Loss in 24-25 - how to record in 23-24 return

I had a huge expense for repairs in May and am now selling the property so only had a short tax year of April-August. My tax return for 23-24 is calculated as being about £1700 but obviously in 24-25 it's going to be zero as a huge loss (£6000 repair bill, only 5 months rental income etc) Is there any way to do a set of accounts/return that includes the whole 17 months; or to somehow put the loss of 24-25 into the 23-24 return to offset the tax bill? Or do I wait until next April and a refund will be possible?

Hi Clare,
Thanks for your question.
Unfortunately, you would have to complete two separate Tax Returns covering the periods 6th April 2023 to 5th April 2024, then a partial year Return up to the closing of your rental business in August.
Also, you would not be able to offset such losses against a previous year, only against a future year or against general income for that year, as per PIM4205 attached:
PIM4205 - Losses: overview.
Thank you.