2024-25

2023-24

Plant and Machinery

Main writing down allowance

Long life assets, integral fixtures

Full expensing - 100% FYA (companies only)

Full expensing - Special Rate FYA (companies only)

18%

6%

100%

50%

50%

18%

6%

100%

50%

50%

R&D Intensive SME deduction rate

R&D Merged Scheme

Structures and buildings allowance

Annual Investment Allowance (AIA)

186%

20%

3%

 £1,000,000

186%

-

 3%

 £1,000,000

Cars

New and unused, CO2 emissions are 0g/km (or car is electric)

Second hand electric car

New or second hand, CO2 emissions are 50g/km or less

New or second hand, CO2 emissions are over 50g/km

100%

18%

18%

6%

100%

18%

18%

6%