Making a loss - when is the loss factored into the tax bill?

I made a £10,000 loss (I fitted double glazing) yet still got a tax bill to pay for the recent tax year. Would I be correct in thinking the entire loss will be carried forward to 2024/25? I would also be interested on any view on the fact I declared the fitting of double glazing as an improvement, instead of a capital expense (which I did after a previous thread here).. I wonder if this is optional? Or could it be reversed at any point? (If I sell up this year it would benefit me if it was a capital expense)

Hi,

You can carry forward property losses indefinitely to be used agains a proift in a future year. You can see guidance here:

PIM4210 - Losses: setting losses against future profits.

Capital, and, or revenue expenses can not be optional. An improvement is capital and cannot be revenue. Please see guidance here:

Capital versus revenue expenditure toolkit

Thank you