South Korea’s service sector output growth moderated in September 2026, with the month-over-month indicator easing to 0.5%, down from 0.7% in August 2026. The latest data, updated on 29 October 2026, signal a slight cooling in momentum after a stronger performance in the previous month.
Both readings are measured on a month-over-month basis, meaning September’s 0.5% increase reflects a comparison with August, while August’s 0.7% figure was measured against July. Although growth has slowed, the service sector continues to expand, suggesting that activity remains on an upward trajectory, albeit at a more restrained pace heading into the final quarter of the year.