Hi,
You can refer to the guidance below for details about cash basis and traditional accounting:
HS222 How to calculate your taxable profits (2023)
Please also refer to the guidance below for information about what can be claimed as Capital Allowances:
HS252 Capital allowances and balancing charges 2023
Capital Allowances cannot be claimed if using the cash basis, except for cars. If claiming Capital Allowances for an item that was a gift, the market value of the item on the day the business started to use it, should be added to the relevant pool.
Thank you.