CIN — National Identification Code: complete 2026 guide for short-term rentals in Italy

The CIN — Codice Identificativo Nazionale — is the unique code assigned by the Italian Ministry of Tourism to every property used for tourist rentals or accommodation in Italy. Introduced by art. 13-ter of DL 145/2023 and operational from 2024-2026, the CIN replaces and unifies the regional codes (CIR, CIS, CITRA, CITR, IUN, etc.), creating a traceable national system linked to the Accommodation Database (BDSR).

In this guide we cover who must request the CIN, how to get it step by step, where to display it, what the fines are and how to manage it efficiently if you run multiple properties or operate as a property manager.

What the CIN is and what it's for

The CIN is a unique alphanumeric code assigned to each property unit. It serves three purposes: identify the property across public and private portals, verify regulatory compliance (SCIA, safety requirements, insurance), and fight tax evasion and illegal short-term rentals. Every listing on OTAs (Airbnb, Booking, Vrbo), direct websites, agencies and offline channels must display the CIN visibly.

Who must request the CIN

The obligation applies to every unit used for:

• Short-term tourist rentals up to 30 days (Italian Law 50/2017, including private hosts).
• Vacation houses and apartments (CAV), professional and non-professional.
• Hotel and extra-hotel accommodation: hotels, B&Bs, guesthouses, agriturismi, hostels, residences.
• Open-air facilities: campsites, tourist villages, marina resorts.

Ordinary residential leases (4+4 contracts, transient leases over 30 days) and accommodation made available to family or friends free of charge are excluded.

How to request the CIN: step by step

1. Log into the BDSR portal (bdsr.ministeroturismo.gov.it) with the SPID, CIE or CNS of the owner or business holder.
2. Check whether your property is already in BDSR: data flows from the Regions, so if you have a regional CIR you should find it pre-loaded. Otherwise, register it first at regional level (Turismo5, Ross1000 or equivalent regional portals).
3. Fill in or update the required data: exact address, cadastral data (sheet, parcel, sub-unit), number of rooms and beds, classification, owner details.
4. Upload mandatory declarations: safety requirements (extinguishers, CO/gas detectors, certified systems), liability insurance, SCIA where required.
5. Confirm and download the CIN certificate. The code is generated in real time and valid nationwide.

If regional data is already aligned, the whole procedure takes 10 to 30 minutes per unit. For large portfolios the portal supports bulk management but it remains time-consuming.

Mandatory safety requirements to obtain the CIN

Without these requirements the CIN cannot be issued (and during inspections the property is fined):

• Combustible-gas and CO detectors in every unit (where gas systems or boilers are present).
• Certified portable extinguisher, at least one every 200 m² and one per floor.
• Electrical and thermal systems compliant with current regulations, with conformity declarations.
• Liability insurance covering guests (minimum amounts set by ministerial guidelines).

Where to display the CIN

• Outside the property, visible from the street (plate or sticker).
• In every online listing: direct website, OTAs (Airbnb, Booking, Vrbo, Hometogo), social media, marketplaces.
• In rental contracts and any commercial communication about the unit.

Since 2024-2025 OTAs have added a dedicated CIN field on listings and block ads that don't include it after the ministerial grace period.

Fines: up to €8,000 per violation

• Failure to apply for the CIN: €800 to €8,000 per property, scaled to size.
• Failure to display the CIN outside the property: €500 to €5,000.
• Failure to include the CIN in listings: €500 to €5,000 per listing.
• Failure to meet safety requirements: €600 to €6,000, plus suspension of the activity.

Fines are cumulative: managing multiple apartments without a CIN exposes you to very significant amounts. Inspections are run by Municipalities, Local Police, Guardia di Finanza and — on listings — directly by the platforms following ministerial inputs.

CIN vs regional CIR/CIS: what's the difference?

The CIR (Regional Identification Code) is the legacy code issued by each Region. It still exists and is still required on regional portals (Turismo5, Ross1000, etc.) but does not replace the CIN. Practical rule: if you operate in Italy, you need both the regional CIR and the national CIN, and you must show both in listings if your Region requires it.

FAQ — frequently asked questions about the CIN

How much does it cost to obtain the CIN?

Issuing the CIN through BDSR is free. Real costs come from compliance with safety requirements (extinguishers, detectors, insurance) and any optional consultant support.

How long do I have to apply?

The system is fully operational: anyone starting a new activity today must apply for the CIN before publishing any listing. Existing properties have progressive deadlines, but waiting is risky — inspections look at the listing's current state.

Do I need a different CIN for each apartment?

Yes. The CIN is unique per property unit. If you manage 20 apartments you must request 20 separate CINs.

I'm a property manager: should I or the owner request the CIN?

The application lies with the holder of the activity or, in non-professional short-term rentals, with the owner. The property manager can act as a delegate with a written proxy, but legal responsibility stays with the owner/host.

What happens if management changes?

The CIN follows the property, not the manager. When management changes only the holder/PM data in BDSR is updated; the code stays the same.

How to manage dozens of CINs across a multi-property portfolio

For property managers with 20+ units, the real challenge isn't getting the CIN once but keeping data aligned forever: bed-count changes, ownership transfers, insurance renewals, new units, decommissioning. Best practice is in three steps:

1. Keep a centralised property registry in your PMS with CIN, CIR, cadastral data, insurance expiries and certifications.
2. Set up automated alerts at 30 and 7 days before liability insurance, extinguisher and conformity certifications expire.
3. Publish the CIN as a dynamic variable in listings and automated guest messages (e.g. WhatsApp welcome) so changes happen in one place and propagate everywhere.

HopySuite stores the CIN as a structured field per property synced from your PMS and recalls it automatically in pre-arrival and check-in WhatsApp templates and in guest portal links. This drastically cuts the risk of publishing listings or messages with wrong or expired CINs.

Conclusion

The CIN is today the starting point for any short-term rental activity in Italy: without a CIN you can't publish, you can't advertise, and you risk fines up to €8,000 per property. Remember that the CIN sits alongside — it does not replace — Alloggiati Web filings to the State Police and regional statistical flows (Ross1000, Turismo5). Only by combining the three obligations and automating them with a PMS and a communication hub can you really scale a short-term-rental portfolio.