waituntil

Luxembourg tax & financial deadlines

AED, ACD and CCSS obligations: VAT, corporate tax, wage tax withholding and social security.

This information is provided for general planning and reference only. Tax obligations and deadlines can depend on taxpayer status, fiscal year, reporting period and other circumstances. Dates shown on Wait Until are indicative only and may be subject to change, extensions or jurisdiction-specific rules. Wait Until, its parents, subsidiaries and affiliates do not accept responsibility for any loss, penalty, interest, filing failure or other consequence arising from reliance on the information or any error or omission in the deadlines shown. Final confirmation of all applicable deadlines must be obtained from the relevant tax authority or a qualified tax adviser.

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Upcoming deadlines

Depends on your own dates or a set rule

These follow your financial year, reporting period, payment date or a business-day rule, so no single calendar date is shown.

  • Social security contributions (CCSS)

    Pay

    Within 10 days after the CCSS account statement (extrait de compte) is issued.

    Pay the balance shown on the CCSS account statement within 10 days of its issue.

    Applies to: Private-sector employers

    Authority: Centre commun de la sécurité sociale (CCSS)CCSS — Facturation (employeurs, secteur privé)Last checked Wednesday 7 October 2026