In relation to expenditure incurred during the period of two years beginning with 1 January 2019, section 51A of CAA 2001 (entitlement to annual investment allowance) has effect as if in subsection (5) the amount specified as the maximum allowance were £1,000,000.

Schedule 13 contains provision about chargeable periods which straddle 1 January 2019 or 1 January 2021.