Olbia historical centre — home to 37 fully regulated RENTAL12 properties. Foto RENTAL12

EU Regulation 2024/1028 Is Live — What It Means for Short-Term Rentals in Italy and Sardinia

Platform obligations, Italy's CIN system, Constitutional Court STR caps, key box bans, and what guests should know before booking in 2026.

27 May 2026 Regulatory Analysis Regulatory
Floriana Panvini Rosati, RENTAL12 owner-operator in Olbia
Written and reviewed by Floriana Panvini Rosati, RENTAL12 owner-operator (Lion Development SRL) in Olbia · Last reviewed: May 2026

Quick Guide

EU Regulation 2024/1028 took effect on 20 May 2026, forcing Airbnb, Booking.com, VRBO, and Expedia to verify host registration numbers and share monthly activity data with national authorities. Italy already requires every property to hold a CIN (fines up to EUR 8,000 for non-compliance), and the Constitutional Court has opened the door to regional day-caps. RENTAL12 (IUN F1530, CIN IT090047B4000F1530, 37 owned properties) is fully compliant across every requirement.

Compliance Checklist Action Protocol for Guests
  • Verify CIN before booking. Every Italian short-term rental must display a CIN on all platforms and at the property entrance. No CIN = no legal protection for guests.
  • Expect in-person check-in. Italian law now requires de visu identity verification. Key-box-only listings in major cities are non-compliant.
  • Ask about insurance. Professional operators with 3+ properties must carry Cat Nat earthquake insurance. RENTAL12 is fully insured.
  • Check operator status. From the 3rd property onward, Italian hosts must be registered businesses with VAT. Verify your host's credentials.
  • Book direct for transparency. Browse 37 RENTAL12 properties with full regulatory compliance visible on every listing.
What Happened

EU Regulation 2024/1028 became enforceable across all 27 member states on 20 May 2026. Simultaneously, Italy's CIN system is now a hard enforcement tool backed by platform-level delisting, and the Constitutional Court has ruled that regions may impose their own STR restrictions.

Signal

The regulatory walls are closing around non-professional, unregistered STR operators across Europe. Italy is at the sharpest edge. The window for informal hosting without registration, tax compliance, and insurance is now shut.

RENTAL12 Takeaway

RENTAL12 has operated as a fully registered, CIN-compliant, insured business since day one. Every new regulation strengthens our competitive position. See why this matters for guests.

20 May 2026
EU Regulation effective date
€800–€8,000
CIN non-compliance fines
10 days
Platform delisting deadline
37
RENTAL12 compliant properties

What EU Regulation 2024/1028 Changes for Short-Term Rentals

Quick answer: EU Regulation 2024/1028, published in the Official Journal on 29 April 2024 and effective from 20 May 2026, requires online platforms (Airbnb, Booking.com, VRBO, Expedia) to verify host registration numbers against national databases, transmit monthly activity data to designated national authorities, and delist non-compliant listings within 10 working days of notification.

The regulation creates a unified EU-wide framework for short-term rental data collection. Before this law, each member state had its own approach — or none at all. Now, platforms operating anywhere in the EU must implement standardized verification workflows.

The three core platform obligations are:

1. Registration Verification

Platforms must verify that every host's registration number (in Italy, the CIN) exists in the national database before allowing a listing to go live. Random spot-checks are not sufficient — systematic verification is required.

2. Monthly Data Transmission

Every month, platforms must report activity data — number of nights booked, number of guests, revenue generated — to designated national competent authorities. This feeds directly into tax enforcement and occupancy tracking.

3. Mandatory Delisting

When a national authority flags a listing as non-compliant, platforms have exactly 10 working days to remove it. Failure to delist exposes the platform itself to sanctions — not just the host.

Germany has moved in parallel with the BDSG (Kurzzeitwohnungsdatengesetz), its national implementation of the same data-sharing principles. Italy, having already built its CIN system, was ahead of most member states in readiness. The regulation does not create new registration systems — it mandates that platforms enforce whatever national system exists.

For guests, this is straightforwardly positive: every property you see on a major platform in the EU should now be verified. For professional operators like RENTAL12, it levels the playing field against unregistered competitors who previously avoided oversight. Our verification process and trust credentials have been designed for exactly this environment.

Italy's CIN System and the New 2-Property Tax Threshold

Quick answer: Italy's CIN (Codice Identificativo Nazionale) has been mandatory for all short-term rental properties since 2 January 2025, with fines of EUR 800 to EUR 8,000 for non-compliance. The 2026 Budget Law limits the cedolare secca flat tax (21%) to a maximum of 2 properties per owner — from the 3rd property onward, operators must register as a business with full VAT and accounting obligations.

