Greek AFM for Property Buyers: What Foreign Buyers Actually Need
If you are buying property in Greece, you need a Greek tax identification number known as an AFM — ΑΦΜ (Αριθμός Φορολογικού Μητρώου). AADE describes it as the unique nine-digit number used by the Greek tax administration to identify a taxpayer, and its property-buying guidance says that buyers living either in Greece or abroad must have or obtain one before purchasing property. Source: AADE.
For a foreign buyer, the important distinction is this: An AFM identifies you in the Greek tax system. It does not, by itself, make you a Greek tax resident, and it is not the same thing as your myAADE/TAXISnet login credentials.
Non-residents can now apply electronically, and AADE’s current registry procedure allows identity verification through myAADElive video call rather than requiring every applicant to travel to a Greek tax office. Source: AADE Registry Procedures Guide.
What exactly is an AFM?
AFM stands for Αριθμός Φορολογικού Μητρώου — Arithmós Forologikoú Mitróou.
In practical English, it is your Greek Tax Identification Number (TIN).
AADE describes the AFM as a unique nine-digit number issued by the tax administration to identify a person through their personal details. Source: AADE.
For a foreign property buyer, think of the AFM as the identifier that connects you to the Greek tax and property-administration system.
It becomes relevant not only to the purchase itself but also to later matters such as property-transfer tax, E9 property reporting, ENFIA property tax, accessing your Greek tax account, and other tax procedures connected with owning Greek property. Source: AADE.
The AFM is not a document about the property. It identifies you, not the house or apartment. Obtaining one means the Greek tax administration can identify you as a taxpayer. It says nothing about whether the property has clean title, whether the building is legal or whether the asking price is reasonable.
Do foreign buyers really need an AFM before buying property?
Yes.
AADE’s property-purchase guidance says that whether you live in Greece or abroad, you must have or obtain an AFM in order to buy Greek property. Source: AADE.
This makes the AFM one of the early administrative prerequisites of a purchase.
It also connects to the property-transfer tax process. AADE states that before the transfer contract is drawn up, the buyer and seller must deal with the applicable real-estate transfer tax declaration and the buyer must pay the tax due. Source: AADE.
Do not wait until the day of the notarial deed to discover that you still need to enter the Greek tax system. The sensible sequence is: Get the AFM early enough that it does not become the administrative bottleneck once you have found a property.
AFM, myAADE and TAXISnet are related — but they are not the same thing.
| Term | What it is |
|---|---|
| AFM / TIN | Your Greek tax identification number |
| Authentication Key | Used in the process of activating access to AADE’s digital services |
| myAADE / TAXISnet credentials | Username/password access to the Greek tax administration’s online services |
AADE’s current procedure allows a foreign tax resident to apply for the TIN and Authentication Key together through the relevant myAADE application. After successful identity verification and processing, AADE can send the TIN certificate, Authentication Key and access credentials electronically. Source: AADE.
When arranging your AFM, ask whether the process also leaves you with working access to myAADE/TAXISnet. You are likely to need that digital access again as an owner.
Can a foreign buyer get an AFM from abroad?
Yes.
AADE’s June 2026 Registry Procedures Guide says that a foreign tax resident applies electronically through the dedicated application in the myAADE digital portal. Source: AADE.
When the applicant submits the application personally, identity can be verified through a scheduled video appointment through myAADElive, a direct video call with the first available myAADElive agent, or physical attendance at a tax office or other competent service point.
AADE also separately confirms that the myAADElive service supports remote identity verification for issuing a TIN, Authentication Key or both. Source: AADE.
If you live in Germany, the UK, Netherlands, United States or elsewhere, the AFM should not automatically require a special trip to Greece. Check the current myAADE procedure before organising travel purely for this administrative task.
What documents does a foreign buyer need?
The exact documentation depends on the applicant’s circumstances and on whether someone else is acting for them.
For a straightforward adult foreign applicant, AADE’s current registry guidance includes an identification document such as passport, national identity card, EU identity card, or another recognised identification document. Source: AADE.
Additional documents can be required according to circumstances. For example, AADE lists a marriage or civil-partnership certificate where applicable, with the relevant certification and official Greek translation requirements for foreign documents.
