Inflation in September 3.3 Percent in Quick Estimate

Short-term Price Developments

In the quick estimate, consumer prices decreased by 0.1 percent in September compared to August. A note when comparing two different months in the year is that one must take into account the influence of the season. For example, plane tickets are more expensive in holiday months than in other months. Prices are temporarily higher, but this is not a structural price increase.

Price Development of Product Groups

In the quick estimate, the price development of several product groups is also known. These are aggregations of spending categories on a specific theme, such as all services. On October 7, the price development of all categories in the CPI will be published.

August 2025

Quick Estimate HICP

CBS publishes two different figures for inflation. One based on the consumer price index (CPI) and one based on the European Harmonized Consumer Price Index (HICP). The quick estimate of inflation in the Netherlands according to the HICP was 3.0 percent in September. In August, inflation according to the HICP was 2.4 percent.

The main difference between the CPI and the HICP for the Netherlands is that the HICP does not take into account the costs of owning ones own home. In the CPI, these costs are calculated based on the development of rents. There are also other differences, which are explained in Differences between Consumer Price Figures.

Announcement: New Base Year CPI Starting 2026

Starting in 2026, the CPI and the HICP will transition to a new base year, from 2015=100 to 2025=100. Previously published inflation figures will not be revised. During the transition, an update of the classification of goods and services will also be implemented, which better aligns with changed consumption patterns. Furthermore, the CPI from 2026 will align more closely with the HICP. The first results according to the new series with reference year 2025 will be published in early February 2026. More information can be found in the method document The Consumer Price Index from 2026.

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Source last updated: 1 October 25

Published on Openrijk: 1 October 25

Source: Centraal Bureau voor de Statistiek