A slump sale is a form of corporate restructuring where an entire business undertaking is transferred from one entity to another as a going concern, for a lump sum consideration, without assigning individual values to assets and liabilities. It is governed under Section 2(42C) of the Income Tax Act, 1961 and relevant provisions of the Companies Act, 2013.

In a slump sale:
- The entire business unit is sold, not just individual assets.
- The transaction includes assets, liabilities, employees, contracts, and licenses.
- It must be on a "going concern" basis, meaning the business continues to operate seamlessly after the transfer.

Slump sale is one of the methods of business restructuring. Under this method, certain assets and liabilities are sold together for a lump sum sale consideration without determining the individual values of assets and liabilities sold.