The Digital Customer Register for garages, step by step: from the car coming in to the receipt.

The Digital Customer Register is an AADE app inside myAADE, the tax authority’s online portal, where you enter every vehicle you take in, at the moment you take it in. Decision A.1057/2025 asks for the entry to be made “in real time and in any case before the services begin”.

With this data, AADE cross-checks the cars that came into a garage against the receipts and invoices that were issued, and compares each garage with others in the same trade. That’s why every entry closes with the document’s MARK (the number that myDATA, AADE’s platform for invoices and receipts, gives every document) or with the details of the cash register receipt.

The decision has applied since 14 April 2025. Up to 30 June 2025 entries were optional, and since 1 July 2025 they have been mandatory for every business in the trade, whatever its size.

It must be kept by businesses with an activity code (KAD) listed in the annex to the decision, as their main or a secondary activity. In practice that means five trades, and each makes the entry at a different moment:

If you must keep the register but the app won’t let you in, with a message that your activity code isn’t eligible, check your codes in AADE’s register with your accountant.

Article 3 of the decision leaves out the following cases:

• leasing companies;
• self-service systems, when the document is issued as soon as the service ends;
• a dealer’s work on new cars before delivery, such as dewaxing;
• renting spaces on a fenced plot, with no guarding or other services;
• repairing parts brought in without the vehicle, such as an engine;
• a business’s car park for its own customers;
• a mobile mechanic repairing at the breakdown site.

Every entry goes through four steps. The table shows them in order, and below it we explain what you enter at each one.

1. Arrival. As soon as the car comes in, you enter the premises, if you have more than one, the plate and the type of service: one-off for an ordinary repair, recurring if you issue a business a consolidated invoice, continuous for subscriptions and leases. For a Greek plate, AADE fills in the vehicle’s category and make. When the customer is a business, you also enter its VAT number; for a private customer it’s optional. When you save, the entry gets its own unique number.

2. Service category. At the start or during the work, you choose one of AADE’s categories: work using spare parts, work with parts the customer brought, work without parts, own use, free service, warranty compensation, or other. You can also enter the amount you agreed with the customer.

3. Exit. When the work is done and the car leaves, you enter the exit time and the type of document you issued or will issue: a receipt (ΑΛΠ/ΑΠΥ), an invoice, or a receipt from a cash register (ΑΛΠ/ΑΠΥ-ΦΗΜ). If the work was free, for your own use or under warranty, you don’t enter a document.

4. Document. As soon as the receipt or invoice is issued, you enter its MARK. If the receipt came from a cash register, you enter the register’s number, the receipt’s number for the day, the date and the time. The document number, the amount and the payment method are filled in from AADE’s data where possible. Invoices to businesses, such as insurers, go out only through a provider from 1 February 2027: see what changes in Greek e-invoicing on 1 February 2027.

Until the exit and the document are entered, the entry shows as “pending” (Εκκρεμής) in the app. It’s worth checking the pending entries at the end of every day.

• A road test or a stop for fuel. If the car goes out briefly and can be back in reasonable time when an inspector asks for it, you enter nothing.
• Work at another garage. If the car goes to a partner or to another of your own premises, the entry closes with “services provided outside the premises” (Παροχή υπηρεσιών εκτός εγκατάστασης), and with the partner’s VAT number when it’s another business. When the car comes back, a new entry opens.
• A car without plates, or with foreign plates. You choose “foreign registration / vehicle not found” (Αριθμός κυκλοφορίας οχήματος αλλοδαπής / Μη εύρεση οχήματος). Without plates, you enter the chassis number. With foreign plates, or when AADE can’t find the vehicle, you fill in the category and make yourself.
• Two documents for one car. It happens when the customer pays part and an insurer pays part. The decision asks that, when you issue several documents without the car leaving, there are as many entries as documents. AADE’s frequently asked questions also accept several documents on one entry. Agree with your accountant how you’ll record it.
• A wrong entry. It can’t be corrected in place. You cancel it and make a new one with the right details, linked to the cancelled one, and the app keeps the history of both.

If there’s no connection to the app, work doesn’t stop. As soon as the connection is back, you make the entry straight away, as article 5 of the decision requires: you choose “loss of connection” (Απώλεια Διασύνδεσης) and enter the real time the car came in. Only in this case may the arrival time differ from the time of the entry.

In practice, note the time somewhere the moment the car comes in: on the reception pad, in a photo with the time on it, or in your software. Garage software does this without anyone having to think about it: it holds the arrival with the real time and sends it as soon as the connection is back.

Every entry counts as an information return. An entry made late counts as a late return, an incomplete one as an incomplete return, and a car never entered as a return not filed. Each carries the penalty of article 53 of the Tax Procedure Code, which according to AADE’s circular E.2059/2025 is €100 for every violation.

The penalty counts per car, not per day: ten cars without an entry are ten violations.

Checks have already started. According to AADE, 949 targeted checks were carried out in 2025 based on Digital Customer Register data. In 2026, up to 2 July, another 1,145 were carried out in the motor and transport trades, and 693 of them found violations.

As of 2 November 2026, the Digital Customer Register applies only to the vehicle trades. The only decision on AADE’s page is A.1057/2025.

Press reports in 2025 and 2026 say that events and catering businesses will follow, and later gyms, beauty salons, physiotherapy practices and hotels. These are plans reported in the press, not decisions: none has been published to date.

One change already applies. Under decision A.1150/2025, businesses that keep a Digital Customer Register no longer file the agreements they make with their customers from 1 July 2025 in the statement of agreements (Κατάσταση Συμφωνητικών), as long as the transactions show in the register. AADE has announced that the same exemption will apply to every sector added in future.

AADE provides the app free of charge. You sign in with the access codes you create in myDATAusers, and from there you can give an employee access with their tax number (ΑΦΜ), so they make entries with their own codes.

For a garage with a few cars a day and receipts from a cash register, the app is enough. But if you keep job cards, parts and receipts in software, every car is entered twice, once in the software and once in the app, and the MARK is copied by hand.

AADE also has an interface (API) for business software. Through it, garage software sends the arrival from reception, the category from the job card and the MARK from the receipt, without anyone opening the app. If you work with software, keep the app for emergencies only, so the same car isn’t entered twice. See how we set up garage software on Odoo.

1. Check your activity codes with your accountant: if one of them is in the annex to A.1057/2025, as a main or secondary activity, you keep a Digital Customer Register.
2. Create codes in myDATAusers for everyone who makes entries, one for each person.
3. Decide who enters the arrival, and when: at reception, before the car goes on the lift.
4. Agree the service categories you use, especially for warranties, free checks and diagnostics.
5. Note the arrival time when the internet goes down, and make the entry as soon as the connection is back.
6. Close the pending entries every afternoon: exit and MARK, or the cash register details.
7. Ask your accountant how to record jobs with two documents, for example when an insurer pays part.