Airbnb, Booking, VRBO and AADE: data matching and the three-property business threshold

The booking appears on the platform, the payment arrives after the platform has deducted its commission, and AADE's registry must record the correct stay, property and income beneficiary. If any of these details do not match, the discrepancy may be detected years later when AADE cross-checks data from Airbnb, Booking.com or VRBO.

1. Why data cross-checking is no longer a theoretical possibility

AADE's 2025 annual report describes specific enforcement measures. A total of 12,145 listings were referred to Airbnb, Booking.com and VRBO for deactivation because they had no AMA or displayed an invalid one. For 2025, AADE had collected 2,466,075 Short-Term Stay Declarations and reported rental income of EUR 973,712,806.14 before the registry was finally closed.

In a separate cross-check of platform data for tax years 2020 to 2022, AADE identified 24,383 unique Greek tax identification numbers (AFM) with a difference of more than EUR 500 in declared income. This figure refers to cases selected for contact and possible amended returns. It does not mean that 24,383 people were found guilty or that every difference represented undeclared income.

2. What may be compared in practice

A cross-check is not simply a comparison of “bank account versus E1 tax return”. The overall picture is built from several sources:

• the host's or property manager's profile on the platform,
• the listing address and details,
• the AMA displayed in the listing,
• arrival, departure and cancellation dates,
• the total consideration, commissions and deductions recorded by the platform,
• the Short-Term Stay Declarations,
• the allocation of income between the manager and the other beneficiaries,
• the amounts ultimately transferred to the declared payment account, and
• the amounts entered in the income tax return.

The DAC7 framework presented by AADE and Council Directive (EU) 2021/514 provide for the reporting of a seller's or lessor's identity, tax identification number, payment account where available, quarterly consideration, number of relevant activities, fees, commissions or taxes withheld and, for immovable property, its address and other available details. This does not mean that the tax authority reads every host's private messages or that every item of data is infallible.

3. The most common source of confusion: agreed rent, DAC7 consideration and net payout

There is no single “platform amount”. Under DAC7, consideration is stated after deducting the commissions, fees or taxes withheld by the platform, while those amounts are reported separately. The Short-Term Stay Declaration records the agreed rent or cancellation amount, excluding the taxes and charges on the transaction. The bank credit may differ from both.

A simplified example: the agreed rent is EUR 1,000, the platform withholds EUR 150 and the host receives EUR 850. The EUR 150 difference can be fully explained, but only if the booking, the amount declared in the registry, the DAC7 consideration, the separately reported commission and the bank credit all reconcile. Any taxes, charges, refunds or third-party amounts need their own line. The correct treatment also depends on whether the operator is a natural person or a legal person and on the applicable tax regime.

4. Six legitimate or correctable causes of a discrepancy

1. Platform commission: the net remittance is compared with a gross amount.
2. Cancellation or refund: the original booking, cancellation compensation and refund have not been recorded in the same way.
3. Different tax year: the booking, departure and payment fall in different reporting periods.
4. Different income beneficiary: the manager receives the payment, but the income must be allocated to the owner or co-owners.
5. Duplicate or incorrect entry: the same stay is entered twice or linked to the wrong AMA.
6. Several platforms: exports from Airbnb, Booking.com and VRBO have not been consolidated and a booking is missing from the internal records.

There can, of course, also be genuine omissions. The distinction must be established from primary records, not from an improvised explanation after an AADE notice arrives.

5. The AMA must correspond to the correct listing

AADE's Short-Term Rental service links each property to an AMA and its corresponding stay declarations. An old AMA used in a new listing, a number copied from another room, or an AMA that no longer corresponds to the current manager may lead to the listing's deactivation and a tax audit.

Check the number in every language and version of the listing, not only on the main page. Also check whether the property is offered both as a whole and as separate rooms. AADE's official short-term rental FAQ explains when separate AMAs are required and the narrow exception that applies when one property is also offered as two rooms.

6. When the Short-Term Stay Declaration must be filed

The general rule is clear: the declaration must be filed by the 20th day of the month following the tenant's departure. If a booking is cancelled and rent remains payable under the cancellation policy, a declaration must be filed by the 20th day of the month following the cancellation. If a subsequently cancelled booking had already been entered, the corresponding amendment is required.

Deadlines may occasionally be extended by a specific decision. An exceptional extension does not become a permanent rule. For every delayed filing, check AADE's current announcement and do not rely on an old article or social media post.

7. Finalising the registry is the last reconciliation point

Declarations may be amended until 28 February of the year in which the income tax return is filed and before the registry is finalised. Until then, the manager may correct inaccurate entries and the actual allocation among beneficiaries, subject to the conditions set out by AADE.

Do not treat 28 February as the date of the first review. Reconciliation should be performed every month. Annual finalisation is a completion check, not a method for reconstructing hundreds of bookings from memory.

8. When operating three properties is treated as a business activity

For an individual making available up to two furnished properties without services other than bed linen, the proceeds are treated as income from immovable property and the letting is exempt from VAT. From three distinct properties upwards, the income is treated as business income and all related properties become subject to VAT. Legal persons and legal entities earn business income regardless of the number of properties.

The general VAT rate for accommodation is 13%. From 1 January 2026, a 9% rate may apply on specified islands, but only where the territorial and other conditions explained in AADE Circular E.2113/2025 are met. The change of regime is also associated with registering the commencement of business, accounting obligations and myDATA. From 1 March 2026, the current Greek Activity Codes (KAD) are 55200105 for rentals through platforms and 55200106 for rentals outside platforms, in accordance with the official transition to the 2025 KAD classification.

