March 2026 Syntec Index

The revised Syntec Index (base 100 in 1961) for March 2026 was published on April 30, 2026.

It stands at 321.7, up 1.58% year-on-year and down 0.37% month-on-month. After applying the linking coefficient, the adjusted index stands at 315.2.

Contents

Table of changes in the Syntec Index for March 2026

	March 2026 Syntec Index	February 2026 Syntec Index	March 2025 Syntec Index
Syntec Index value	321.7	322.9	316.7
Change in % from the base		Down 0.37%	Up 1.58%

March 2026 Syntec Index

The official source is the Syntec Federation (not INSEE).

The value for the month of March 2026 to be used for contracts signed before August 2022 (revised index after applying the linking coefficient) is: 315.2.

Our Syntec Index 2026 table has been updated here:

Revised Syntec Index corrected for the adjustment coefficient and monthly and annual percentage changes:

All revised and historical Syntec index values for 2026

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

Syntec IT,
Syntec Engineering,
Syntec Consulting Associations.

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

Official Syntec Index — The March 2026 Syntec Index was published on April 30, 2026

The French Ministry of the Economy and Finance has recognized the Syntec Index since March 11, 1974. It is updated and published monthly, generally at the end of the month, with a 1-month lag. The next index is expected to be published around May 29, 2026: the April 2026 Syntec Index.

For companies in the technology and services sector, the Syntec Index is an essential tool for maintaining fair contracts aligned with actual costs. It provides an objective basis for price reviews and helps protect against unforeseen cost variations.

Frequently Asked Questions (FAQ) on the Syntec Index of March 2026

What is the Syntec Index?

The Syntec Index is a French economic indicator primarily used to adjust contract prices for intellectual services, particularly in engineering, IT services, consulting, and research and development. It is used, in particular, to adjust service prices under long-term contracts to account for cost fluctuations.

What is the value of the Syntec index for March 2026?

The value of the Syntec Index for March 2026 is 321.7. It is up 1.58% year-on-year (compared with March 2025) and down 0.37% compared with February 2026. The revised index after applying the linking coefficient stands at 315.2.

How do you integrate the Syntec Index into a contract?

To integrate the Syntec Index into a contract, a price adjustment clause must be included that specifies that prices will be periodically adjusted based on changes in the Syntec Index. The adjustment frequency and the calculation formula must also be defined.

Can the Syntec Index decrease?

Yes, although rare, the Syntec Index can decrease if the costs of intellectual services decrease. This can occur when there are significant reductions in salaries, social charges, or operating costs for the relevant companies. It may decrease from one month to the next, but rarely in the annual trend.

Are there alternatives to the Syntec Index?

Economic indices, such as the Consumer Price Index (CPI) and the Producer Price Index (PPI), can be used to adjust contract prices. However, the Syntec Index is designed explicitly for intellectual services and is most relevant to this sector.

When is the Syntec Index published?

The Syntec Index is published monthly, usually at the end of each month, with a one-month lag.

Syntec Index History

Find all the values of the Syntec index since 2014:

Syntec Index History:

History of the Syntec index, a tool for measuring labor costs

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The Syntec Index for March 2026 has been published