What is Slump Sale? myITreturn Helpdesk Updated May 20, 2016 11:31 Follow Text coming shortly. Capital Gain- Slump Sale, Slump Sale, Income tax return This page explains about the Capital Gain [Slump Sale - Details]. Have you filed your Income-tax return yet? Click here to start now. Related articles What is Tax Implication of Long term Capital Gain and Short Term Capital Gain? How to add Capital Gain [Slump Sale]? How to add Capital Gain [Securities]? What is Capital Gain [Slump Sale]? It is taxable at what rate ? Comments 0 comments Please sign in to leave a comment.