Social Security & Cross-Border Rights
Contribution base
The base is the calculation basis for social contributions. Professional income, minimum, and maximum: understand a CCSS call.
Lexicon
Social Security & Cross-Border Rights
Provisional contributions of the self-employed
The provisional contributions of the self-employed are calculated before their definitive professional income is known. In Luxembourg, the CCSS initially uses an estimate or a reference base, then the latest available income.
An updated estimate can be communicated when the activity evolves. The income transmitted by the tax administration then leads to the final calculation. A regular deduction does not guarantee the absence of adjustment.
To understand a variation, compare the account statement with the declared income and the details of the adjustment. Adapting the provisional base allows aligning payments with the actual economic situation.
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Other Associated Definitions
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Social Security & Cross-Border Rights
Professional income of the self-employed
Professional income is involved in the contributions of the self-employed. Nature of income and managerial functions specify the social base.
Social Security & Cross-Border Rights
Affiliation of the self-employed worker to the CCSS
Affiliation of the self-employed to the CCSS: declaration deadline, form, and manager status. Understand the procedures in Luxembourg.
Social Security & Cross-Border Rights
Voluntary membership in the Employers' Mutual Insurance
Voluntary membership in the MDE covers, under conditions, a loss of income for the self-employed. Effective dates and coverage in Luxembourg.