AADE states that, as a general rule, the number of AMAs is used to determine the number of properties. Obtaining a third AMA demonstrates an intention to operate the property and starts a 30-day period for registering the commencement of business, subject to the specific exception for a single property also offered as two rooms. Waiting for the first payout from the third property is not a safe approach.

9. Four examples illustrating the threshold

10. Co-ownership and management: the calculation is not the same for everyone

In cases of co-ownership, the tax classification is assessed individually for each natural person. One co-owner may reach the three-property threshold while another has an interest in only one property. AADE's FAQ includes examples in which the first person earns business income while the second continues to receive income from immovable property.

Particular care is needed when the manager is a co-owner or sublessor. A genuine long-term lease that includes a right to sublet may separate the obligations of the owner and the manager. Without such a relationship, the allocation of AMAs and income may affect several co-owners. Merely choosing a payment account does not resolve the issue.

11. Additional services change the classification

Since 1 January 2024, a short-term rental has been a furnished letting for up to 59 days without services other than bed linen. The limit applies to each separate contract, not to the total number of days in a year, and applies whether the booking was made through a platform or directly. If services such as daily cleaning during the stay, meals, organised transport or other hotel-type amenities are provided, the property is treated as tourist accommodation and business registration is required, regardless of whether one or two properties are involved.

Delivering a clean property before arrival is not the same as systematically providing a service to the guest. The listing description, messages, receipts and actual operation must tell the same story.

12. What to do if you receive a message or call from AADE

1. Confirm that the message also appears in the official myAADE environment. Do not open links in a suspicious email or text message.
2. Record the exact tax year, amount, deadline and type of action requested.
3. Download complete booking and payment exports from every platform before access or file formats change.
4. Export the Short-Term Stay Declarations and the registry's final position.
5. Reconcile every booking: AMA, guest, arrival, departure, gross amount, commission, refund, net payout and beneficiary.
6. Separate a genuine error from a difference supported by a documented explanation.
7. Before filing an amended return or replying to an audit, review the records with an accountant or tax adviser experienced in short-term rentals.

Do not rush to file an amended return simply to “close” the notice. An incorrect amendment may create a new discrepancy involving VAT, charges, beneficiaries or a later tax year.

13. The file that should exist before an audit

• annual and monthly export files from every platform,
• a record of bookings, cancellations, refunds and compensation,
• a detailed statement of commissions and withholdings,
• bank transactions and a matching record for every consolidated payout,
• the AMA history and screenshots of the listings in which the number appears,
• Short-Term Stay Declarations and proof of filing,
• management agreements, leases with a right to sublet and co-ownership details,
• a table allocating income to the actual beneficiaries, and
• copies of E1, E2 and E3 forms, VAT returns and myDATA records, as applicable.

Records should be retained in their original format. A spreadsheet prepared later is useful for reconciliation, but it does not replace the original export or proof of filing.

14. A practical booking-by-booking reconciliation table

The most effective preventive measure is a standard table with one row for each booking:

15. What you should not infer from a cross-check

The appearance of a discrepancy is not the same as a tax assessment, penalty or criminal case. AADE may first request compliance, an amended return or an explanation. If an audit and a tax assessment follow, the specific deadlines and rights to be heard and to challenge the decision are those stated in the relevant act.

Conversely, the absence of a message today does not prove that the records are correct. Cross-checks may concern earlier years and use data reported at a later date. A correction should be made because a genuine error has been identified, not merely because a general news story has circulated.

16. A ten-minute check before the next booking

• Is the AMA in the listing active and does it correspond to that specific property?
• Are the manager's name and Greek tax identification number (AFM) correct on every platform?
• Does the payment account belong to the appropriate person, or is there a documented relationship with the beneficiary?
• Is there a third active AMA or a new service that changes the tax regime?
• Were all declarations for the previous month filed by the 20th?
• Have cancellations for which an amount was due been recorded?
• Do gross amounts, commissions, refunds and bank payouts reconcile?
• Has the platform's original export been saved?

17. Frequently asked questions

Does AADE tax the amount it sees in the bank account?

Not through such a simple mechanism. The bank credit is one piece of information. The rent in the Short-Term Stay Declaration, the DAC7 consideration, the separately reported commissions and deductions, cancellations, charges, actual beneficiary and applicable tax regime must all be reconciled.

If I have three AMAs but the third property has not been rented, should I wait?

Not without professional advice. The official FAQ links obtaining a third AMA to an intention to operate and provides for an application to commence business within 30 days, except for the specific exception concerning the same property and its two rooms.

If the platform made a mistake, is a screenshot enough?

Usually not. Keep the complete export, support correspondence, bank transaction, AADE declaration and a table that explains the discrepancy numerically.

Can I correct all previous declarations myself?

The available correction procedures depend on whether the registry has been finalised, the tax year and the nature of the omission. Before making changes in bulk, the overall effect must be reviewed.

18. A sound system is the best defence

Short-term rental compliance is no longer determined by a single annual total. An accurate position is built booking by booking: the correct AMA and reporting period, the correct agreed rent, a separate DAC7 consideration, a clear explanation of commissions and deductions, the correct beneficiary and a timely declaration. This makes it possible to detect a genuine discrepancy while it can still be corrected and to substantiate an apparent discrepancy without panic.