Foreign documents
AADE’s 2026 guide explains that, where relevant, foreign public documents may need an Apostille for countries participating in the Hague Convention, or the applicable consular legalisation, followed by official translation into Greek.
Do not assume that because the AFM application is digital, every supporting document can simply be uploaded in whatever form you already have. Check document authentication and translation requirements before submitting the application.
Do non-residents have to appoint a Greek tax representative?
Not necessarily.
This is an area where a lot of older online information is now misleading.
AADE’s June 2026 Registry Procedures Guide expressly states that appointment of a tax representative is optional for foreign tax residents applying for a TIN and Authentication Key. Source: AADE.
The guide contains separate procedures for foreign tax residents with a tax representative and foreign tax residents without one.
If a taxpayer chooses not to appoint a tax representative, AADE’s current process provides for the competent authority to be the KEFODE of Attica, and the applicant accepts that Tax Administration notices will be sent to the contact details registered with AADE.
If someone tells you that every foreign buyer is legally required to appoint a Greek tax representative simply in order to obtain an AFM, ask them to check the current AADE procedure. The current official guidance says the appointment is optional.
Can a lawyer, accountant or another person obtain the AFM for you?
The current system allows applications to involve the applicant, a legal representative, a tax representative, or an appropriately authorised third party. Source: AADE.
If an authorised third party acts, AADE requires the applicable authorisation documentation. The exact content matters because the authorisation can determine what the third party is permitted to receive on the applicant’s behalf.
You can outsource the administrative work. Do not outsource your understanding of what was created. When the process is finished, confirm that you know your AFM, which email and contact details AADE has recorded, whether a tax representative has been appointed, who has authority to act for you, and how you access your own myAADE account.
Does getting an AFM make you a Greek tax resident?
No.
An AFM is a tax identification number. Tax residence is a separate legal concept.
AADE explains that Greek tax residence is determined by statutory criteria such as permanent or principal residence, habitual abode, centre of vital interests and, subject to exceptions, presence in Greece for more than 183 days during a twelve-month period. Source: AADE.
Simply obtaining an AFM does not satisfy those criteria by itself.
Do not interpret “I now have a Greek tax number” as “Greece now automatically taxes my worldwide income.” Those are two very different legal questions.
Does buying property mean a non-resident must file a Greek income-tax return every year?
Not necessarily.
AADE states that adult non-Greek tax residents are required to file a Greek income-tax return when they obtain real Greek-source income that is taxable or exempt. Source: AADE.
AADE’s non-resident FAQ goes further: a foreign tax resident who owns a secondary residence in Greece or purchases Greek property, but does not obtain real income in Greece, is not required to file a Greek income-tax return for that reason alone. Source: AADE FAQ.
That does not mean the property creates no obligations. Property reporting and property tax are separate.
Do not collapse all Greek taxes into one concept. Owning property, earning income and being tax-resident are three separate questions.
Where does your AFM appear in the property purchase itself?
The AFM becomes part of your identity throughout the transaction.
One of the clearest examples is the property-transfer tax process. AADE states that in every taxable sale of Greek property, the buyer is responsible for the applicable Real Estate Transfer Tax and that the required declaration must be dealt with before the transfer contract is drawn up. Source: AADE.
Many transfer-tax declarations are handled digitally through myPROPERTY.
The AFM is not merely a number the notary writes into the final deed. It is part of the infrastructure through which the tax side of the acquisition is handled.
What happens to the AFM after you buy?
It continues to matter.
Foreign residents who acquire Greek property are required to have the acquisition reflected in the Greek E9 Real Estate Statement. Source: AADE.
AADE states that the E9 is normally due by 31 March of the following year after the acquisition or change, subject to the specific rules and exceptions.
For transactions where the property-transfer tax declaration is submitted digitally through myPROPERTY, the E9 can be generated automatically. AADE says the contracting parties are informed by email when this happens — or if automatic generation was not possible.
The E9 data is then used in the annual calculation of ENFIA, Greece’s recurring property-ownership tax.
