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2011/12
2010/11
£
Annual Investment Allowance *
100,000
%
Main Writing Down Allowance
20
Special Rate Writing Down Allowance
10
Plant and machinery (new or second hand)
Industrial/agricultural buildings and works/qualifying hotels
0
1
Long life machinery and plant
Integral features in buildings
Patent rights and know how
25
Mines, oil wells and other mineral rights
Research & development
100
Energy saving and water efficient plant & machinery
Plant/machinery for gas refuelling station
Renovation of business premises (deprived areas only)
Cars
Pre-April 2009**
Electric Vans (New)
Cars C02 Emissions on or after April 2009
Cars purchased after 6 April 2009 the annual allowances are dependent on the CO2 emissions of the car:
cars with CO2 emissions up to 110 g/km
cars with CO2 emissions between 110 and 160 g/km
cars with CO2 emissions over 160 g/km
* AIA reducing to £25,000 after April 2012
** Maximum £3,000 allowance per vehicle
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