I was unable to let my property between 5th January 2018 and 25th April 2018 and was obliged to pay council tax myself during that period.
Since 25th April 2018 the property has been re-let.
I now understand that council tax paid whilst the property was empty is an allowable expense. I was unaware of this at the time I submitted the 2017/2018 property income tax return. Can I now include that expense in my 2018/2019 return ?