Digging further into this and all I keep seeing is that the spend (in this case on a computer) can be 100% offset against the taxable profits of the business, rather than my original assumption which was that the purchase price is effectively taken from the final tax bill.
If my taxable profits came to 5k, my Corp tax bill would be 1k (20%). My hope was that the 1k purchase price of the computer would reduce the tax bill to zero.
However, my fear is that I would only be allowed to take the 1k purchase price away from the 5k taxable profits i.e. leaving me with taxable profits of 4k and a bill of 800 quid.
SPending a grand on a computer would therefore save me 200 quid rather than the full grand? Ignoring VAT in all of this.
I’m hoping the former is correct but I guess its likely to be the latter?