Once you own Greek property, your AFM becomes part of an ongoing owner record. That is why you should keep control of the associated myAADE credentials and contact information rather than treating the AFM as a one-off pre-purchase formality.
AFM does not prove anything about the property.
An AFM confirms that you have a Greek tax identity.
It does not prove ownership is clean, the seller is entitled to transfer the property, the cadastral record matches, building permits are correct, there are no illegal alterations, the property is free from liens, the asking price is supported by transactions, the purchase qualifies for Golden Visa treatment, or the transaction is otherwise safe.
Getting an AFM is an administrative prerequisite. It is not due diligence. The fact that the buyer is ready to transact should never be confused with evidence that the property is ready to transfer.
When should you get your AFM?
There is no buyer advantage in leaving it until completion.
Once you are seriously considering purchasing in Greece, the AFM is one of the few administrative steps that can often be arranged before a particular property has completed due diligence.
| Stage | AFM status |
|---|---|
| Browsing Greek listings casually | Not necessarily urgent |
| Planning to make offers / actively searching | Sensible time to organise it |
| Property selected | Should be underway or complete |
| Transfer-tax / notarial stage | Must already be available |
This is one administrative task that can be moved ahead of the property investigation without increasing your exposure to a bad property. You are preparing yourself, not committing to the house.
What should you have at the end of the AFM process?
Do not treat the process as complete merely because someone sends you nine digits over WhatsApp.
Your AFM
The nine-digit tax identification number itself.
Your registered personal details
Make sure names and identification details accurately reflect your documents.
Your registered email and contact details
Especially important if you are not appointing a tax representative.
Your representation status
Know whether AADE records a tax representative for you.
Your myAADE / TAXISnet access
Know whether you can actually log in and access the digital services associated with your tax identity.
Any authority given to a third party
Understand who can act for you and under what authorisation.
The four distinctions foreign buyers should remember.
| Concept | What it answers |
|---|---|
| AFM | Who are you in the Greek tax system? |
| myAADE/TAXISnet access | Can you access your Greek tax account digitally? |
| Tax representative | Has someone been appointed to represent you for Greek tax-administration purposes? |
| Tax residence | Which country treats you as tax-resident under the applicable legal tests? |
Getting a Greek tax number makes you administratively identifiable. It does not, by itself, change where you are tax-resident or prove anything about the property you intend to buy.
What this guide cannot tell you.
This article cannot determine whether your personal documents need additional certification, whether a marriage or other civil-status document is required in your case, whether you should appoint a tax representative, whether a particular power of attorney is sufficient, whether you are Greek tax-resident, whether you have an income-tax filing obligation, or whether a specific tax treaty changes the taxation of income you later derive from Greece.
Those questions depend on your personal circumstances.
AADE’s procedures can also change, so the application route and supporting-document requirements should be checked against the current registry guidance when you actually apply.
Common questions.
Can I get an AFM without travelling to Greece?
Yes. AADE’s current procedure allows foreign tax residents to apply electronically and provides remote identity verification through myAADElive video call. Source: AADE.
Do I need a Greek tax representative to get an AFM?
Not in every case. AADE’s June 2026 Registry Procedures Guide states that appointment of a tax representative is optional and includes a specific procedure for foreign tax residents who do not appoint one.
Can my lawyer or accountant apply for me?
AADE’s procedure allows appropriately authorised representatives or third parties to submit the application. The required authorisation documentation depends on how the application is structured.
Does an AFM make me tax-resident in Greece?
No. Greek tax residence is determined under separate statutory criteria. Holding an AFM does not by itself establish Greek tax residence.
Do I have to file a Greek income-tax return just because I bought a holiday home?
AADE says a foreign tax resident who buys or owns Greek property but does not obtain real Greek-source income is not required to file a Greek income-tax return for that reason alone. Property-related obligations such as E9 and ENFIA remain separate.
Do I still need the AFM after the purchase?
Yes. It remains connected to your Greek property and tax administration, including E9 and ENFIA.
Found a property already?
Getting an AFM makes you ready to enter the Greek transaction.
It does not make the property ready to buy.
Once your administrative setup is in place, the next question is whether the legal, technical and market evidence around the specific property supports the purchase.