Airbnb and Short-Term Rental Rules Ireland: Planning Permission, the Fáilte Ireland Register, and Why the RPZ Loophole Is Closed
Airbnb and Short-Term Rental Rules Ireland: Planning Permission, the Fáilte Ireland Register, and Why the RPZ Loophole Is Closed
The most common question from Irish property investors who have modelled the numbers on long-term letting and found the post-tax yields compressed is whether they can simply run the property as an Airbnb instead. The revenue potential of short-term letting in Dublin, Galway, or Cork looks considerably more attractive than the 52.35% tax rate applied to Case V rental profit.
The short answer is: for a dedicated investment property located inside a Rent Pressure Zone, which now covers the entire country, the answer is almost certainly no — unless you have planning permission that local authorities almost never grant.
Here is the legal framework, the December 2026 registration deadline, and what the tax treatment actually looks like if you do run a legitimate short-term let.
The Planning Permission Requirement in RPZs
Since 2019, using a residential property for short-term tourist letting in a Rent Pressure Zone requires explicit change-of-use planning permission from the local authority.
Prior to the 2025 nationwide extension of RPZs, there were some geographic areas outside the designated zones where this restriction did not apply. That avenue is now closed. As of 2025, RPZs cover the entire country. Every property in Ireland in a residential area is now subject to the planning requirement for short-term letting.
What this means in practice:
An investor purchasing a Dublin 2 apartment to operate as an Airbnb is engaging in a change of use from residential to tourist accommodation. Planning permission must be obtained before operating. Without it, the activity is an unauthorised development under the Planning and Development Act.
Local authorities in Dublin, Cork, Galway, Limerick, and other high-demand urban areas have consistently refused the vast majority of these applications. The stated reason is simple: every residential unit converted to tourist accommodation removes it from the long-term rental pool. Local authorities are required by national policy to prioritise long-term residential use in RPZs. Approval rates for change-of-use applications in urban RPZs are exceptionally low.
Enforcement: Local authorities conduct active enforcement operations against unauthorised short-term lettings, particularly in Dublin city centre. Platforms like Airbnb are required under the EU's Short-Term Rental Regulation to verify that hosts in regulated areas have appropriate permits. Planning enforcement actions can result in fines, prohibition orders, and orders to regularise the use (i.e., revert to residential letting).
The 90-Day Rule for Your Principal Private Residence
The planning requirement does not apply to homeowners letting their own home (their principal private residence) for short periods while they are absent. A homeowner can:
- Let out a room in their home while they live there: no planning permission required, no day limit
- Let out their entire primary residence while they are absent: up to 90 days per calendar year without planning permission
Once you exceed 90 days of whole-home rental while absent, you require planning permission, even for your own home.
This 90-day rule is how many homeowners legally supplement their income through Airbnb. It is not a route available to investors with dedicated investment properties — those properties are not the investor's principal private residence.
The Fáilte Ireland Short-Term Letting Register
A national short-term letting register managed by Fáilte Ireland is scheduled to open on December 1, 2026, with mandatory registration for all hosts by December 31, 2026. This covers any accommodation let for 21 consecutive nights or fewer, regardless of platform.
Registration will require:
- The property address and registration number
- Evidence of planning permission for properties in RPZs that are not the owner's principal residence
- Compliance with any applicable local authority conditions
Once mandatory registration is in force, platforms including Airbnb, Booking.com, and Vrbo will be required to verify that all listed properties in Ireland carry a valid Fáilte Ireland registration number. Listings without valid registration numbers will be removed.
This is the final structural closure of the short-term letting loophole for Irish investors. The combination of the planning permission requirement (which local authorities refuse in most RPZ cases) and the mandatory registration system (which requires proof of planning permission) means that operating a dedicated investment property as a short-term let inside an RPZ will be effectively impossible for the vast majority of properties.
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The Tax Treatment of Short-Term Letting Income
For the properties that can legally operate as short-term lets, the tax treatment is meaningfully different from long-term residential rental income.
