Syntec 2022 Index – all values from 2014 to 2022

The Syntec Index measures changes in the cost of services in the engineering, IT services, research, consulting, recruitment, and professional training sectors.

Its value reflects the evolution of salary costs (including charges). The Syntec Index is used in particular to index contracts for fixed-price projects, IT management, or software maintenance.

The Syntec Index (base 100 1961) is calculated and published by the Syntec Federation (not INSEE) or by paying services such as “Le moniteur“.

Official Syntec 2022 Index
Release dates of the Syntec 2022 Index

Syntec index 2022

Month & YearDate of publication (or expected date of publication)Revised Syntec IndexChange over 12 consecutive months in the revised indexChange / previous month of the revised indexOld Syntec indexValue to be used for contracts signed before August 2022 (revised index adjusted for the connection coefficient)Change over 12 consecutive months of the old Syntec indexVariation / previous month of the old Syntec index
December 202231/01/2023292.64.24%0.93%286.703.39%0.95%
November 202230/12/2022289.93.42%0.17%284.002.56%0.18%
October 202230/11/2022289.43.36%0.77%283.502.46%0.75%
September 202231/10/2022287.22.57%0.28%281.401.77%0.29%
August 202230/09/2022286.42.36%0.21%280.601.48%0.07%
July 202231/08/2022285.82.33%0.39%280.4 1.67%0.14%
June 202229/07/2022284.72.37%0.04%280.0 1.56%0.00%
May 202230/06/2022284.62.71%0.28%280.0 1.71%0.07%
April 202231/05/2022283.82.49%-0.28%279.8 1.71%-0.04%
March 202229/04/2022284.63.15%0.64%279.9 1.93%0.61%
February 202231/03/2022282.82.24%0.35%278.2 1.13%0.25%
January 202228/02/2022281.82.14%0.39%277.5 0.91%0.07%
Syntec index 2022

How to use the SYNTEC index?


The prices of the service contract may be revised at each contract expiration date according to a formula that integrates the evolution of the Syntec index. The reference index used will be that of November (example).

The formula for applying the Syntec 2022 index:

[New Price (P1)] = [Old Price (P0)] X [Known Reference Syntec Index (S1)] / [Reference Syntec Index (S0)] :

How to apply the Syntec index to a price revision?
Syntec Index Price Revision Formula

To help you, you can use our table in Excel: Price increase 2022 – Syntec index.


For price revisions on the first of January of each year, it is advisable for practical reasons to take the November or October Syntec index as a baseline. Indeed, the December index is only known at the end of the following January, which is late for the application of contractual price increases.

The values in this table will be updated as the index is published during the year 2022.

Originally posted 2022-01-22 00:15:52.

Latest posts by Pascal (see all)

Leave a Comment


Practical pages, legal and administrative tools such as an expense report template, a sample non-disclosure agreement (NDA), the main economic and banking indexes with Cnaps Codes or Swift Codes, and many models of letters like hotel room reservations and certificates are downloaded for free.

Contact and social networks
Most popular articles

How to pay the annual tax of a company in Delaware?

Model certificate of refusal of vaccination

Syntec 2022 Index

Template hotel room reservation letter