Hi tableandchairs,
Please to Property Income Manual
PIM2510 which covers a letting that ceases which later re-commences and losses.
You would need to consider the facts set out, in your circumstances it is possible that your business had not ceased but was temporarily unavailable while work on repairs or alterations were carried out.
You can claim expenses for the property repairs when declaring your rental income for the 2022-23 tax year, we would suggest that you retain receipts/invoices of your repairs if required at a later date.
Losses can only be carried forward and set against future profits of the same business, this is dependent on whether the original business resumed or there had been a cessation followed by a new business commencing, so if you are treating it as a temporary pause then losses would be allowable.
Thankyou.