BIM84050 | Averaging: who can claim
From HM Revenue & Customs · Business Income Manual
S221 Income Tax (Trading and Other Income) Act 2005
An individual may use averaging for profits earned from a qualifying trade, profession or vocation carried on alone or in partnership.
A trade, profession or vocation qualifies if:
Companies, including corporate partners, may not claim averaging nor may any other body which is chargeable to Corporation Tax.
Unincorporated businesses using the cash basis may not claim averaging.