CapitalPains87

Hoping somebody can help as rather confused about capital gains tax situation my parents have got caught up in! Basically my parents wanted to invest in an apartment back in 2015 as secondary home (to be closer to their ill parents) but could not get a mortgage to purchase property. In order to help them and for me to get on the property ladder I got a mortgage and bought the property for 120k. My parents then used the property for periods of time whilst helping care for my grandparents and my parents would cover mortgage costs etc... Eventually I wanted to buy my own property where I lived so I sold this apartment to my parents for £66,000 in 2022 (not at market value which was probably around £125k but as parents had transferred me for mortgage payments the actually amount they were paying was much higher than £66,000 in effect). Then in 2022 my parents sold the apartment for £141,000. Can anybody explain what this means for capital gains tax as my parents have now been sent a letter saying CGT may be due? Is it based on the profit made from value of property when I sold to them in 2022 so if value was 125k and sold at £141k then would be CGT on 16k profit? Many thanks 

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