I purchased a laptop a year before starting my company, and I use it probably 75% of the time for business use. Can I claim any capital allowances for this laptop?
I’m a sole trader using the cash basis accounting method.
So you say company, but then you mention you’re a sole trader. Which is it? If you purchased the laptop for business, as a sole trader, then under the cash basis, you can claim for the cost of the laptop (less the 25% personal use) in the tax year you bought it. This is not capital allowances - they are available as a form of tax relief if you are using the accruals method of accounting. You just put it through as an allowable expense, not a capital item.
If you bought it before you started trading, then you cannot claim the expense, as you cannot claim for items you already own but which you have brought into use in the business. You can claim for the business proportion of a replacement laptop if you were to buy a new one.
If you have gone from sole trader to a company (i.e. incorporated) then the rules are diffferent.