Why the same work weighs more on a small loan
A lender must assess an applicant, deliver the money, track repayments, and follow up when a payment is late. Much of that work takes roughly the same effort whether the loan is large or just enough to buy a basic tool. But the lender earns interest on the amount borrowed. With a smaller principal, the same administrative cost consumes a larger share of the revenue the loan can generate.
That mismatch is why a small loan can carry a high rate without producing a large amount of interest in dollars. The percentage has to reflect costs against a very small balance—and the lender may also need it to cover defaults, funding, and other operating expenses.
The rate is not the whole cost
For a borrower, what matters is the total amount and timing of repayments, not just the advertised rate. Fees, how often payments are due, and how quickly the balance falls can all affect the cost. A rate quoted for a short loan can also look especially high when expressed as an annual percentage, even if the borrower does not keep the money for a full year.
The tradeoff is real: charging enough to operate can make tiny loans available where ordinary lenders may not find them worthwhile, but the cost can still strain someone with little income or irregular cash flow. A small principal does not mean a small burden: even modest charges can take a meaningful share of the money a borrower has available to repay.
