“lease” includes an underlease, sublease, tenancy or licence and an agreement for any of those things,

“notional business”, in relation to a company, means the business the profits or losses of which are determined, in relation to the company, under section 1259 of CTA 2009 (calculation of firm’s profits and losses),

“plant or machinery” has the same meaning as in Part 2 of CAA 2001, and

“relevant capital allowance” means an allowance under that Part in respect of expenditure incurred on the provision of plant or machinery wholly or partly for the purposes of the leasing business.