Main capital allowances
| Allowance % | |
|---|---|
| Plant and machinery | |
| - Annual Investment Allowance (AIA): £500,000 | 100 |
| - certain energy efficient plant, including cars with emissions up to 95g/km | 100 |
| - writing down allowance: general pool | 18 |
| - writing down allowance: special rate pool | 8 |
The special rate pool includes long life assets, integral plant in buildings, thermal insulation and cars with CO2 emissions over 130g/km. The general pool contains other plant and machinery. The rate of AIA was £250,000 before 1 April 2014 (6 April for income tax) and is scheduled to reduce to £25,000 on 1 January 2016. Care is needed where a period straddles these changes of rate.