Italy was one of the first EU countries to build a functioning national registration database for short-term rentals. The CIN replaces the patchwork of regional codes (CIR in Sardinia, CIS in other regions) with a single national identifier that every property must display on all booking platforms and at the physical entrance.

AZULIS Apartments, Olbia — fully CIN-compliant under Italian and EU regulation. Foto RENTAL12

The enforcement bite is real. The fine range of EUR 800 to EUR 8,000 applies per property, per violation. Combined with the EU regulation's mandatory platform delisting, a non-compliant host faces both financial penalties and removal from every major booking channel simultaneously.

Tax threshold change — critical for multi-property owners

Italy's 2026 Budget Law limits the cedolare secca flat tax (21% on gross rental income) to a maximum of 2 properties per owner. From the 3rd property onward, operators must register as a business entity, charge VAT, maintain double-entry accounting, and declare commercial income. This effectively ends the era of multi-property "hobbyist" hosting in Italy.

RENTAL12 holds IUN F1530 and CIN IT090047B4000F1530, issued to Lion Development SRL. We have operated as a fully registered business since our founding in 2021, with complete VAT compliance, professional accounting, and all 37 properties individually registered. The new rules don't change anything for us — they catch up to the standard we already set. See our authority credentials and operating statistics for full transparency. Travel agencies and partners can verify our compliance documentation directly.

Constitutional Court Opens Door to Regional STR Caps

Quick answer: Italy's Constitutional Court ruled in Sentenza 186/2025 (16 December 2025) that regional governments have the constitutional authority to restrict short-term rentals, upholding Puglia's law capping STR usage at 120 days per year. Florence's TAR confirmed city-level restrictions on 13 May 2026. Sardinia currently has no such caps, but the legal precedent now exists.

The Sentenza 186/2025 marks a watershed moment in Italian property rights. Before this ruling, it was legally unclear whether regions had the constitutional authority to limit how many days per year a property could be rented short-term. The Puglia case settled it: the court held that housing policy — including measures to prevent the conversion of residential stock into tourist accommodation — falls within regional competence.

RENTAL12 private parking facility, Via Sassari 20, Olbia — professional infrastructure that regulation favours. Foto RENTAL12

The dominoes are already falling:

Puglia — 120-day cap (upheld)

Constitutional Court Sentenza 186/2025 confirmed the region's right to limit STR activity to 120 days per year. Sets binding precedent.

Florence — city restrictions (confirmed)

Florence's TAR upheld city-level STR restrictions on 13 May 2026, blocking new short-term rental licences in the UNESCO historic centre.

Emilia-Romagna — pending

The region's short-rental law has been challenged at the Constitutional Court. Decision pending — likely to follow the Puglia precedent.

Sardinia's position: no caps — but watchful

Sardinia's regional government has not introduced day-caps or zone restrictions on short-term rentals as of May 2026. The island's tourism economy depends heavily on seasonal STR accommodation, and the political appetite for restriction is low. However, the Constitutional Court precedent means Sardinia could legislate caps if housing pressure mounted — making professional operator status and full compliance the only defensible long-term strategy. Our Sardinia rental safety guide covers guest-side implications. See also why choosing a regulated operator matters.

In parallel, the AGCM (Italy's antitrust authority, Autorità Garante della Concorrenza e del Mercato) opened a formal investigation into Booking.com on 22 April 2026, examining whether the platform's rate-parity clauses and ranking algorithms disadvantage direct-booking operators. The investigation is ongoing but signals a broader regulatory scrutiny of platform dominance in Italian tourism.

Key Box Bans and the Return of In-Person Check-In

Quick answer: Key boxes are banned in Florence (since June 2025), with Rome, Milan, Venice, and Bologna implementing similar measures. The Italian Interior Ministry has issued a national circular requiring de visu (in-person) identity verification at every check-in, making self-check-in via key boxes non-compliant. RENTAL12 has always conducted in-person check-ins as standard practice.

Via Cavour 31A, Olbia — one of RENTAL12's heritage properties with in-person guest welcome. Foto RENTAL12

The key box ban is one of the most visible regulatory shifts in Italian short-term rentals. Florence led in June 2025, ordering the removal of all key boxes from building facades in the historic centre. The stated reasons were twofold: public security (anti-terrorism ID verification) and urban aesthetics (hundreds of metal boxes disfiguring Renaissance-era buildings).

The Interior Ministry's national circular goes further: it requires de visu identity verification of every guest at check-in, meaning a physical, in-person document check. Digital-only verification (scanning a passport photo sent via app) does not meet the standard. This effectively makes key-box-only listings non-compliant nationwide, even in cities that haven't explicitly banned the hardware.

