Tonyv

Dear to whom this may concern. I just have a capital gains tax question with regards to a property my sister sold recently but I was down as joint owner. Back in 2008 my sister needed help getting a mortgage so I agreed to help her get her flat by putting my name down as joint owner despite the fact she paid the mortgage on her own and later in 2017 letted the property out (again without me receiving any gain.) My sister has now sold the property recently and her solicitor requested I sign a declaration that she would be sole beneficiary of the sale of which I signed and my sister received all proceeds from the sale. My sister just filed the sale with HMRC online and received her capital gains tax calculation and has paid it, however do I still need to do anything despite she filed the CGT in her name and was sole beneficiary of the sale? I'd be most grateful for an update as I don't wish to miss any possible deadline and if I do need to submit anything would it be as £0.00? Thank you