Main Capital and Other Allowances
  2011/12
© Copyright 23rd March 2011, subject to final legislation. For information only. Always seek professional advice before acting.
Plant & machinery 100% annual investment allowance (first year) £100,000
Plant & machinery (reducing balance) pa 20%
Patent rights & know-how (reducing balance) pa 25%
Certain long-life assets, integral features of buildings (reducing balance) pa 10%
Energy & water-efficient equipment 100%
Zero emissions goods vehicles (new) 100%
Qualifying flat conversions, business premises & renovations 100%
Motor cars: Expenditure on or after 1/4/09 (corporation tax) or 6/4/09 (income tax)
- CO2 emissions of 110g/km or less* 100%
first year
- CO2 emissions of 111–160g/km 20%
reducing balance
- CO2 emissions of 161g/km or more 10%
reducing balance
* If new, not secondhand.  
Research and Development:  
- Capital expenditure 100%
- Revenue expenditure – small/medium-sized companies 200%
- Revenue expenditure – large companies 130%