BIM60335 | Transactions in land: Period in which the gain is taxed
From HM Revenue & Customs · Business Income Manual
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The gain is taxable under the transactions in land provisions as income of the person chargeable (see and ) in the:
tax year in which the gain arises (where the person liable for the tax is an individual, a trustee or a personal representative), or
accounting period in which the gain arises (where the person liable for the tax is a company).
For guidance on how to compute the amount to be taxed, see .
For details of where the tax due may be recovered from another person, see .