US to UK money transfers

Can you advise if there are any tax implications of the following: I am a both a UK and US Citizen and resident in the US. I want to transfer money from my US bank account to my UK bank account to then provide a temporary loan to a family member to buy a house. Am I correct in thinking that the only tax implication is interest accruing on the balance in my UK bank account or from the interest on the loan which I would declare on my self assessment tax return whilst the monies were in the UK. Are there any issues transferring it back once the loan is repaid?

Hi,
There is no issue on transferring the capital to the UK and as you say it is only any interest that is generated that you need to declare. For transferring it back, you would need to check with US tax laws.
Thank you.