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Commentary

1.2 How are filings done?

Luxembourg

From 1 January 2025, paper filing is replaced by mandatory electronic filing for withholding tax on wages and pensions, including directors' fees (Law 8388).

SECUline

SECUline is used by the employer to follow mandatory online payroll declarations. It requires employer registration (5.1) to obtain a password.

Once an employee is registered (5.2), the Joint Social Security Centre (Centre commun de la sécurité sociale CCSS: invoicing) calculate the contributions for each employee, following which the employer

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Web page updated on 17 Mar 2025 14:42