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CIN

Italy's mandatory national ID code for short-term rentals, introduced January 2025, now linked to tax tiers.

Last refreshed: 20 May 2026 · Appears in 1 active topic

Key Question

How does Italy's CIN code connect to the new flat-tax tiers affecting Airbnb hosts?

Timeline for CIN

#420 May

Fed into BDSR portal as Italy's SDEP layer from day one

Nomads & Communities: Italy ships CIN, tax tiers, Milan key-box ban
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Common Questions
What is the CIN code for Airbnb in Italy?
The CIN (Codice Identificativo Nazionale) is Italy's mandatory national registration code for short-term rental properties, introduced in January 2025. Hosts must display it on all listings and at the property; platforms must refuse listings without a valid CIN.Source: Italian Ministry of Tourism
How does Italy's CIN relate to the new STR tax rates in 2026?
The Italy 2026 Budget Law uses CIN registration data to track how many properties a host operates, triggering the 26% flat-tax rate when a host exceeds three properties, versus the 21% rate for smaller operators.Source: Italy 2026 Budget Law
What happens if you list on Airbnb in Italy without a CIN code?
Listing without a CIN exposes hosts to fines from regional authorities, and platforms are required to reject listings that do not display a valid national registration code.Source: Italian STR regulation

Background

The CIN (Codice Identificativo Nazionale) is Italy's mandatory national registration code for all short-term rental properties, which hosts must display on listings and at the property. Introduced in January 2025, the CIN requirement was Italy's initial compliance move ahead of the EU STR Regulation. In May 2026 the CIN gained additional legal significance: the Italy 2026 Budget Law tied the flat-tax rate structure for STR income to whether a host operates above or below the three-property business trigger, with CIN registration as the tracking mechanism .

The CIN is administered through the BDSR (Banca Dati Strutture Ricettive), Italy's national accommodation database. Hosts failing to display their CIN face fines from regional authorities, and platforms are required to refuse listings without a valid code.

Italy's CIN system is one of the more operationally complete SDEP implementations in the EU, providing a template that other member states with fragmented accommodation registries are studying.