Capital allowances

Based on CO2 emissions

The table below shows the WDA allowance as a percentage based on the official CO2 g/km figure for the vehicle in the pool

2017/182018/192019/202020/21
100% First year allowance2017/1875 or below2018/1950 or below2019/2050 or below2020/2150 or below
18% WDA - Main pool2017/1876 to 1302018/1951 to 1102019/2051 to 1102020/2151 to 110
8% WDA - Special pool2017/18Above 1302018/19Above 1102019/202020/21
6% WDA - Special pool2017/182018/192019/20Above 1102020/21Above 110

For corporation tax purposes the thresholds above apply to cars purchased on or after 1st April whereas for income tax purposes new tax years start on 6th April.

Finance Bill 2018-19 reduces the special pool rate from 8% to 6%

Electric charge-points are eligible for 100% FYAs until April 2023 (Finance Bill 2018-19)

Capital allowances for vans

A van with zero CO2 emissions is eligible for a 100% first year allowance.

Any other van should be treated as plant and machinery and allocated to the main pool, where it will be eligible for writing down allowances at 18%.

Annual Investment Allowance

The Annual Investment Allowance of £200,000 will increase to £1,000,000 for expenditure in the period 1st January 2019 to 31st December 2020 (Finance Bill 2018-19)

Where qualifying expenditure exceeds the annual cap, tax relief will be given under the normal capital allowance regime via the main or special rate pools, with writing down allowances being given at the appropriate rates.