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How does US inflation affect household budgets and the cost of living?

Inflation means the average price of goods and services is rising, so each unit of money buys less, and US price rises accelerated to 3.7% in the year to September.

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Covers: This page explains how rising consumer prices change what households can afford, covering the main channels such as food, housing, energy and transportation, and how inflation differs from the overall cost of living. It does not give personal financial advice or predict future inflation rates.

Also answers: How does inflation affect the cost of living? · What does inflation mean for household budgets? · How does rising inflation impact families? · Why is the cost of living going up with inflation?

The short answer

Evidence-backed AI-prepared starting map

Inflation is an increase in the average price of goods and services, measured with a price index such as the consumer price index (CPI); as the general price level rises, each unit of currency buys fewer goods and services, so inflation is a reduction in the purchasing power of money. The inflation rate is the annualised percentage change in that index. In…12

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a person pushing a shopping cart full of food
Photo: Karsten Winegeart

At a glance

The picture in numbers

Live · updated just now

Headline US inflation rate, driven by motor fuel costs

3.7%

4 in every 100

of US price rises in the year to September2
Survey of household heads, not US households
  • increased food expenditure58.2%
  • shift to cheaper staples55.2%
  • experienced food insecurity64.6%
of households reporting food-related changes4
Survey of household heads, not US households
  • mild15.8%
  • moderate27.5%
  • severe20.3%
of households by severity of food insecurity4
Qualitative study during the cost-of-living crisis

18 interviews

interviews with food-bank users in North-West England5

The evidence behind it

6 sources
  • Other studies and data3
  • Background3

Published in 2026

Sources on this page by kind and year
SourceKindYear
US inflation rises more than expected - here's what is happening with pricesBackground2026
Inflation (Wikipedia)BackgroundUnknown
2021–2023 inflation surge (Wikipedia)BackgroundUnknown
Increased food prices and changes in food consumption behavior: an early precursor to malnutrition, and widespread food insecurity among the Egyptian population.Other studies and data2026
Voices from the foodbank: experiencing food insecurity in North-West England during the cost-of-living crisis.Other studies and data2026
Socioeconomic disparities and nutritional aging: how food insecurity and financial hardship accelerate health decline in older adults.Other studies and data2026

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In brief

  1. Inflation is a rise in the average price level, measured by an index such as the CPI; it means each unit of currency buys fewer goods and services, so purchasing power falls.1

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  2. US price rises accelerated to 3.7% in the year to September, more than expected, driven by higher motor fuel costs.2

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  3. The 2021–2022 surge was attributed to pandemic dislocation, supply chain disruptions, fiscal and monetary stimulus, and price gouging, with the war in Ukraine worsening oil, gas, fertilizer and food prices.3

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  4. When food prices rise, households report spending more and shifting to cheaper carbohydrate-rich staples, cutting animal protein and dairy — a budget response with a nutritional cost.4

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  5. The squeeze is not only financial: food-bank users describe anxiety, stress, depression, loss of dignity and agency, and parental guilt, and food insecurity in older adults is linked to poorer diet quality and higher risk of frailty and cognitive decline.56

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Quick questions from connected pages

What it means for you

Which fits you?

Pick the situation closest to yours. Each answer says what it rests on.

If you are budgeting for a household and food prices are rising

expect pressure to show up as substitution rather than only as higher spending: households in the evidence reported both increased food expenditure and a shift toward cheaper carbohydrate-rich staples, with reduced animal protein and dairy.4

Evidence-backed

If you drive a lot or depend on a car

the reported acceleration in US prices was driven by higher motor fuel costs, so this is the channel most directly affecting you in the latest reading.2

Evidence-backed

If you are an older adult on a limited or fixed income

the evidence links food insecurity and financial hardship in older adults to poorer diet quality, higher odds of overweight or obesity (OR ≈ 1.29), and increased risk of sarcopenia, frailty and cognitive decline.6

Evidence-backed

If you are relying on a food bank or similar support

participants in the evidence described anxiety, stress, depression, loss of self-worth and dignity, loss of agency and parental guilt, alongside the practical difficulty of being food insecure while accessing help.5

Evidence-backed

If you want to compare your own situation with a national inflation figure

treat them as different things: the national rate is an average across a general price index, while your cost of living depends on what your household actually buys, where you live and what you earn.12

Interpretation

If you are trying to stretch a limited food budget

the evidence points to optimising limited household budgets for a balanced diet, and the authors of the food-price study call for nutrition health education programmes for exactly this purpose.4

Evidence-backed

The full explanation

Evidence-backed AI-prepared starting map

Inflation is an increase in the average price of goods and services, measured with a price index such as the consumer price index (CPI); as the general price level rises, each unit of currency buys fewer goods and services, so inflation is a reduction in the purchasing power of money. The inflation rate is the annualised percentage change in that index. In the year to September, US price rises accelerated to 3.7%, driven by higher motor fuel costs. For households, this shows up as higher costs for the things they buy regularly — food, fuel, energy, housing and transport — which is why inflation and the cost of living are often discussed together, even though they are not the same measure.12

What this rests on6 independent sources
  • Evidence 23
  • Interpretation 6

The full story · 6 chapters

01

What inflation is, and why it changes what a household can afford

AI summary:Inflation is a rise in the average price level measured by an index like the CPI, meaning money buys less and household budgets stretch less far.

