Through this service, individuals subscribed to a special agreement regulated by the ORDER of the Ministry of Labour and Social Security of 18 July 1991 (BOE of 30 July), can modify the contribution base, in the special agreements, for the calendar year in which the request for change is made. This service is only operational from January to March. Special agreements regulated by Order TAS/2865/2003 of 13 October, regulating the special agreement in the Social Security System, are excluded from this process.
Individuals subscribed to a special agreement with the Social Security system regulated by the Ministry of Labour and Social Security Order of 18 July 1991 (BOE of 30 July).
Until the last day of the calendar month after the month when the provisions amending the minimum contribution bases come into force, the interested party may select a new basis, which will be effective from the date of the amendment coming into force.
This service will be operational only from January to March of the calendar year in which the request is made.
To access this service check you have the necessary technical requirements.