Short-term guest accommodation income is not classified as Case V rental income. Revenue instead assesses it under:
Case I (Trading Income): If the operation exhibits the characteristics of a trade — high-frequency turnover, provision of meals, daily cleaning, active management comparable to a commercial guesthouse — it is taxed as business income. Trading income allows more generous expense deductions, including pre-trading expenditure going back three years.
Case IV (Miscellaneous Income): This is the default classification for most occasional Airbnb hosts whose activity does not rise to the level of a trade. Case IV income is more restrictive on allowable deductions. Pre-guest expenditure (costs incurred before the first guest) is strictly non-deductible under Case IV.
Why this matters for tax planning: Under Case V (long-term residential letting), you claim 100% mortgage interest, management fees, insurance, and wear-and-tear allowances. Under Case IV (short-term letting), the deductibility framework is more restricted. The higher gross revenue from short-term letting does not automatically translate to higher net income after the different tax treatment is applied.
EU DAC7 reporting: Since January 2023, all short-term rental platforms including Airbnb, Vrbo, and Booking.com are legally required under the EU DAC7 directive to report host income directly to Revenue. Every euro you earn through these platforms is visible to Revenue. There is no practical avenue for non-disclosure.
The Legal Alternatives for Investors Seeking Higher Yields
If the short-term letting strategy is closed for most investment properties, what are the legitimate alternatives for investors seeking above-2% revenue growth?
New-build apartment development (post-June 2025 commencement): As noted in the RPZ rules, newly built apartments with a commencement notice after June 10, 2025 are exempt from the 2% cap and can peg increases directly to CPI. Investing in new-build apartments under forward-purchase arrangements potentially captures this exemption.
Student-specific accommodation (SSA): Purpose-built student accommodation is treated separately from general residential letting under the 2026 legislative reforms and may have different RPZ parameters. This is institutional territory, not typically relevant to private investors, but worth knowing.
Properties outside the standard RPZ framework: Very rural properties, properties with a BER improvement of 7+ levels (substantial change triggering a rent reset), and properties vacant for 24+ months may offer limited rent-reset opportunities.
Commercial property strategies: Retail units, offices, and mixed-use commercial properties operate entirely outside the residential RPZ framework. Yields can be higher and the legislative restrictions are different, though the financing terms, tax treatment, and management requirements are also different.
Before You Buy an Investment Property for Short-Term Letting
The combination of the nationwide RPZ, local authority enforcement posture, mandatory Fáilte Ireland registration, and EU DAC7 income reporting makes the "buy an apartment and run it as an Airbnb" strategy essentially unworkable for properties you do not personally occupy as your primary residence.
Before any acquisition intended for short-term use:
- Confirm the property's RPZ status (all of Ireland in 2026)
- Check whether any prior planning permission for tourist accommodation exists
- Assess whether the 90-day primary residence exemption could apply to your situation
- Model the tax outcome under Case IV rather than assuming Case V deductibility
For investors who entered the Irish market in 2019–2023 on the assumption that short-term letting could always supplement or replace long-term letting income, the 2026 regulatory environment has materially changed the calculus. The Ireland Investment Property Guide covers all of these structural changes with specific guidance on how to legally maximise returns within the current framework.
Summary
The short-term letting route for Irish investment properties is functionally closed in RPZs for most operators:
- Planning permission is required for dedicated investment properties in RPZs, and local authorities routinely refuse it
- The 90-day exemption applies only to the homeowner's primary residence, not to investment properties
- The Fáilte Ireland mandatory register (December 2026) will require proof of planning permission for RPZ listings
- Short-term letting income is taxed under Case I or Case IV, not Case V — with different and often less favourable deductibility rules
- EU DAC7 reporting means all platform income is visible to Revenue
This does not mean Irish investment property is unviable. It means the strategy must be built around long-term residential letting, not around using short-term platforms to bypass the rent cap.
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