The index grid for category C structures the remuneration of nearly 45% of agents in the French public service. Administrative assistants, technical agents, healthcare auxiliaries: all depend on a system of steps and increased indices that determines their gross monthly salary. The index point, set at 4.92278 € in 2026, remains the calculation base for all these agents, but the salary reality proves to be more complex than this single figure suggests.
Steps below the SMIC: the compression that neutralizes the category C grid
The most structuring phenomenon for category C agents in 2026 is neither the freeze on the index point nor the amount of bonuses. It is the gradual compression of the grid by the SMIC.
In grade C1, 10 out of 11 steps fall below the SMIC. In C2, 7 out of 12. In C3, 3 out of 10. Therefore, almost the entire career in C1 takes place at the level of the legal minimum wage, regardless of the seniority accumulated by the agent.
To understand the category C index grid in the public service, one must measure this gap between theory (steps meant to reward seniority) and practice (an indexed salary caught up with, or even surpassed by, the SMIC). This compression produces a concrete effect: an agent at the 3rd step and an agent at the 9th step of C1 receive almost identical net pay.
Category C indexed treatment: comparative table by grade
The gross monthly indexed treatment is calculated by multiplying the increased index by the value of the index point. Here are the thresholds for each grade, before bonuses and allowances.
| Grade | Number of steps | Minimum increased index | Maximum increased index | Steps below the SMIC |
|---|---|---|---|---|
| C1 (basic assistant) | 11 | Step 1 | Step 11 | 10 out of 11 |
| C2 (intermediate assistant) | 12 | Step 1 | Step 12 | 7 out of 12 |
| C3 (advanced assistant) | 10 | Step 1 | Step 10 | 3 out of 10 |
The actual progression only begins to be felt from grade C3, where the majority of steps exceed the SMIC. In contrast, for grades C1 and C2, the index grid becomes largely theoretical: the differential allowance brings everyone back to the same minimum.
Differential allowance and retirement: a trap for category C agents
When an agent’s gross indexed treatment falls below the SMIC, a differential allowance is automatically paid to fill the gap. This mechanism ensures compliance with the legal minimum on the payslip.
The major limitation of this system lies in its exclusion from the calculation of the retirement pension. A category C agent may receive the SMIC for most of their career thanks to this allowance, but their pension will be calculated solely on the indexed treatment, which is below the SMIC.
The consequences are direct:
- A C1 agent at the 8th step contributes based on an increased index lower than the SMIC, while they effectively receive the SMIC thanks to the differential allowance
- The portion of remuneration covered by this allowance generates no pension rights, which mechanically reduces the amount of the retirement pension
- The longer an agent remains on steps below the SMIC, the greater the gap between their active salary and their future pension
This mechanism clearly distinguishes category C from categories A and B, where the indexed treatment exceeds the SMIC from the first steps.
Frozen index point: what real effect on net salary category C
The index point has been frozen for the third consecutive year at 4.92278 €. For categories A and B, this freeze results in a gradual erosion of purchasing power. For category C, the effect is different.
Since the majority of C1 and C2 steps are already caught up by the SMIC, the freeze on the index point has no direct impact on the net salary received by these agents: it is the annual revaluation of the SMIC that determines their actual remuneration. The index point only becomes a salary lever from the higher steps of grade C3.
Conversely, the freeze does affect the calculation base for bonuses indexed to the indexed treatment. Salary supplements like RIFSEEP (compensation scheme considering functions, responsibilities, expertise, and professional commitment) are partially based on the index. A frozen index point also slows down the progression of bonuses, even when the base net salary follows the SMIC.
Bonuses and RIFSEEP: what varies real salary in category C
The indexed treatment represents only a part of the total remuneration. The RIFSEEP, generalized across the three branches of the public service, adds two components:
- IFSE (allowance for functions, responsibilities, and expertise), paid monthly and linked to the position held
- CIA (annual supplementary allowance), linked to performance, paid once or twice a year
- Specific allowances depending on the branch: NBI (new indexed bonus) for certain functions, residence allowances varying by geographical area
The amount of these bonuses varies significantly from one community to another and from one ministry to another. Two C2 administrative assistants at the same step can receive very different net salaries depending on their employer and their place of assignment.
The General Inspectorate of Finances has pointed out the growing weight of bonuses in the remuneration of state agents. For category C agents, the bonuses partially compensate for the compression of the indexed grid, but unevenly depending on the branches and territories.
The category C indexed grid now functions more as a floor rather than a true tool for salary progression. The gap between the theoretical gross treatment and the actual net remuneration depends more on the SMIC, bonuses, and the employer than on the step held by the agent.