Please check my CGT sums: private residence relief (PRR)

WittyUserName

I’m selling a property that was my main home but was rented out for a couple of years. 

Used the gov calculator to work out the CGT but got stuck where the calc supplies the capital gain and asks me to enter a value for PRR

I need help working the sums so I understand how PRR is applied. 

I’m not a maths head (can barely count) so please work it out step by step for me…

- Property purchase price £150k 
- Property sale price £300k
- Capital gain £150k 
- Purchased and occupied as main home May 2009 to March 2022 
- Rented out April 2022 to December 2023
- Sold January 2024 

Is this working correct:
- Months of ownership minus months of absence = x 

- Then x divided by months of ownership = y%

What value should I put into the gov calc as PRR, is it y% of £150k (the capital gain)? 

PS: to help others, while I was researching CGT I found this answer to the question of whether paying a mortgage early redemption charge qualifies as relief:

https://community.hmrc.gov.uk/customerforums/cgt/b86a9865-54df-ed11-9ac4-00155d9771aa#:~:text=Hi%20stringy%2C,for%20rental%20or%20capital%20gains.&text=Thank%20you

[Deleted User]

Owned 176 months. 

Main residence 156 months and add 9 (main residence at some point) = 165

PPR relief 165/176 x £150000 = £140625. 

Presumably all legal
costs of acquisition and sale and improvement costs all deducted to arrive at gain. 

WittyUserName

[Deleted User] said:

Owned 176 months. 

Main residence 156 months and add 9 (main residence at some point) = 165

PPR relief 165/176 x £150000 = £140625. 

Presumably all legal
costs of acquisition and sale and improvement costs all deducted to arrive at gain. 

Thanks, so I enter £140,625 in the field for PRR

Yes I entered the allowable deductible costs for conveyancing etc. 

The ‘last 9 months’ rule is a helpful bonus! 

Thank you 

[Deleted User]

WittyUserName said:

[Deleted User] said:

Owned 176 months. 

Main residence 156 months and add 9 (main residence at some point) = 165

PPR relief 165/176 x £150000 = £140625. 

Presumably all legal
costs of acquisition and sale and improvement costs all deducted to arrive at gain. 

Thanks, so I enter £140,625 in the field for PRR

Yes I entered the allowable deductible costs for conveyancing etc. 

The ‘last 9 months’ rule is a helpful bonus! 

Thank you 

That is correct. Just check your dates to the nearest month.