Understanding Your Luxembourg Payslip
Mickaël LOC
Payroll Manager ·
Understanding Your Luxembourg Payslip
The Luxembourg payslip is a mandatory document that the employer must provide to the employee each month. It details gross compensation, social contributions (employee and employer share), income tax withholding and net salary paid. Understanding each line is essential to verifying the accuracy of one's compensation.
From gross to net salary
The calculation follows a precise sequence. From gross salary (base compensation + overtime + bonuses), employee social contributions are deducted: health (3.05%), pension (8.00%) and long-term care insurance (1.40%), or about 12.45% of capped gross. The result is taxable salary, to which the withholding tax (RTS) is applied based on the employee's tax class (1, 1a or 2) and any applicable tax credits (CIS, CIM, CISSM). The result is net salary before adding any expense reimbursements.
Mandatory items
- Pay period and number of hours worked
- Base salary, overtime with premiums and bonuses
- Detail of each social contribution (branch, rate, amount)
- Income tax withholding (class, rate, amount)
- Any benefits in kind valued (car, accommodation)
- Net salary payable and payment method
- Annual cumulative remuneration and contributions
Common errors to check
The most common errors on Luxembourg payslips include: an incorrect tax class (unreported change in family situation), omission of the skilled SSM premium, failure to apply overtime premiums (140% on working days, 170% on Sundays and public holidays), and omission of the employee tax credit (CIS). In case of error, the employee has a 3-year period to request a correction.
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