A new national property register is expected to come online by the end of March. The Property Ownership and Management Register (MIDA) is the AADE’s digital platform to which all the data which are currently dispersed among Tax Offices, the Land Registry and HEDNO (the Hellenic Electricity Distribution Network Operator – DEDDIE in Greek) will be transferred, constituting a single, unified archive.
Its operation opens the way to the comprehensive registration of the nation’s property, as 7 million owners will be called upon to check and to update the details of their properties, declaring for the first time the use of each property, from main and rural (secondary) residences, to rented, vacant, freely assigned or professional properties.

Taxpayers will be called upon by AADE to declare:
1. Property use
The use of the properties which they are reported to have in their possession, i.e. if their property is inhabited, if it is used to fulfil personal needs (e.g. rural/secondary residences), if it is vacant or if it is rented out. Also, if they are in personal use, properties which cover primarily professional needs of the owner such as offices or shops, or if they are assigned without charge to another party.
2. Vacant properties
In an operation of major significance, all unoccupied dwellings will be registered for the first time and there will be a clear picture of the houses which could be put onto the market to counter the housing problem. Also, once the Register is completed and all the data collected, AADE will start cross-checking properties which are declared as unoccupied on the E2 form of the tax return with data from utilities, to identify false declarations. The database will be cross-checked with tax returns, electricity and water consumption, municipal taxes and rentals.
In addition, owners will be required to check the details of properties which appear on the property database of the tax authorities with the corresponding data which have been declared to the Land Registry. The Property ID Number (ATAK) will be identical to the Land Registry Code Number (KAEK), while according to AADE’s plans, taxpayers will be called upon to check the picture of their property which appears on the MIDA. Any errors or omissions will have to be corrected.
Renters
In a second stage, those renting properties will be included on the register so as to compare the details of rented properties with those declared by the owners. The AADE’s aim is to identify “black” income from rents. The organisation has already begun extensive checks on declarations of low rentals.
(Haniotika Nea, 03/02/26)
Tax changes planned for 2027
At the same time, according to an article on the Ta Nea website, the government is bringing forward a new cycle of reductions on rental taxes with a horizon of 2027, aiming at a balance between fiscal stability, boosting incomes and providing relief for property owners and tenants.
The Property Registry will be a central part of the plan, providing a full picture of the property market and reducing tax evasion. The government is aiming to give a strong incentive to owners to declare their real incomes. At the same time it wants to bring unoccupied properties back onto the market, so as to increase the available housing stock and reduce the pressure on prices.
It is estimated that the increase in declared incomes will boost investments in the maintenance and energy upgrading of homes. In addition, increased availability of properties may help to keep prices down, reinforcing stability in the market.
(www.tanea.gr)