It sounds backward. Yet in country after country, researchers keep finding the same pattern: people with the least money often pay the most, per unit, for the same basic things everyone needs. Water, credit, food, electricity, even a place to cash a paycheck can cost a low-income household more than it costs a wealthier one living a few streets away.
This isn’t a slogan. It has a name in research literature: the “poverty premium,” sometimes called the “poverty penalty” or, informally, “the poor pay more” [1]. Below is what has actually been documented, with sources, alongside a few widely shared claims that deserve a closer look before you repeat them.
The basic mechanism: why costs stack up
Three forces repeat across very different countries and contexts.
Lack of upfront cash forces smaller, pricier purchases. A person who can’t pay a large sum at once ends up paying in small, expensive instalments instead, whether that’s buying a day’s worth of water, a single meal’s worth of rice, or a week of prepaid electricity.
Exclusion from mainstream systems pushes people toward informal or subprime alternatives. Without a bank account, a credit history, or a fixed address, the cheapest formal options are often unavailable, leaving costlier informal substitutes as the only choice.
Being geographically or socially isolated removes bargaining power and competition. Neighbourhoods without supermarkets, competing water utilities, or bank branches leave residents dependent on whichever supplier shows up, at whatever price that supplier sets.
Water: the clearest example, especially in fast-growing cities
In parts of urban Africa and Asia, this is not an abstract idea. In Nairobi’s informal settlements, residents without a piped connection often buy water from vendors at prices far above what better-off households pay through the municipal network [2][3]. One World Bank-cited estimate put the cost of a 20-litre jerry can from an informal vendor in Nairobi’s Mukuru area at up to 50 Kenyan shillings, compared with a fraction of a shilling once low-cost, prepaid water dispensers were installed [3]. Researchers studying Nairobi’s Mathare settlement found that, despite the high price and inconsistent quality, residents kept buying from vendors because getting a legal household connection required an upfront fee of roughly $25 to $150, an amount well beyond reach for households living on about $3 a day [4].
This pattern isn’t unique to Kenya. It shows up wherever formal utility infrastructure hasn’t reached low-income or informally built neighbourhoods, across South Asia, Southeast Asia, and Latin America, for the same structural reason: no legal connection means falling back on middlemen who charge for the risk, effort, and scarcity they’re covering.
Credit: the most expensive money is lent to people who have the least of it
This is where the premium is largest and best documented.
In the United States, payday loans, a common short-term credit option for people who can’t get a bank loan or credit card, carry an average annual percentage rate (APR) of close to 400%, according to Pew Charitable Trusts data widely cited by the Consumer Financial Protection Bureau [5]. A typical $375 payday loan costs about $56 in fees for a two-week term, which annualises to roughly that same 400% rate [5]. Compare that with typical credit card APRs of 12 to 30% for those who qualify [5].
In India, government and central bank data show that traditional village moneylenders, who remain the source of roughly a fifth to a third of rural household debt, charge annual interest rates typically between 12% and 150%, compared with 6% to 20% at formal banks [6]. A separate long-running study found the rural and urban poor paying an average of 60% or more per year to informal lenders [7].
In Bangladesh, researchers studying rural lending found that traditional lenders known as mohajons charge average interest of around 145% a year, and that borrowers keep using them for urgent needs like medical emergencies even where microfinance institutions are present [8].
In wealthier countries, being unbanked has its own price tag. The US Federal Deposit Insurance Corporation’s 2023 survey found 4.2% of American households, about 5.6 million, had no bank account at all, with rates far higher among single-parent households (12.3%) [9]. Without an account, cashing a paycheck at a check-cashing outlet can cost up to 10% of the check’s value, and using money orders or prepaid cards to pay bills adds further fees that banked households simply don’t pay [9][10].
The good news: this gap is narrowing globally. The World Bank’s 2025 Global Findex report found that nearly 80% of adults worldwide now have a financial account, up from 50% in 2011, with mobile money driving much of the progress in low- and middle-income countries [11]. Still, an estimated 1.3 billion adults remain outside the formal financial system [11].
Food: paying more for less choice
In neighbourhoods without a nearby supermarket, often called “food deserts,” residents typically rely on small convenience or corner stores. US Department of Agriculture researchers found these stores frequently charge more for the same staple items than large supermarkets do, partly because small stores lack the purchasing power to negotiate bulk discounts [12]. A national analysis of milk prices, for example, found significantly lower prices at supermarkets than at limited-service stores [13]. One frequently cited estimate put convenience-store markups at around 11% above supermarket prices for comparable goods [14].
The pattern holds outside the US too, wherever poorer households lack transport or time to travel to lower-priced markets, and end up buying smaller, more expensive portions from whichever shop is within walking distance.
Utilities and insurance: paying to be poor, literally
Research from the University of Bristol, commissioned by the UK charity Fair By Design, calculated in detail how much more low-income households pay each year for the same essential services as everyone else, including prepayment energy meters, higher-cost credit, and higher insurance premiums tied to living in higher-risk postcodes [1][15]. The overall figure came to an estimated £490 a year on average in 2016, with some households paying between £350 and £750 [15]. Individual components included around £38 a year extra for using a prepayment meter instead of direct debit, and £84 a year extra in insurance premiums linked to area of residence [15]. A related 2024 academic study confirmed that energy poverty premiums persist in longitudinal UK household data [1].
