South Korea’s consumer price index (CPI) increased by 2.8% year-on-year in July 2026, marking the slowest rise in three months and down from 3.2% in June, according to official data released on August 4 [1, 2, 3, 4]. This followed a 25 basis-point increase in the Bank of Korea’s benchmark interest rate to 2.75% at the end of July, its first hike since January 2023 [1].
Core inflation, which excludes volatile food and energy costs, edged up slightly from 2.5% in June to 2.6% in July, signaling persistent underlying price pressures [1, 4]. Despite the headline slowdown, the Bank of Korea warned that core inflation remains elevated due to ongoing cost shocks and strengthening demand-side pressures. The central bank said government price stabilization efforts helped ease fuel and agricultural product inflation in July but noted core inflation is expected to remain persistently high [1].
Headline inflation’s easing partly reflected a 5.5% monthly decline in petroleum product prices, offsetting year-on-year diesel and gasoline price increases of 21.5% and 12.6%, respectively. Those rises were driven by geopolitical tensions in the Middle East, which continue to weigh on fuel costs [2, 3, 4]. The Bank of Korea emphasized it will closely monitor inflation amid uncertainty from the Middle East conflict and continuing base effects [4].
Economist Jemin Choi at Hyundai Motor Securities said, "While markets would welcome softer core inflation, that’s not yet happening. With geopolitical uncertainty lingering, the BOK’s policy stance is unlikely to shift materially" [1]. The central bank governor, Shin Hyun Song, noted inflation is expected to stay above the 2% target for some time and that future rate decisions will depend on inflation trends, economic growth, and financial stability [1].
The Bank of Korea expects August inflation to possibly rise due to last year’s mobile communication fee base effect and ongoing price pressures, signaling no immediate easing in cost pressures in the near term [4].