Evidence-backed

Evidence-backed: Inflation is an increase in the average price of goods and services in terms of money. It is measured using a price index, typically a consumer price index (CPI), and the inflation rate is the annualised percentage change in that index. When the general price level rises, each unit of currency buys fewer goods and services, so inflation corresponds to a reduction in the purchasing power of money. Deflation, the opposite, is a decrease in the general price level.1

Interpretation

Interpretation: For a household budget, the practical meaning is that the same nominal income stretches less far: the basket of goods and services a family normally buys costs more, so either spending rises or quantities and quality fall. This is the link between inflation and the everyday sense of a rising cost of living.1

Evidence-backed

Evidence-backed: Inflation is commonly attributed to increases in the money supply, fluctuations in real demand for goods and services (demand shocks, including changes in fiscal or monetary policy), changes in available supplies such as during energy crises (supply shocks), significant decreases in interest rates set by the central bank, and changes in inflation expectations, which may be self-fulfilling.1

02

The latest US picture: prices rising faster than expected

AI summary:US price rises accelerated to 3.7% in the year to September, more than expected, driven by higher motor fuel costs.

Evidence-backed

Evidence-backed: The pace of US price rises increased to 3.7% in the year to September, a figure higher than expected, driven by higher motor fuel costs. This is a confirmed headline reading of the inflation rate, not a measure of any individual household's costs.2

Interpretation

Interpretation: Because the reported acceleration was driven by motor fuel, households that spend a larger share of their budget on driving — for example, long commutes or reliance on a car — are the ones most directly exposed to this particular move. The source does not break the figure down by category or by household type, so the size of that exposure for any given family is not established here.2

03

How the recent inflation surge reached household budgets

AI summary:The 2021–2022 inflation surge is attributed to pandemic dislocation, supply chain disruptions, stimulus, price gouging and the war in Ukraine.

Evidence-backed

Evidence-backed: Following the start of the COVID-19 pandemic in 2020, a worldwide surge in inflation began in mid-2021 and lasted until mid-2022, with many countries seeing their highest inflation rates in decades. It has been attributed to pandemic-related economic dislocation, supply chain disruptions, the fiscal and monetary stimulus provided in 2020 and 2021 by governments and central banks, and price gouging. Preexisting factors that may have contributed include housing shortages, climate impacts and government budget deficits.3

Evidence-backed

Evidence-backed: Recovery in demand from the COVID-19 recession had, by 2021, revealed significant supply shortages across many business and consumer sectors. In early 2022, the effect of the Russian invasion of Ukraine on global oil prices, natural gas, fertilizer and food prices further exacerbated the situation, and higher gasoline prices were a major contributor to inflation as oil producers saw record profits. Debate arose over whether inflationary pressures were transitory or persistent, and to what extent price gouging was a factor.3

Interpretation

Interpretation: These channels matter for budgets because they hit essentials first: fuel and energy feed into transport and heating costs, and fertilizer and food prices feed into grocery bills. Housing shortages and budget deficits act more slowly, through rents and through the wider economic backdrop.3

04

Food: the clearest documented channel from prices to household behaviour

AI summary:Rising food prices led households to spend more and shift to cheaper staples, cutting animal protein and dairy, with most experiencing food insecurity.

Evidence-backed

Evidence-backed: In a survey of household heads, most participants reported increased food expenditure (58.2%) and a dietary shift toward cheaper carbohydrate-rich staple foods (55.2%). Reduced consumption of animal protein and dairy products was also observed. Overall, 64.6% of households experienced food insecurity: 15.8% mild, 27.5% moderate and 20.3% severe. Significant predictors of food insecurity included female respondents (OR = 2.425). The authors conclude that increased food prices lead to changes in food consumption patterns, with shifts toward less nutritionally valuable foods, and deprive most households of food security.4

Interpretation

Interpretation: The pattern is a substitution story: when food prices rise, households protect total calories by trading down in nutritional quality — more cheap staples, less animal protein and dairy. That is a budget response, and it carries a nutritional cost.4

