How to Read France CPI Year on Year, the INSEE Inflation Gauge

France CPI is the measure of inflation published by INSEE, the national statistics office. The August reading was 2.4% year over year, and INSEE describes the index in its own words: “L'indice des prix à la consommation (IPC) est l'instrument de mesure de l'inflation.” [The consumer price index (CPI) is the instrument used to measure inflation] (B-NKER translation).

Who publishes it, when

INSEE, the French national statistics institute, publishes the index and defines its purpose this way: “Il permet d'estimer, entre deux périodes données, la variation moyenne des prix des produits consommés par les ménages.” [It makes it possible to estimate, between two given periods, the average change in the prices of products consumed by households] (B-NKER translation). You can follow each release on the France inflation, final page.

The latest final release came out on Wednesday, Sept. 30, 2026, and it covered August 2026. The next release is due on Thursday, Oct. 15, 2026, 2:45 a.m. ET (6:45 GMT), so put it on your economic calendar ahead of time. INSEE sets the schedule for each release.

How to read it

Start with the oldest reading in the run. In June 2026, French CPI stood at 1.8% year over year, with a preliminary status. That figure is the base against which the next two months are compared.

In July 2026, the rate rose to 2.1% from 1.8% in the prior month. The move was small, and it was still preliminary. The reading compares prices with the same month a year earlier, not with the month before.

In August 2026, the rate edged up to 2.4% from 2.1% in July. The status was preliminary, so a later release could differ. Together the three prints show a gradual climb rather than a sudden jump.

What moves markets

Because the index tracks the average price change of what households buy, broad moves in consumer prices can lift or lower the yearly rate. If the rate keeps climbing, euro rates and the euro could be exposed to a repricing of the ECB's path. A softer print would test the same instruments in the other direction.

The release on Thursday, Oct. 15, 2026, 2:45 a.m. ET (6:45 GMT) is the next test of the recent trend. A reading above 2.4% would extend the climb, while a reading below it would interrupt it. Euro area yields and European indices are the instruments most exposed on that date.

Common reading mistakes

• Mixing up year over year and month on month. The 2.4% figure compares August with the same month a year earlier, not with July, so it does not describe one month of price moves.
• Treating one print as a trend. The path from 1.8% to 2.1% to 2.4% says more than any single month, so always read the latest figure against the earlier ones.
• Ignoring small moves. The rise from 2.1% to 2.4% was small, and a small change can reflect rounding or base effects rather than a new price pressure on households.
• Overlooking the status. These readings were preliminary, so a later release can change them, and you should check the status before you compare one month with another.

What does France CPI measure?

It measures the average change in the prices of products households consume. INSEE publishes it and presents it as its gauge of inflation.

What was the latest France CPI reading?

The August reading was 2.4% year over year, up from 2.1% in July. INSEE published it on Wednesday, Sept. 30, 2026.

When is the next France CPI release?

INSEE's next release is on Thursday, Oct. 15, 2026, 2:45 a.m. ET (6:45 GMT). News traders can check prop firm news rules before that time.