IMF Urges Greece to Tax Empty Homes — What Buyers and Investors Should Expect

Policy options being discussed or already adopted elsewhere include:

• Caps on short-term rental listings in specific neighbourhoods.
• Minimum stay rules that favour longer lets.
• Registration and licensing regimes with linked tax and safety obligations.

If Greece chooses to combine a vacancy levy with tighter control of short-term rentals, the central Athens rental market could be reshaped quickly. That will matter for investors focused on tourist accommodation, and for long-term rental investors who could see competition recede or change in character.

What this means for buyers, landlords and investors

We examine implications across investor types and phases of the market cycle.

Buyers and owner-occupiers

• If authorities succeed in bringing vacant units into long-term rental or owner-occupation, supply in targeted districts could increase, slowing price growth locally. For buyers seeking a pied-à-terre in Athens, that could mean better negotiation leverage in micro-markets with many vacant homes.
• But until MIDA data arrive and a levy is clearly designed, uncertainty will remain. We advise buyers to track registry rollout dates and municipal ordinances closely.

Buy-to-let landlords and institutional investors

• A vacancy levy increases the cost of leaving a property empty, which creates an incentive to lease or sell. For professional landlords this can be an operational cost to incorporate into yield models.
• Renovation subsidies tied to income criteria could lower capex for converting older units into compliant rental stock, improving returns for investors who focus on mid-market refurbishments.

Short-term rental operators and tourist accommodation investors

• Tighter regulation, registration and local vacancy measures will change the calculus for short-term rental business models in central Athens and other high-demand areas. Investors must model regulatory risk and potential loss of listing density.

Developers

• A successful vacancy levy might take pressure off the need for new supply in certain central locations but increase opportunities for conversion projects — repurposing vacant apartments into regulated long-term housing.
• At the same time, the construction sector remains supply-constrained; developers should not assume a rapid shift from vacant stock to occupied units.

Tactical steps for market participants

If you are active or planning to be active in the Greek property market, consider these practical steps we recommend:

1. Monitor MIDA's operational calendar and the first datasets it releases — they will change local risk profiles.
2. Run scenario stress tests on rental yields that include a vacancy levy and potential short-term rental restrictions.
3. For renovation projects, map eligibility for income-targeted programs and build application timelines into project management.
4. For acquisitions in central Athens, conduct heightened due diligence on property use history and ownership chains; servicer portfolios may contain assets with complex legal statuses.
5. Engage local legal and tax counsel early to understand likely exemptions, appeal rights and administrative procedures.

Likely outcomes and market outlook

Any policy package’s practical effect depends on detail. We see a few realistic scenarios:

• If the levy is moderate and paired with accurate data from MIDA, some vacant units will enter the long-term rental market and the immediate pressure on central districts may ease slowly.
• If the levy is high but enforcement weak, owners may pursue legal challenges and market disruption will be limited.
• If authorities also clamp down on short-term rentals in high-pressure zones, central Athens could see a meaningful reallocation of stock from tourists to residents, changing income profiles for property investors.

Two facts should frame investor expectations: the Bank of Greece recorded a 7.8% rise in housing sales prices in 2025, and ELSTAT’s 2021 census recorded 526,154 vacant homes in Attica. Together these figures explain why policymakers are looking beyond construction incentives and toward measures that change how existing assets are used. But policy design and administrative capacity will determine whether this is an efficient reallocation or an extended political contest.

Risks and downside scenarios

We must be frank: policies that aim to convert vacant stock can produce unintended consequences.

• Owners may accelerate sales, creating short-term price volatility.
• If the registry contains inaccuracies or enforcement is uneven, the levy could be perceived as arbitrary and face legal challenges.
• Banks and servicers holding REO portfolios might dump assets, increasing supply but also compressing prices in some segments.

Recognising these risks is not an argument against reform; it is an argument for careful, data-driven implementation and explicit transition arrangements for affected owners.

Frequently Asked Questions

Q: What exactly is MIDA and why does it matter? A: MIDA is the Real Estate Ownership Registry that is about to start operating. It will require owners to declare actual property use — owner-occupied, long-term rented, short-term rented, vacant, or granted free of charge. MIDA matters because it provides the up-to-date data authorities need to apply measures such as a vacancy levy fairly and effectively.

Q: How many vacant homes are there in Athens and Attica? A: According to ELSTAT’s 2021 data, Attica had 526,154 vacant residential properties, and the centre of Athens had 117,137 vacant homes (26.8% of its stock). These are the most recent comprehensive figures, but they are dated and the MIDA registry is expected to provide current information.

Q: Would a vacancy levy hurt investors and developers? A: A vacancy levy raises holding costs for empty properties and therefore affects investors who leave units unlet. It may encourage conversions and leasing activity, which can be positive for cash flow if rental demand exists, but it adds policy risk to investment models. Developers may see opportunities in conversion projects but should expect transitional volatility.

Q: When will any vacancy levy be implemented? A: The IMF has recommended the measure; implementation timing will depend on legislative processes, MIDA’s rollout and local administrative readiness. No definitive timetable has been announced in the IMF submission.

Bottom line for buyers, expats and investors

The IMF proposal to tax vacant homes is a clear signal that Greek and municipal authorities are searching for practical ways to increase housing supply without waiting for new construction to catch up with demand. For property buyers and investors this means a small window where careful positioning can pay off: track MIDA, model vacancy-levy scenarios into returns, and look for renovation incentives tied to income criteria that can improve yields. The concrete data point to watch is the 7.8% rise in housing sales prices in 2025 from Bank of Greece and the upcoming MIDA declarations that will update the 526,154 vacant homes figure from 2021 — those will determine how forceful and effective the policy package will be.