Claim capital allowances
100% first-year allowances
If you buy plant or machinery that qualifies for 100% first-year allowances you can deduct the full cost from your profits before tax.
You can claim 100% first-year allowances in addition to another first-year allowance or annual investment allowance (AIA), as long as you do not claim both for the same cost.
What qualifies
You can only claim 100% first-year allowances on certain plant and machinery, if it’s bought new and unused.
If you buy it before April 2027, you can claim 100% first year allowances on:
- electric cars and cars with zero CO2 emissions
- equipment for electric vehicle charging points
If you bought it before April 2025, you can claim 100% first-year allowances on:
- plant or machinery for gas refuelling stations, for example, storage tanks, pumps and refuelling equipment for gas, biogas and hydrogen
- zero-emission goods vehicles
If you’re a company investing in plant or machinery
You can claim 100% first-year allowances for plant and machinery for use in a special tax site in UK Freeports or Investment Zones.
You may be able to claim full expensing or the 50% first-year allowance as well. But you cannot claim more than one allowance against the same expenditure.
You cannot normally claim on items your business buys to lease to other people or for use within a home you let out.
How to claim
Claim on your tax return.
If you do not claim all the 100% first-year allowances you’re entitled to, you can claim the part of the cost you have not claimed using writing down allowances.