Main capital allowances


Allowance %
Plant and machinery  
- annual investment allowance £50,000 100
- certain energy efficient plant, including low emission cars 100
- first year allowance for qualifying expenditure in 2009/10 40
- writing down allowance: general 20
- writing down allowance: long life assets 10
- WDA: features integral to a building 10
- cars with CO2 rating up to 160g/km * 20
- cars with CO2 rating over 160g/km * 10
 
* these rules apply to cars purchased on/after 1 April/6 April 2009. The old system of cheap/expensive cars has been abolished, but transitional rules cover existing expenditure.
Industrial building allowances are being phased out: 4% in 2007/08; 3% in 2008/2009; 2% 2009/10; 1% 2010/2011; nil thereafter.