Schedule D, capital gain as sale of "goodwill". https://s3.amazonaws.com/KMGWebsite/IncomeTaxAllocationonSale.pdf

Be sure to include IRS 8594 in the return. 

The Tax Book, or Quickfinder, are both good basic research sources.  One of them should be in your library to research such questions.

Even google has tons of info:

https://search.yahoo.com/yhs/search?hspart=avg&hsimp=yhs-securebrowser&type=8153&param1=e0f50a024ae1...86.0.6536.113&param4=17|US|2.5.127|1.23.0.675&p=sale+of+client+list+tax+treatment

Sometimes things just don't post right

https://search.yahoo.com/yhs/search?hspart=avg&hsimp=yhs-securebrowser&type=8153&param1=e0f50a024ae1...

I think the key is you must hit ENTER at the end of long links or it does what it did. 

Interesting that you say "Even google has tons of info:" and use Yahoo. BINGO!

Obviously I miss the chaos of tax season. ;-}

Hello George4Tacks,

I've been fortunate enough to receive many valuable responses from you that have saved me potentially hours of research on issues I had little or no specific knowledge of at the time I posed my question(s).

You've always lead me down the correct path and explained when necessary how to best proceed. Should I follow through with the sale of my practice this year, I'll be referring the buyer to the community board in hopes they will have the same opportunities to call on you for help.

Don't ever change, George. I'll remember you fondly. AND, should I stay on for another year I would guess there is a pretty good chance that our paths will cross for tax year 2021.

Stay well,

Bob