The United Kingdom’s Retail Price Index (RPI) inflation picked up in March 2026, rising to 4.1% year-over-year, up from 3.6% in February 2026. The latest data, updated on 22 April 2026, marks a reversal of the previous easing trajectory in this broader measure of consumer price pressures.
On a year-over-year basis, the “actual” reading for March compares price changes with the same month a year earlier, while February’s “previous” figure similarly reflects the annual change versus February of the prior year. The move from 3.6% to 4.1% suggests that underlying price pressures, as captured by the RPI, have strengthened, potentially complicating the outlook for monetary policy and real household incomes.
Investors and policymakers will closely watch whether March’s uptick proves temporary or signals a more persistent re-acceleration in inflation, given RPI’s role in index-linked bonds, some wage agreements, and regulated price mechanisms across the UK economy.
