Form TA.0521 - Application for Affiliation / Termination / Data Changes in the Special Regime for Autonomous Workers

There are different versions of the TA.0521 form, depending on the type of self-employed worker in question. The respective application may be presented to the Provincial or Administrative Offices of the Social Security Treasury General. If you have a digital certificateor a cl@ve/username and password you can access the following e-Office services:

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