Why Some Countries Pay So Much More to Borrow Money

When a country's central bank sets its main interest rate, it isn't just tweaking mortgages and savings accounts — it's setting the price of borrowing for the whole economy, from government bonds to business loans. A high rate usually means a central bank is fighting fires: runaway inflation, a collapsing currency, or a debt crisis that's spooked lenders. A near-zero rate usually means the opposite — prices are stable, and the economy doesn't need to be reined in. This ranking, based on official policy rates from Trading Economics, spans an extraordinary range: from 0.00% in Switzerland to over 59% at the very top, a gap that says a lot about how differently economies around the world are being managed right now.

The world's most expensive borrowers

Most of the countries with punishing borrowing costs are dealing with inflation that's spiralled out of control. Zimbabwe (30%), Lebanon (25%) and Iran (23%) all sit near the top for the same basic reason: their currencies have lost credibility, and high rates are one of the few tools left to slow the bleeding. Malawi's 24% rate tells a similar story, weighed down by heavy debt and a severe currency crisis. Türkiye is a more unusual case — its 37% rate is the tail end of years of unorthodox rate-cutting under President Erdoğan, which fuelled runaway inflation and forced a sharp reversal.

Argentina offers a rare bright spot on this list. Its rate has fallen to 29% from a staggering 133% in late 2023, as President Javier Milei's rate-cutting campaign has taken hold — still painfully high, but a dramatic retreat. Nigeria's 26.50% rate reflects the opposite path: an aggressive 875 basis point hike in 2024 aimed squarely at taming inflation, even as it drove borrowing costs sharply higher.

A cautious thaw across Africa

Africa dominates the upper half of this ranking, but the regional picture is turning. Nearly 60% of Sub-Saharan African countries saw inflation slow in 2025, giving several central banks room to start easing rather than tightening. Ghana is the standout example: it slashed its policy rate from 27% to 18% during 2025, the most decisive rate-cutting move anywhere on the continent that year. It's a reminder that many of the countries at the top of this list aren't necessarily stuck there — high rates are often a response to a specific crisis, and they can come down quickly once inflation cools.

Where money is cheapest — and the outlier at the very top

At the bottom of the table, rates are barely above zero. Singapore (0.88%), Cambodia (0.46%), Belarus and Fiji (both 0.25%) all reflect low, stable inflation and economies that simply don't need the brakes applied. Switzerland sits at rock bottom with a 0.00% rate, cut in June 2025 after consumer prices actually fell — the Swiss National Bank had no inflation left to fight. For comparison, even Japan, long famous for near-zero rates, has been tightening: its rate climbed to 1.00% during 2025 before easing slightly to 0.75% by December, the fastest pace of rate rises in modern Japanese history.

But nothing in this ranking comes close to Venezuela, which tops the world at 59.12%. That figure is a direct response to inflation running at roughly 475% — the highest of any country on Earth. It's an extreme case, but it illustrates the whole point of this ranking: interest rates are less a policy choice and more a mirror, reflecting just how much trust — or distrust — the world has in a country's money.

Data from Trading Economics, 2025–2026.