How do I claim Annual Investment Allowance?
Claim AIA through your business tax return. Sole traders use Self Assessment, partnerships use their partnership return, and limited companies use a Company Tax Return with a separate capital allowances calculation.
These answers provide general information, not advice tailored to your circumstances. Rules can change and exceptions may apply — speak to the CASS team before making a tax, accounting or financial decision.
Keep the evidence for your claim
AIA is claimed through your business's tax return. A sole trader claims through Self Assessment, a partnership through its partnership return, and a limited company through its Company Tax Return. Companies must include a separate capital allowances calculation. Keep purchase invoices, finance agreements and details of when the expenditure was incurred. Your accountant also needs to know whether the equipment is used privately and whether related businesses affect the allowance available. AIA must relate to the period in which the qualifying expenditure is incurred. Recording equipment in your accounts does not by itself complete the tax claim. CASS can calculate the relief alongside your wider tax position.
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