Total Employment Cost and Employer Charges in Luxembourg
Hiring an employee costs more than their gross salary alone. The employer bears in addition a set of social security contributions paid to the Centre commun de la sécurité sociale (CCSS), totalling between 12% and 15% of gross salary depending on the sector. Some of these charges are fixed and identical for all companies; others are variable and depend on each employer's risk and absenteeism profile. This guide details each branch, its official rate and its basis of calculation, with a complete worked example on €4,000 gross.
1. The basic formula
Total employer cost = Gross salary + CCSS employer contributions
The gross salary is the remuneration agreed in the employment contract, which must be at least equal to the social minimum wage (SSM — salaire social minimum) according to the employee's qualification and age. Employer contributions are added on top: they are borne entirely by the employer and are not deducted from the employee's gross salary.
Separate from these are employee contributions, which the employer withholds from gross salary and pays to the CCSS on the employee's behalf. These reduce the employee's net salary but do not increase the cost to the employer — they simply pass through it.
2. The contribution base: floors, ceiling and special cases
General principle
The contribution base is the gross remuneration subject to contributions: base salary, bonuses, gratuities and assessable benefits in kind. Overtime pay is also subject to social contributions, although certain tax exemptions may apply to it.
Minimum contribution bases (as of 01.06.2026 — post-indexation)
The base may not fall below the applicable SSM for the employee's age, calculated on 173 monthly hours. For part-time workers, the floor is prorated.
| Category | Monthly floor (01.06.2026) |
|---|---|
| 18 and over, unqualified (SSM) | €2,771.33 |
| 17 to 18 years old (80% of SSM) | €2,217.06 |
| 15 to 17 years old (75% of SSM) | €2,078.50 |
Contribution ceiling (pension only)
A contribution ceiling applies to the pension branch only. Salary above this threshold is no longer subject to pension contributions.
Special case: the long-term care base
Long-term care insurance (assurance dépendance) follows its own rules: the floors and ceiling do not apply. Instead, an allowance of ¼ of the SSM is deducted from the base before the contribution is calculated. This allowance is prorated if the employee works fewer than 150 hours in the month.
As of 01.06.2026: allowance = €2,771.33 ÷ 4 = €692.83
3. Fixed employer contributions (CCSS rates as of 01.01.2026)
These rates are published by the CCSS in its annual employer notice. They are not affected by salary indexation — only the euro amounts of floors and ceilings change with the SSM.
| Branch | Employer share | Employee share | Contribution base |
|---|---|---|---|
| Health-maternity insurance | 2.80% | 2.80% | Gross salary (SSM floor) |
| Daily allowance supplement | 0.25% | 0.25% | Gross salary — if entitled to sick-leave daily allowance① |
| Pension insurance | 8.50% | 8.50% | Gross salary (SSM floor · ceiling €13,856.65) |
| Long-term care insurance | 0% | 1.40% | Gross salary − allowance €692.83② |
| Family benefits | 1.70% | 0% | Public sector only③ |
| Occupational health (STM) | 0.14% | 0% | Private sector STM members only④ |
① The daily allowance supplement applies to employees entitled to the sick-leave daily allowance — the vast majority of private-sector employees.
② The allowance is prorated if the employee works fewer than 150 hours in the month.
③ Family benefits (1.70%) apply only to public-sector employers — private employers are not subject to this contribution.
④ The occupational health contribution (0.14%) applies only to private employers affiliated with the multisectoral occupational health service (STM).
Fixed employer rate for the private sector
For a private-sector employer affiliated with the STM, the fixed charges amount to:
4. Variable employer contributions: accident and mutual fund
Two contribution items are specific to each employer and vary according to its profile. They are added to the 11.69% fixed rate.
Accident insurance — bonus-malus factor
Accident insurance is managed by the Association d'assurance accident (AAA). The base rate is 0.650%, adjusted by a bonus-malus factor communicated individually to each employer by the AAA based on its claims history.
| Bonus-malus factor | Effective accident rate |
|---|---|
| 0.85 (low claims) | 0.5525% |
| 1.00 (base rate) | 0.6500% |
| 1.10 | 0.7150% |
| 1.30 | 0.8450% |
| 1.50 (high claims) | 0.9750% |
Employers' mutual fund — absenteeism class
The employers' mutual fund (mutualité des employeurs) reimburses the employer for sick-pay costs beyond the statutory maintenance obligation. In return, the employer contributes at a rate that depends on the financial absenteeism class assigned to it by the CCSS.
| Class | Financial absenteeism rate | Employer contribution |
|---|---|---|
| Class 1 | Below 0.65% | 0.23% |
| Class 2 | Below 1.60% | 0.95% |
| Class 3 | Below 2.50% | 1.56% |
| Class 4 | 2.50% or above | 2.66% |
5. Worked example and total cost range
Assumption: employee on €4,000 gross, private sector
Parameters used: accident bonus-malus factor = 1.00 (base rate), mutual-fund class 2, employer affiliated with STM.
| Branch | Base | Rate | Amount |
|---|---|---|---|
| Employer contributions | |||
| Health-maternity insurance | €4,000 | 2.80% | €112.00 |
| Daily allowance supplement | €4,000 | 0.25% | €10.00 |
| Pension insurance | €4,000 | 8.50% | €340.00 |
| Accident insurance (factor 1.00) | €4,000 | 0.65% | €26.00 |
| Occupational health (STM) | €4,000 | 0.14% | €5.60 |
| Mutual fund (class 2) | €4,000 | 0.95% | €38.00 |
| Total employer contributions | 13.29% | €531.60 | |
| Employee contributions (withheld from gross salary) | |||
| Health-maternity insurance | €4,000 | 2.80% | €112.00 |
| Daily allowance supplement | €4,000 | 0.25% | €10.00 |
| Pension insurance | €4,000 | 8.50% | €340.00 |
| Long-term care insurance | €3,307.17* | 1.40% | €46.30 |
| Total employee contributions | €508.30 | ||
* Long-term care base = €4,000 − €692.83 (¼ SSM allowance) = €3,307.17
- Gross salary: €4,000.00
- Employer contributions: + €531.60 (13.29%)
- Total employer cost: €4,531.60
- Employee contributions withheld: − €508.30
- Net salary before withholding tax: €3,491.70
The employee's actual take-home pay is further reduced by income withholding tax (retenue à la source) calculated by the tax authority based on the employee's tax card — this is a tax deduction, not a social security contribution.
Total employer contribution range by company profile
| Scenario | Total employer rate | On €4,000 gross |
|---|---|---|
| Favourable — bonus-malus 0.85 · class 1 · no STM | 12.33% | €493.20 |
| Median — bonus-malus 1.00 · class 2 · STM | 13.29% | €531.60 |
| Degraded — bonus-malus 1.30 · class 3 · STM | 14.40% | €576.00 |
| Unfavourable — bonus-malus 1.50 · class 4 · STM | 15.34% | €613.60 |
A question about the employer cost for a specific situation?
Ask Kymora →The information in this guide is provided for informational purposes only and does not constitute legal advice. It may contain inaccuracies or may not reflect the latest legislative or case-law developments. For any specific situation, please consult a qualified legal professional.