Latest news and stories about niss in Portugal for expats and residents.
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Home News AIMA alerts immigrants to update data AIMA alerts immigrants to update data At the beginning of 2026, AIMA is asking immigrants to correct and update their address and Social Security Number (NISS) information.

The Agency for Integration, Migration and Asylum informs that it is now possible to update long-term residence permits through its portal, but only if one has the Social Security number.