Evidence-backed

Evidence-backed: Food insecurity and financial hardship are consistently associated with poorer diet quality, including lower Healthy Eating Index scores (roughly 51 versus more than 57 in food-secure peers), and with increased risk of adverse outcomes such as sarcopenia, frailty and cognitive decline. Food-insecure older adults are also more likely to experience overweight or obesity (OR ≈ 1.29), reflecting reliance on energy-dense, nutrient-poor diets. These disparities are shaped by structural and socioeconomic factors, including low income, limited education, inadequate social safety nets and inequitable neighbourhood food environments.6

Evidence-backed

Evidence-backed: Around 28% of the global population experiences moderate or severe food insecurity, with older adults disproportionately affected in resource-limited settings. Older age is itself a major risk factor for chronic diseases, frailty and disability, particularly in socially disadvantaged groups, which is why rising food costs fall hardest on older households with fixed incomes.6

05

Beyond the shopping basket: what the squeeze does to people

AI summary:Food-bank users described anxiety, stress, depression, loss of dignity and agency, and parental guilt, showing the squeeze is not only financial.

Evidence-backed

Evidence-backed: In 18 semi-structured interviews with people recruited from three food banks in North-West England during the cost-of-living crisis, participants described the challenges of being food insecure while accessing support, and how this had detrimental impacts on their mental health. Four main themes emerged: precarious circumstances, loss of self-worth and dignity, loss of agency, and parental guilt. Participants commonly reported increased anxiety, stress and depression, along with feelings of parental guilt and loss of dignity.5

Evidence-backed

Evidence-backed: This is the part of the cost-of-living story that headline inflation figures do not capture: the administrative and emotional labour of managing a shortfall, and the shame and stigma attached to using support. The authors argue that consideration of mental health needs is required, and that perceptions of shame and stigma should be reduced.5

Evidence-backed

Evidence-backed: The older-adult evidence points in the same direction from a different angle: because food insecurity and financial hardship are tied to poorer diet quality and to frailty and cognitive decline, the budget squeeze can compound health problems that are already more likely with age. The authors call for a shift from individual-level interventions to systemic, interdisciplinary and culturally tailored approaches.6

06

Inflation versus the cost of living

AI summary:Inflation is a measurable national average, while the cost of living is personal and depends on what a household buys, where it lives and what it earns.

Interpretation

Interpretation: Inflation is a specific, measurable concept: an increase in the average price of goods and services, expressed as the annualised percentage change in a general price index such as the CPI. The cost of living is broader and more personal — it depends on what a particular household actually buys, where it lives, and what it earns. A national inflation rate can therefore rise while one family's costs are flat, or fall while another family's costs keep climbing.12

Evidence-backed

Evidence-backed: The evidence here illustrates the gap. The US figure is a single national number driven by motor fuel, while the household-level studies show what happens inside budgets: substitution toward cheaper staples, reduced animal protein and dairy, and measurable food insecurity. Those outcomes depend on income, household composition and existing disadvantage — the older-adult review notes that low income, limited education, inadequate social safety nets and inequitable neighbourhood food environments shape who is hit hardest.246

Before you go

What to remember

Try to recall each hidden figure before you reveal it. Remembering, not rereading, is what makes it stick.

  1. US price rises accelerated to in the year to September, more than expected, driven by higher motor fuel costs.

  2. The surge was attributed to pandemic dislocation, supply chain disruptions, fiscal and monetary stimulus, and price gouging, with the war in Ukraine worsening oil, gas, fertilizer and food prices.

  3. Inflation is a rise in the average price level, measured by an index such as the CPI; it means each unit of currency buys fewer goods and services, so purchasing power falls.

