Number of Social Security Affiliation in Fuenlabrauda (2026)
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Cost
Free
Free procedure
Time at office
30 minutes at the appointment
Estimated time
Immediate online
Quick summary
How to obtain the Social Security Number of Affiliation (NAF) in Fuenlabrada. Free procedure, online or in person at the General Treasury.
Required documents
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DNI, NIE or passport
Valid original identity document.
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Free procedure €0.00
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: 2026
Step by step
- 1
Online procedure (recommended)
Go to official siteLog in with Cl@ve or digital certificate to the Social Security Electronic Office.
!Expert tip
"If you already have a Cl@ve, the process is immediate without leaving home."
- 2
In person with prior appointment
Go to official siteRequest an appointment at the General Treasury of Social Security in Fuenlabrada.
!Expert tip
"Always bring your DNI or NIE original."
Offices and service points - Fuenlabrada
General Treasury of Social Security — Fuenlabrada
Monday to Friday: 09:00 - 14:00
Frequently asked questions
Is NAF the same as NIF?
No. The NAF (Number of Affiliation) is exclusive to Social Security and serves for contributions. The NIF is the fiscal ID number (your DNI or NIE). They are different documents.
When do I need the NAF?
When starting work, if you become self-employed, or when needing access to Social Security benefits.
Official sources and useful links
This guide is for informational purposes only. Always check the official source for current information.