The essentials to remember: the December adjustment will remain minimal, bringing about 5 to 10 euros gross for a pension of 1 100 euros. Your vigilance must target the January 2026 payment, when the CSG update directly impact your net. Anticipate this recalculation based on your income, as social contributions can now reach 10.1% of the gross amount.
With a pension of 1,100 €, you legitimately wonder if the revalorisation of your retirement will be sufficient to compensate inflation or if your purchasing power will erode. The actual amount credited to your account in December depends not only on the rate of increase, but also on strict tax rules that change the situation. This analysis precisely figure your potential gain and outlines the new CSG thresholds that will directly impact your net pension.
Upgrading 2025: A limited gain on your December pension
Every fall, trade unions and employers meet to set the rate of revalorisation of your supplementary pension. This major decision shall apply officially from 1 November of each year. The theoretical objective of this manoeuvre is to compensate inflation to preserve your purchasing power.
For 2025, the final verdict will be reached at the strategic meeting scheduled for October 17, 2025. Since the November transfer has already been closed by that date, you will find the actual effect on early December 2025 payment.
Note that this is a increase in gross pension, prior to the levying of social security contributions.
The annual mechanism of the increase Agrec-Arrco
Concrete calculation: what impact for 1,100 € Pension?
The first analyses anticipate a revalorisation retraitement actic arco 2025 between 0.5% and 0.9%. This rate will depend strictly on observed non-smoking inflation and possible technical adjustments. Nothing is guaranteed yet.
Take your pension of 1,100 € : with 0.5%, gross gain reaches 5.50 €. If the rate rises to 0.9%, you will receive 9,90 € Each month. Your gross monthly payment would then oscillate between 1 105.50 € and 1 109,90 €.
This boost remains modest. It barely covers a small unforeseen expenditure of the daily.
The real stake of 2026: the impact of the csg on your net
But this small increase at the end of the year must not hide the essential. The real change for your portfolio will happen early 2026, and it could be much less favorable.
Why your net pension will be recalculated early 2026
The net amount of your retirement is not fixed. Every year, Agirc-Arrco recalculate your social contributions. This recalculation will be visible as of January 2, 2026.
This revision is based on your reference tax income (RFR) for year N-2. For 2026, it is therefore your 2024 RFR (Tax Notice 2025) that will serve as a reference.
It is this mechanism, detailed in our analysis on the evolution of your pension Agrec-Arrco in 2026, which determine if your net pension increases or decreases.
The levies on your supplementary pension
Your gross pension is subject to several mandatory deductions. The total of these levies may reach up to 10.1% the gross amount, directly affecting your purchasing power.
These are the taxes levied at source. Note that the change in your net depends mainly on the CSG rate.
- Generalised Social Contribution (CSG) The rate varies (3.8%, 6.6% or 8.3%).
- Contribution to the Repayment of Social Debt (CRDS): 0.5 per cent.
- Solidarity for Self-Government Contribution (CASA) 0.3% (except for CSG 3.8%).
- Health insurance contribution 1 % (for CSG rates of 8.3% and 6.6%).
Csg 2026: the thresholds that determine your net pension
New reference tax income thresholds
The rate applied depends only on your 2024 benchmark tax income and your number of shares. This is the rule for your future retirement actc arrco 2025.
| CSG rate applied | Threshold of RFR 2024 | Total levies |
|---|---|---|
| Exemption: | Less than 13,048 € | 0% |
| Reduced rate (3.8%) | Between 13,048 € and 17,056 € | 4.3 % (CSG + CRDS) |
| Median rate (6.6%) | Between 17,057 € and 26,471 € | 8.4 % (CSG + CRDS + CASA + Sickness) |
| Normal rate (8.3%) | Over 26,472 € | 10.1 % (CSG + CRDS + CASA + Sickness) |
Three scenarios for a pension of 1,100 €
Based on your 2024 benchmark tax income, three concrete situations await your net pension. It all depends on your positioning against the thresholds.
If your tax income changes to a higher rate, your net pension will decrease mechanically. If you stay in the same band, the amount will be stable. However, moving to a lower rate will increase your pension immediately.
- Increase in CSG: decrease in net pension.
- Stability of CSG: almost unchanged net pension.
- Lower CSG: increase in net pension.
Anticipate changes and avoid bad surprises
Faced with these mechanisms, Anticipation is your best ally. Here are some points of vigilance not to be caught off guard in January 2026.
The smoothing mechanism for rate changes
Rest assured, a specific device exists for block the gross threshold effects. The change from a reduced CSG rate of 3.8% to a higher rate is never automatic. The tax administration thus avoids penalising a one-off increase in income.
The rule is simple but strict: your tax income must exceed the threshold two consecutive years in order to the higher rate applies. This is an essential protection for fluctuating incomes.
Check your 2024 and 2025 tax notices now. You'll know. What to expect.
When will you see the difference in your accounts?
Note this specific deadline in your personal calendar. For the Agrec-Arrco 2025 retirement, the new net amount will be visible on 2 January 2026. This is the first payment directly affected by this calculation. You will be fixed immediately.
The schedule is different for your basic retirement. The Carsat/Cnav will apply this CSG change with a full month of lag. The change will appear only on the February 2026 payment.
This is the basis for sound financial management Your budget. Anticipate always.
Although the December revalorisation offers a slight gross gain, the real impact on your budget will depend mainly on social levies. It is in fact the recalculation of your CSG rate, effective January 2026, which will determine whether your net pension increases or decreases. So carefully monitor your tax thresholds for anticipating this deadline.