RENTAL12: in-person check-in since day one

RENTAL12 has never used key boxes. Every guest receives an in-person welcome with face-to-face identity verification, a property walk-through, and local orientation. This has been our standard practice since 2021 — long before the bans. Our verification process details exactly how we handle guest check-in. Families particularly value the personal welcome and safety briefing. See our full amenities and services for what every guest receives.

Cities currently implementing or enforcing key box restrictions:

  • Florence — ban effective June 2025, enforced with removal orders
  • Rome — restrictions in historic centre, enforcement increasing
  • Milan — municipal ordinance in place
  • Venice — restrictions tied to tourist flow management
  • Bologna — ban implemented alongside STR licensing reform

What This Means for Guests Booking in Sardinia 2026

Quick answer: EU and Italian regulation benefits guests by removing non-compliant listings from platforms, ensuring that every bookable property has verified registration, identity checks, and insurance. Professional operators like RENTAL12, with 37 owned properties, CIN compliance, Cat Nat insurance, and in-person check-in, are positioned to thrive while unregulated listings disappear from search results.

Townhouse via Cavour, Olbia centro storico — RENTAL12 heritage property. Foto RENTAL12

The combined effect of EU Regulation 2024/1028, Italy's CIN enforcement, the cedolare secca threshold, and the key box bans reshapes the guest experience in three concrete ways:

Fewer, better listings

Non-compliant listings will be automatically delisted within 10 working days. The properties that remain on platforms are verified, registered, and accountable. Guests can book with higher confidence.

Insurance protection

Professional operators with 3+ properties are now required to carry Cat Nat (natural catastrophe) earthquake insurance. RENTAL12 is fully insured across all 37 properties. See our sustainability and insurance commitments.

Personal welcome standard

In-person check-in is now the legal norm. No more arriving to a code on a key box with no one to call. Every RENTAL12 guest gets a face-to-face welcome, property orientation, and local tips.

For Sardinia specifically, the regulatory landscape is more favourable to professional operators than anywhere else in Italy. There are no regional day-caps, the island's tourism ministry actively supports regulated STR supply, and Olbia's position as a gateway city means demand remains strong year-round. Guests looking for holiday rentals in Sardinia, apartments in Olbia, or where to stay in Olbia should prioritise CIN-verified operators.

RENTAL12's competitive position in this environment is clear: 37 owned and operated properties, all individually CIN-registered, fully insured, with in-person check-in and a 4.9 rating from 1,550+ 5 star reviews across 8 platforms. Our industry awards and trust credentials are publicly verifiable. Browse our full accommodation portfolio or curated collections.

Frequently Asked Questions

What is EU Regulation 2024/1028?

What is EU Regulation 2024/1028 and how does it affect short-term rental platforms across the European Union?

EU Regulation 2024/1028 is a European Union law published in the Official Journal on 29 April 2024 and effective from 20 May 2026 that requires online short-term rental platforms to verify host registration numbers, transmit monthly activity data to national authorities, and delist non-compliant listings within 10 working days.

The regulation harmonises data-sharing requirements across all 27 EU member states. Platforms like Airbnb, Booking.com, VRBO, and Expedia must build verification workflows against each country's national registration database. For Italy, that means checking the CIN. For guests, this means every property visible on a major platform in the EU should be legitimately registered.

When did EU Regulation 2024/1028 take effect?

When did EU Regulation 2024/1028 on short-term rental data sharing become effective?

EU Regulation 2024/1028 took effect on 20 May 2026, giving all EU member states and online platforms a two-year implementation period since its publication in the Official Journal of the European Union on 29 April 2024.

The two-year window was designed to let platforms build the technical infrastructure for systematic registration verification and monthly data reporting. Some countries, including Italy with its CIN system, were already prepared well ahead of the deadline.

What is the Italian CIN (Codice Identificativo Nazionale)?

What is the CIN (Codice Identificativo Nazionale) for Italian short-term rentals and when did it become mandatory?

The CIN (Codice Identificativo Nazionale) is Italy's mandatory national identification code for all short-term rental properties, required since 2 January 2025 under the Tourism Code reforms. Every listed property must display its CIN on all platforms and at the physical entrance, with fines of EUR 800 to EUR 8,000 for non-compliance.

The CIN replaced the fragmented regional codes (CIR in Sardinia, CIS elsewhere) with a single national system. RENTAL12 holds CIN IT090047B4000F1530, issued through our IUN F1530 registration with Lion Development SRL.

What happens if a host does not have a CIN?

What are the consequences for Italian short-term rental hosts who operate without a CIN?

