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National Fund for Salaried Workers' Social Security (CNAS), Complete Guide

The National Social Insurance Fund for Salaried Workers (CNAS) manages the social security of salaried workers in Algeria, covering the risks of sickness, maternity, invalidity and death.

Content verified on July 31, 2026Our methodology
By, Experts affiliation CNAS & conformité RH
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Responsibilities of the CNAS

  • Affiliation of employers and registration of employees.
  • Collection of social security contributions.
  • Issuing the Chifa card.
  • Managing reimbursements and social benefits.
  • Auditing declarations.

Affiliation file (employer)

  • Copy of the trade register (RC).
  • Copy of the company's articles of association (minutes).
  • Copy of the tax identification card (NIF).
  • Copy of the lease contract or title deed.
  • Copy of the manager's identity document.
  • Declaration of existence form (supplied by the CNAS).
  • Bank certificate or copy of a crossed cheque (bank details).

Registration file (employee)

  • Copy of the identity document.
  • Birth certificate (form 12).
  • Certificate of residence.
  • 2 passport photographs.
  • Family record sheet (if married).
  • Copy of the diploma or certificate of educational level.
  • Registration application form (SE 3500).

Contributions and penalties

The overall social security contribution rate is 34.5 % of the gross salary, split into 25 % payable by the employer, 9 % payable by the employee and 0.5 % for the works council levy (œuvres sociales), which the employer also bears (décret exécutif 94-187 as amended). Employer cost therefore comes to 25.5 % and the employee deduction to 9 %.

  • In the event of non-compliance:
  • Failure to affiliate: the fine provided for by loi 83-14 as amended, plus late-payment surcharges on the contributions due and the forced collection organised by loi 08-08. The exact amount is set by the CNAS at the time of the audit, so ask your branch for the statement before regularising.
  • Failure to declare salaries: a 15 % penalty on the contributions due + a 5 % surcharge.
  • Failure to declare the activity: a 5 000 DA fine + a 20 % surcharge.

Official references

Useful platforms

  • Official website: https://www.cnas.dz
  • Form downloads, appointment booking, declaration tracking (E-Cotisation).

FAQ · National Fund for Salaried Workers' Social Security (CNAS), Complete Guide

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