BIM60135 | Measuring the profits (particular trades): land: trading transactions: timeshare schemes
From HM Revenue & Customs · Business Income Manual
The precise form of timeshare agreements differs from one scheme to another.
In general, however, the timeshare agreement will give the purchaser exclusive use of furnished accommodation for a particular week or weeks every year for an agreed number of years in return for a lump sum. There is also normally an obligation to pay an annual service charge to a management company for the duration of the agreement.