Corporation tax & Main capital allowances

Corporation tax
To 31.03.09 To 31.03.08
Small companies rate (£0-£300,000) 21% 20%
Marginal relief £300,001-£1,500,000 £300,001-£1,500,000
Full rate (£1,500,001+) 28% 30%

Main capital allowances
Plant and Machinery 2008-2009 2007-2008
Writing down allowance (reducing balance) 20% pa 25% pa
Long life assets / integral features and thermal insulation 10% pa -
First year allowance (FYA) for expenditure incurred by small/medium-sized businesses* 50%/40%
* For 2008/09 FYA replaced by new annual investment allowance of 100% pa, limited to first £50,000 of expenditure in general pool.
Motor Car
Writing down allowance (reducing balance) 25% pa, max £3,000 pa
New car registered on or after 17.4.02 emitting up to 120 g/km of CO2 emissions* or electrically propelled 100% 100%
* Reduced to 110g/km for 2008/09, with transitional rules for leasing contracts before 1 April 2008.
Enterprise Zone Buildings and Scientific Research 100% initial allowance
Industrial and Agricultural Buildings 2008-2009 2007-2008
Writing down allowance (straight line) 3% pa 4% pa