Article D1237-1 of the French Labour Code
The rate of the retirement indemnity provided for in article L. 1237-9 is at least equal to : 1° Half a month’s salary after ten years’ seniority; 2° One month’s salary after fifteen years’ seniority; 3° One and a half months’ salary after twenty years’ seniority; 4° Two months’ salary after thirty years’ seniority.