From 20 May 2026, new rules apply if you rent out accommodations for 21 nights or less you must register with Fáilte Ireland and get a registration number, which must appear in all ads or listings. Rental platforms must show this number on listings. What counts as short-term letting? • Renting a property or room for up to 21 nights. • Includes houses, apartments or rooms in a home. • Does not include hotels, B&Bs, etc. Who must register? • Anyone (person or company) renting s