Tax relief on late invoices received after property business has ended

My tenant vacated a leasehold property I own as a second property at the end of March 2025. I am proposing to sell this property in the tax year 2025/26. I intend to claim on my self assessment form for the service charge I paid in the tax year 2024/25. I work on a cash basis. My question is....I will receive an updated invoice to this 2024/25 service charge from the freeholder in September 2025 which normally adds to the original service charge amount. As this is an addendum to the 2024/25 service charge can I add this to my 2024/25 self assessment form even though it has been declared to me by the freeholder in the tax year 2025/26?

Hi chris,
This charge would be included in 24/25 tax year as it is the tax year the charge relates to and your property rental business will have ceased in 24/25.
Thank you.