The two numbers

AFM (Αριθμός Φορολογικού Μητρώου) is your tax number:

9 — source and verification date

AFM length

Reported Consistently reported by several credible sources, but not confirmed against the primary source.

Nine digits, issued once, valid for life.

In force from 1 January 1990.

Source: AADE tax registry

Last verified 12 September 2026 by spec-import.

digits, issued once, valid for life, and €0 when you apply in person at a tax office — a DOY. You do not need to live in Greece to get one.

AMKA is your social security number:

11 — source and verification date

AMKA length

Reported Consistently reported by several credible sources, but not confirmed against the primary source.

Eleven digits. Required for healthcare and employment.

In force from 1 January 2009.

Source: e-EFKA social security registry

Last verified 12 September 2026 by spec-import.

digits, obtained at a KEP (Citizens Service Centre), a KEM (Centre for Migrant Integration) or an e-EFKA office.

Taxisnet, gov.gr and the Wallet

Once the AFM is active, register for Taxisnet credentials and a gov.gr account — these unlock online tax filing, certificates and most digital services. Then install the gov.gr Wallet app, which stores the digital ID, AMKA card, European Health Insurance Card and driving licence. Many pharmacies and doctors accept the digital AMKA directly from it.

One piece of local knowledge worth having: KEP offices are materially faster than individual ministry offices for standard services such as certified copies and attestations. When you have a choice, choose the KEP.

The ADET

For non-EU nationals, the residence permit card itself is the ADET, a biometric card issued by the Ministry of Migration and Asylum. It becomes your main legal identity document in Greece — for banking, leases and services — and it allows short-stay travel elsewhere in the Schengen Area. See the residence routes for how to get one.

Apostilles and certified translations

Foreign documents generally need two things before a Greek authority will accept them: an apostille, which certifies that a foreign public document is genuine, and a certified translation into Greek by a translator Greek authorities accept. Where the issuing country is not party to the Hague Convention, legalisation through a consulate replaces the apostille and takes considerably longer.

Both take weeks, and both are the commonest reason an application is sent back. Start them the day you decide to apply. Each route page lists which of its documents need which.