While the exact pound or dollar figures are country-specific, the underlying mechanism – paying more for the “convenience” or “necessity” version of a service because the cheaper version requires paperwork, credit checks, or upfront deposits – repeats in electricity, mobile airtime, and even funeral and burial cover across many countries.
The “boots theory”: a useful idea, not a proven law
You may have come across the “boots theory” of poverty, popularised from a passage in Terry Pratchett’s 1993 novel Men at Arms. In it, a poor character reasons that spending $10 repeatedly on boots that wear out in a season costs more over ten years than spending $50 once on boots that last a decade, meaning the poor effectively pay more in the long run for lower-quality goods [16].
This is a literary illustration, not a peer-reviewed economic finding, and it’s worth being clear about that distinction. It captures something real: UK government statistics found that in 2022, food and energy price inflation hit lower-income households harder (11.9%) than higher-income households (10.5%), largely because essentials make up a bigger share of tight budgets [16]. But some economists and commentators have pushed back on the theory itself, arguing that the higher hidden cost for people in poverty isn’t the price difference between cheap and durable goods, it’s the time, effort, and lack of slack needed to shop around, save up, or wait for a better deal in the first place [17]. Treat the boots theory as a helpful way to think about the problem, not a documented multiplier you can apply to any purchase.
Common myths worth separating from the facts
Myth: poor people pay more for everything, everywhere, by a fixed multiple. Not verified. Some well-controlled US studies have actually found food prices in low-income neighbourhoods are not consistently higher once you control for store type and location, complicating the simple “food is always pricier for the poor” claim [13]. The premium is real but uneven; it depends heavily on the product, the country, and whether formal alternatives exist nearby.
Myth: this is only a developing-world problem. Not accurate. The UK and US data above show the poverty premium is well documented in wealthy countries too, through prepayment meters, insurance pricing, and payday lending [1][5][15].
Documented and verified: informal credit is dramatically more expensive than formal credit almost everywhere it has been studied, from Kenyan water vendor “financing” arrangements to Indian moneylenders to American payday loans [5][6][7][8].
Documented and verified: financial inclusion (having a bank or mobile money account) measurably reduces exposure to these extra costs, which is why global institutions treat expanding account ownership as a poverty-reduction tool, not just a banking metric [11].
A quick comparison
| Cost area | What the better-off household typically pays | What the low-income household often pays instead | Source |
|---|---|---|---|
| Short-term credit | Credit card, roughly 12 to 30% APR | Payday loan, roughly 400% APR | [5] |
| Water (informal settlement vs formal connection) | Municipal rate via household connection | Vendor price, several times higher per litre | [2][3][4] |
| Rural credit (India) | Bank loan, 6 to 20% annual interest | Moneylender, 12 to 150% annual interest | [6] |
| Energy payment | Direct debit tariff | Prepayment meter, roughly £38/year more (UK) | [15] |
| Groceries | Supermarket prices | Convenience store, roughly 11% markup (US) | [14] |
| Cashing a paycheck | Free, via a bank account | Check-cashing outlet, up to 10% of check value | [9][10] |
What actually helps
The research points to a consistent set of fixes, none of them exotic:
- Expanding access to basic, low-fee bank or mobile money accounts, which the Global Findex data links directly to falling reliance on costly informal alternatives [11]
- Extending formal utility connections into informal settlements, which sharply cuts water costs where it has been tried [3]
- Regulating or capping the interest rates on small, short-term credit, an approach some US states and the UK have already taken with payday and prepayment products [5][15]
- Bringing full-service, competitively priced grocery options into underserved neighbourhoods, which research shows narrows the retail price gap [12]
None of these are quick fixes, and none work everywhere the same way. But together, they explain why “the poor pay more” is not a fixed law of economics. It’s a description of gaps in infrastructure, regulation, and access, and those gaps can close.
This article draws on publicly available research, government data, and academic studies current as of 2025 to 2026. Figures such as interest rates, fees, and premiums vary by country and change over time, so treat specific numbers as illustrative rather than current-day guarantees. If you spot an error or outdated figure, or you know of more recent data on this topic, feel free to reach out with corrections.
- References
- [1] Energy inefficiency as a ‘poverty premium’, ScienceDirect
- [2] Nairobi’s water supply: 2 claims about losses and high prices in slums evaluated, Africa Check
- [3] These vending machines are bringing safe, cheap water to Nairobi slums, World Economic Forum
- [4] Why Kenya’s urban poor are exploited by informal water markets, The Conversation
- [5] Payday loans face tough rule changes from CFPB, Debt.org
- [6] Financiers in the informal moneylending market study, World Bank Policy Research Working Paper
- [7] Predatory lending: is it worth your interest?, Sattva Insights
- [8] Microfinance presence lowers rural interest rates, The Daily Star
- [9] 2023 FDIC National Survey of Unbanked and Underbanked Households, FDIC
- [10] FDIC survey: unbanked households hit record low, Bankrate
- [11] Mobile-phone technology powers saving surge in developing economies, World Bank
- [12] Access to affordable, nutritious food is limited in food deserts, USDA Economic Research Service
- [13] Comparing prices between small and non-traditional food stores and supermarkets, PMC/National Institutes of Health
- [14] 5 things you probably didn’t know about living in a food desert, Civil Eats
- [15] The ‘poverty premium’ pushing the just about managing to the edge, PressReader/The Independent
- [16] Boots theory, Wikipedia
- [17] Debunking the Vimes boots theory: uncovering economic myths, Stewart Hotston
