Poland’s consumer price index (CPI) remained unchanged on a month‑on‑month basis in May 2026, with the indicator holding at -0.3%. According to data updated on 15 June 2026, the May reading matches the previous month’s change, signaling a continuation rather than an escalation or easing of short‑term deflationary pressure.
The comparison is made on a month‑over‑month basis, meaning the current figure reflects the change in prices from April to May, while the previous indicator captured the change from March to April. With both periods showing a -0.3% decline, the data suggest a stable, albeit negative, inflation dynamic over the latest two months, which will likely be closely watched by policymakers and market participants assessing the trajectory of prices in Poland.