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CIN, regional codes and short-term rentals: what changes in 2026

Three points must be kept separate: Italy’s national identification code (CIN) is additional to any regional code; tourist rentals operated as a business require a SCIA; and, from the 2026 tax year, the national threshold triggering the presumption of business activity has been lowered.

In brief: already having a CIR, IUN, CITRA or another regional code does not remove the CIN requirement. Where the Region requires its own code, the regional registration normally comes first, followed by the CIN application through the BDSR database.

1. The CIN and regional codes coexist

Italy’s Ministry of Tourism FAQs, updated in 2026, confirm that the CIN requirement applies to hotel and non-hotel accommodation, tourist rentals and short-term rentals. If a Region or Autonomous Province also requires its own identification code, the two codes remain separate and must both be managed under their respective rules.

The CIN must also be shown in listings and, where required, displayed outside the building, subject to any applicable planning and heritage restrictions.

2. Business-run rentals require a SCIA

The national CIN rules require a SCIA when a tourist or short-term rental is operated as a business. The SCIA must be coordinated with regional and municipal requirements: some Regions also require a CIA or another communication for non-business activity.

3. The property threshold changes from 2026

Italy’s 2026 Budget Law amended Article 1(595) of Law no. 178/2020, replacing “four apartments” with “two apartments”. In practical terms, where more than two apartments are used for short-term rentals during a tax year, the activity is presumed to be carried on as a business.

4. Safety requirements also matter

For units used for tourist or short-term rentals, the national CIN rules are linked to specific safety requirements. The Ministry’s FAQs refer, among other matters, to combustible-gas and carbon-monoxide detectors and portable fire extinguishers in the cases provided for by law, including non-business rentals. Accommodation businesses such as B&Bs and Affittacamere are instead subject to the safety duties applying to their particular category.

Practical checks

  • identify the correct category: accommodation business or rental;
  • check which procedure the Region and Municipality require: SCIA, CIA or communication;
  • establish whether a regional code must be obtained before the CIN;
  • check the display and advertising rules for each code;
  • consider whether the number of units triggers business status;
  • verify safety, public-security, tourism-statistics and tourist-tax duties.
AIBBA note: this is general information. Applying the rules to an individual property requires checks on the Region, Municipality, number of units, services offered and the way in which the activity is actually organised.

Main sources