Hi Mark Ross
Thank you for your question.
This Forum is only able to provide guidance to enable you to self-serve.
All the information you have queried both this year and last (please see
BLT - Property Expenses ) are readily available.
Generally speaking, you can deduct business expenses as long as they are incurred wholly and exclusively for business purposes and are not of a capital nature
PIM2010 - Deductions: general rules: applying the wholly & exclusively rule - HMRC internal manual refers.
The main types of expenses that you can claim can be found in
PIM2068 - Deductions: main types of expense: contents - HMRC internal manual.
More information is also available at Work out your rental income when you let property
The SA105 UK property page and notes at
Self Assessment: UK property (SA105) will assist in advising the correct boxes to insert your figures.
We cannot provide advice on customer specific cases. You may wish to use
Contact HMRC or seek professional advice.
Thank you