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Number of Social Security Affiliation in Burgos (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 Number of Social Security Affiliation (NAF) in Burgos. Free procedure, available online or in person at the General Treasury.

Required documents

  • DNI, NIE or passport

    Valid original identity document.

0 €
Free procedure €0.00
€0.00
€0.00

: 2026

Step by step

  • 1

    Online procedure (recommended)

    Go to official site

    Access 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 site

    Request an appointment at the General Treasury of the Social Security in Burgos.

    !

    Expert tip

    "Always bring your DNI or NIE original document."

Offices and service points - Burgos

General Treasury of the Social Security — Burgos

Monday to Friday: 09:00 - 14:00

Frequently asked questions

Is NAF the same as NIF?
No. The NAF (Number of Social Security Affiliation) is specific to the Social Security and used for contributions. The NIF is the fiscal identification number (your DNI or NIE). They are different documents.
When do I need the NAF?
When you start working, if you register as self-employed, or when you need to access Social Security benefits.

Official sources and useful links

This guide is for informational purposes only. Always check the official source for current information.