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  1. 1
    Inflation (Wikipedia)
    WikipediaPublished Oct 14, 2026Checked Oct 14, 2026
    “In economics, inflation is an increase in the average price of goods and services in terms of money, though it originally referred to the increase of the money supply (monetary inflation) that can cause such a universal shift. This increase is measured using a price index, typically a consumer price index (CPI). When the general price level rises, each unit of currency buys fewer goods and services; consequently, inflation corresponds to a reduction in the purchasing power of money. The opposite of inflation is deflation, a decrease in the general price level of goods and services. The common measure of inflation is the inflation rate, the annualized percentage change in a general price index. Changes in inflation are widely attributed to increases in the money supply, fluctuations in real demand for goods and services (also known as demand shocks, including changes in fiscal or monetary policy), changes in available supplies such as during energy crises (also known as supply shocks), significant decreases in interest rates set by the central bank, or changes in inflation expectations, which may be self-fulfilling.”
  2. 2
    US inflation rises more than expected - here's what is happening with prices
    BBC NewsPublished Oct 14, 2026Checked Oct 14, 2026
    “The pace of price rises increased to 3.7% in the year to September, driving by higher motor fuel costs.”
  3. 3
    2021–2023 inflation surge (Wikipedia)
    WikipediaPublished Oct 14, 2026Checked Oct 14, 2026
    “Following the start of the COVID-19 pandemic in 2020, a worldwide surge in inflation began in mid-2021 and lasted until mid-2022. Many countries saw their highest inflation rates in decades. It has been attributed to various causes, including pandemic-related economic dislocation, supply chain disruptions, the fiscal and monetary stimulus provided in 2020 and 2021 by governments and central banks around the world in response to the pandemic, and price gouging. Preexisting factors that may have contributed to the surge included housing shortages, climate impacts, and government budget deficits. Recovery in demand from the COVID-19 recession had, by 2021, revealed significant supply shortages across many business and consumer economic sectors. In early 2022, the effect of the Russian invasion of Ukraine on global oil prices, natural gas, fertilizer, and food prices further exacerbated the situation. Higher gasoline prices were a major contributor to inflation as oil producers saw record profits. Debate arose over whether inflationary pressures were transitory or persistent, and to what extent price gouging was a factor.”
  4. 4
    Increased food prices and changes in food consumption behavior: an early precursor to malnutrition, and widespread food insecurity among the Egyptian population.
    Postgraduate medical journal (Hassan & Koabar)Published Sep 1, 2026Checked Oct 14, 2026
    “Data was collected using a pretested structured questionnaire targeting household heads. The tool assessed sociodemographic characteristics, food consumption changes, and FS status.ResultsMost participants reported increased food expenditure (58.2%) with dietary shift toward cheaper carbohydrate-rich staple foods (55.2%). Reduced consumption of animal protein and dairy products was also observed. Overall, 64.6% of households experienced FI: 15.8% mild, 27.5% moderate, and 20.3% severe levels. Significant predictors of FI included female respondents (OR = 2.425, P ConclusionIncreased food prices lead to changes in food consumption patterns with shifts toward less nutritionally valuable foods and deprive most households of FS. Therefore, there is an urgent need for national nutrition health education programs to help households optimize the use of limited household budgets to achieve a balanced diet.”
  5. 5
    Voices from the foodbank: experiencing food insecurity in North-West England during the cost-of-living crisis.
    Journal of public health (Oxford, England) (Khan et al.)Published Sep 1, 2026Checked Oct 14, 2026
    “There is limited understanding of the extent and depth of the health impacts on those facing food insecurity. This qualitative study examines lived experiences of food bank users facing food insecurity in the North-West of England and the impacts on their mental health.Methods18 semi-structured interviews were conducted with participants recruited from three food banks in North-West of England. Thematic analysis was used to analyze interview data. Two public advisors also reviewed analysis.ResultsParticipants described the challenges of being food insecure while accessing support from a food bank and how this had detrimental impacts on their mental health. Four main themes of mental health impacts emerged from the interviews: precarious circumstances, loss of self-worth and dignity, loss of agency, and parental guilt.ConclusionsIndividuals accessing food banks face severe and detrimental impacts on their mental health and wellbeing. Food bank users commonly reported increased anxiety, stress, and depression, along with feelings of parental guilt and loss of dignity. Consideration of mental health needs is required and how perceptions of shame and stigma can be reduced.”
  6. 6
    Socioeconomic disparities and nutritional aging: how food insecurity and financial hardship accelerate health decline in older adults.
    Frontiers in nutrition (Reytor-González et al.)Published Jun 8, 2026Checked Oct 14, 2026
    “As the global population ages, older age represents a major risk factor for chronic diseases, frailty, and disability, particularly in socially disadvantaged groups. While adequate nutrition is essential to healthy aging, approximately 28% of the global population experiences moderate or severe food insecurity, with older adults disproportionately affected in resource-limited settings. Food insecurity and financial hardship are consistently associated with poorer diet quality, including lower Healthy Eating Index scores (e.g., ~51 vs. >57 in food-secure peers), and increased risk of adverse outcomes such as sarcopenia, frailty, and cognitive decline. Notably, food-insecure older adults are also more likely to experience overweight or obesity (OR ≈ 1.29), reflecting reliance on energy-dense, nutrient-poor diets. These disparities are shaped by structural and socioeconomic factors, including low income, limited education, inadequate social safety nets, and inequitable neighborhood food environments. Addressing these challenges requires a shift from individual-level interventions to systemic, interdisciplinary, and culturally-tailored approaches.”

How it changed

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  • “The latest US picture: prices rising faster than expected” rests on one independent source

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Open questions

  • How is the current US inflation rate split across food, housing, energy and transport, and how does that split differ by income group and region?

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  • How much of the household squeeze comes from rent, mortgage costs and household energy, which the sources here do not quantify?

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  • To what extent are wage and benefit increases offsetting higher prices for US households, and for which groups?

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  • What do US-specific data show about food insecurity, dietary substitution and food-bank use as prices rise?

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  • Was the 2021–2022 surge transitory or persistent, and how much of it is attributed to price gouging rather than supply and demand factors?

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