First, employees must have a social security number (NUSS) to identify them in their contact with the Spanish Social Security. This number is then referred to as the affiliation number when the employee starts their first paid job.
If the employee has no Social Security number (NUSS), the employer must apply for one through the RED system. Employees may apply for this themselves through the portal of the Social Security General Treasury
or the IMPORTASS Social Security app
, under the service ‘Apply for a Social Security number’. If the employee has no online ID, they can apply for an online ID
. To do this, they will need their ID document, an email address, an electronic device with a camera, and to attach the TA.1 form
.
Registration of the worker must then be processed via the RED system under the corresponding social security category, either General, Coal Mining Sector or Offshore Workers.
Employees may apply for this themselves through the portal of the Social Security General Treasury or the IMPORTASS Social Security app, under the service ‘Apply for a Social Security number’.