 88 cents of every dollar of income on food, shelter, and utilities alone — before the Iran war pushed energy costs even higher. For lenders, the delinquency signals are already flashing.
Inflation doesn’t hit everyone equally. It never has. But new research from Deloitte makes the disparity starkly clear: for the bottom fifth of American households by income, the basic cost of staying housed, fed, and warm now consumes nearly 88 cents of every dollar they earn — before they spend a single dollar on anything else.
That number is the headline from Deloitte’s March 2026 Economics Insider, which analyzed US consumer expenditure data from the Bureau of Labor Statistics. It reveals a widening divide in how inflation lands across the income spectrum — and what it means for the economy’s most financially exposed households.
The core finding is simple but alarming. When Deloitte economists added up average annual spending on food at home, utilities (electricity and natural gas), and shelter for households in the bottom income quintile, it came to nearly 88% of their average annual pre-tax income. That ratio falls steadily as income rises — but for the bottom 40% of households combined, average total expenditure actually exceeds pre-tax income. They are spending more than they make.
The chart below illustrates how dramatically this burden falls as you move up the income ladder.
This isn’t a new problem — but it is getting worse. Inflation is no longer being driven primarily by housing costs, which have begun to ease. Instead, it has shifted to the things that matter most to low-income households: food, energy, and utilities. Beef and veal prices are up 20.9% since mid-2024. Coffee and beverage prices have risen 15.2%. Electricity is up 8% since mid-2024. Natural gas for household use has risen 13%.
These aren’t discretionary expenses. You can’t skip dinner, skip heating your home in winter, or skip the lights. For households already spending every dollar they have, price increases in these categories translate directly into debt.
The evidence of financial stress is accumulating rapidly. Federal Reserve economists at the Boston Fed found that low-income consumers have been accumulating credit card debt at a faster pace since the pandemic than their higher-income counterparts. Delinquency rates have risen fastest among subprime, near-prime, and low-income borrowers. The same pattern is showing up in auto loans.
Utility bills are another leading indicator. The average overdue balance on utility bills has risen 32% since 2022, with deep-subprime and subprime households most affected. Nearly 1 in 20 American households now carries utility debt so severe that providers have referred — or are expected to soon refer — the account to a third-party collector.
These are early warning signals for the broader consumer credit market.
What makes the picture particularly difficult is that low-wage workers — the very people most exposed to essentials inflation — have also seen the weakest employment and wage trends.
Since July 2025, employment in low-wage occupations has fallen 2.4%, while high-wage occupations added 1.8% and medium-wage added 0.3%. Wage growth has also slowed more sharply for low-skill workers than for mid- and high-skill ones, as the chart below shows.
The combination — rising essential costs, stagnating wages, and falling employment — is a textbook stress scenario for consumer credit. Households under pressure tend to prioritize utility bills and rent over loan payments. That sequencing shows up in delinquency data weeks or months later.
For consumer lenders, the Deloitte data reinforces a credit risk picture that is becoming harder to ignore. Near-prime and subprime borrowers are not just facing higher prices — they are facing higher prices on the things they cannot stop buying, at the same time their employment and wage prospects are weakening.
Deloitte’s own financial well-being index shows that the lowest-earning 60% of Americans are no better off than they were three years ago. The Fed’s Beige Book for January 2026 confirms that low- and moderate-income consumers are becoming more price-sensitive and pulling back on non-essential spending. When discretionary spending falls, so does the buffer that helps households service debt.
With the Fed projecting only one rate cut for 2026, there is no near-term relief in borrowing costs on the horizon. And now, with gas prices above $4 a gallon and diesel surging past $5, the Iran war is layering a new energy shock on top of the inflation pressures already in place.
The bottom of the income distribution is under real stress. The data in lenders’ own portfolios — early delinquency rates, payment timing, utilization trends — will likely confirm what Deloitte’s research is already showing at the macro level.
Data and analysis in this article are drawn from Deloitte Insights, “Changing inflation dynamics pose new risks for the US economy,” March 31, 2026. Chart data sourced from the US Bureau of Labor Statistics Consumer Expenditure Survey and the Federal Reserve Bank of Atlanta Wage Growth Tracker via Deloitte.
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