Corporation Tax Act 2009 section 266

Meaning of "relevant period" in sections 267 and 268

Section 266 defines the "relevant period" during which certain conditions must be met for furnished holiday lettings to qualify for special tax treatment.

• The relevant period is always a 12-month window used to test whether qualifying conditions for furnished holiday lettings are satisfied.
• If the property was already being let as furnished accommodation before the accounting period, the relevant period is the 12 months ending on the last day of the accounting period.
• If the property begins being let as furnished accommodation during or after the accounting period, the relevant period is the 12 months beginning on the first day of the accounting period.
• Where there is established and continuing letting throughout the accounting period, the general rule applies — again using a 12-month window aligned with the accounting period.