Syntec index for December 2021 published

The Syntec index (base 100 in 1961) for December 2021 was published on January 31, 2022.

The value of the Syntec index for December 2021 is 277.3 for 275.0 in December 2020, an annual increase of + 0.84 % over 12 sliding months. The December index is up to 0,12 % from the previous month (276.9 in November 2021).

Table of changes in the Syntec index for December 2021


December 2021 Syntec Index

November 2021 Syntec Index

December 2020 Syntec Index

Syntec index value




Change in % from the base

Up 0.14 %

Up 0.84 %

Official source: Syntec Federation (not INSEE).

Official Syntec Index
Publication on January 31, 2022, of the Syntec index for December

Our Syntec Index 2021 table has been updated here: Syntec Index 2021.

The Syntec index reflects the evolution of salary costs (mainly intellectual services) of companies in the professional branches of the Syntec Federation:

  • Syntec Informatique“,
  • Syntec Ingénierie“,
  • Groupement Syntec des Syndicats d’Études et de Conseil“.

It is mainly used to update the financial clauses of engineering, contracted personnel, maintenance, and IT contracts. Its value is calculated each month based on a survey of representative companies.

The Ministry of the Economic and Finance in France has recognized the Syntec index since November 11, 1974.

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