Hello Everyone. 

Hope you all are having a good easter. 

A quick question, I have a client who is living in the UK and took the mortgage in 2011 and now selling his house and have gain of $500k plus due to the interest rate. My question is, where and how can I report this gain. I was thinking online 21 as other income, any suggestions, please. Additionally, I was reading that this is also subject to net investment tax, how can I make this subject to this tax as well in the system. 

Thank you in advance!