CGT - which months count for private residence relief

Hi, When calculating private residence relief for a property I lived in as my main residence and then rented out – how does calculating the months work if you don't have full calendar months? For example, let's imagine the house is rented out from Jan 5th - would that month (January) count as a month of private residence relief or not, since it was partially rented out and also partially lived in before renting out? (I've checked the PRR guidance but couldn't find information on this.)

Hi,

You will treat each month as a full month for working this out.

Thank you.