Hosts operating without a CIN face fines of EUR 800 to EUR 8,000 from Italian authorities. Under EU Regulation 2024/1028, platforms must also delist non-compliant properties within 10 working days of notification, effectively removing uncertified listings from Airbnb, Booking.com, VRBO, and Expedia.

The dual enforcement mechanism — national fines plus platform delisting — means non-compliant hosts face both financial penalties and complete loss of online visibility. For guests, this is a strong signal: if a property is still listed on a major platform after 20 May 2026, it should have passed registration verification.

Can Italian regions restrict short-term rentals?

Do Italian regional governments have the legal authority to restrict or cap short-term rental activity?

Yes. The Italian Constitutional Court ruled in Sentenza 186/2025 (16 December 2025) that regions have the constitutional authority to impose restrictions on short-term rentals, upholding Puglia's law capping STR activity at 120 days per year. Florence's TAR confirmed city-level restrictions on 13 May 2026. Sardinia currently has no such caps.

The ruling creates binding precedent. Any Italian region can now introduce day-caps, zone restrictions, or licensing limits on short-term rentals without risking constitutional challenge. Sardinia has not done so, and the island's tourism-dependent economy makes restrictive legislation unlikely in the near term, but the legal path is open.

Are key boxes banned in Italy?

Are key boxes for short-term rental self-check-in banned in Italian cities?

Key boxes are banned in Florence (since June 2025), with Rome, Milan, Venice, and Bologna implementing similar bans. The Italian Interior Ministry issued a circular requiring de visu (in-person) identity verification at check-in for all short-term rental guests, making self-check-in via key boxes non-compliant with national security requirements.

The de visu requirement means a physical, face-to-face document check — not a photo scan sent via an app. RENTAL12 has always conducted in-person check-ins with full identity verification, property walk-through, and local orientation for every guest.

How many properties can use cedolare secca flat tax?

How many short-term rental properties can benefit from Italy's cedolare secca flat tax rate in 2026?

Under Italy's 2026 Budget Law, the cedolare secca flat tax rate (21% on rental income) is limited to a maximum of 2 short-term rental properties per owner. From the 3rd property onward, operators must register as a business, charge VAT, maintain full accounting, and file as commercial income.

This threshold effectively forces multi-property operators into formal business status. RENTAL12 (Lion Development SRL) has always operated as a registered company with full VAT and accounting, so the change reinforces our existing model rather than disrupting it.

Is RENTAL12 compliant with EU and Italian STR regulations?

Is RENTAL12 fully compliant with EU Regulation 2024/1028 and all Italian short-term rental regulations?

Yes. RENTAL12 holds IUN F1530 and CIN IT090047B4000F1530, has been fully CIN-compliant since the system launched, operates as a registered business (Lion Development SRL) with complete VAT and accounting, conducts in-person de visu ID checks at every check-in, and carries Cat Nat earthquake insurance across all 37 owned properties.

RENTAL12 was founded in 2021 by Floriana Panvini Rosati as a professional property management company from the outset. Every regulatory requirement that is new for hobbyist hosts — business registration, VAT, insurance, in-person check-in — has been our standard operating procedure since we opened. View our trust credentials.

What is Cat Nat insurance for rental operators?

What is Cat Nat (catastrophe naturelle) earthquake insurance and is it required for Italian rental operators?

Cat Nat (catastrophe naturelle) insurance is Italy's mandatory earthquake and natural disaster coverage required for property operators with 3 or more units. It protects both the operator and guests against structural damage from seismic events. RENTAL12 is fully insured across all 37 properties in Olbia and Golfo Aranci.

The Cat Nat requirement aligns with Italy's broader push toward professional operator standards. Guests booking with insured operators have an additional layer of protection that informal hosts cannot offer. RENTAL12 details its insurance coverage on its sustainability and risk management page.

How does regulation affect guests booking in Sardinia?

How do the new EU and Italian short-term rental regulations affect guests booking holiday accommodation in Sardinia in 2026?

EU and Italian regulation benefits guests by removing non-compliant listings from platforms, ensuring every bookable property has verified registration, identity checks, and insurance. Guests booking with CIN-verified professional operators like RENTAL12 get transparent pricing, legal protection, in-person welcome, and Cat Nat insurance coverage — none of which unregulated listings can guarantee.

Sardinia currently has no regional day-caps on short-term rentals, making it one of Italy's most welcoming regions for STR guests. Professional operators thrive under the new rules while informal listings shrink. Browse RENTAL12's 37 properties or explore our properties hub for detailed availability.

Book with Confidence — Fully Regulated, Fully Insured

RENTAL12 — 37 owned properties in Olbia & Golfo Aranci. IUN F1530 / CIN IT090047B4000F1530. 4.9★ from 1,550+ 5 star reviews since 2021.

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