Successor liability: successors and estate remain liable for unpaid tax, interest and penalty upon business transfer or termination. Where a taxable person dies, continues business or discontinues it, successors or the legal representative are liable for tax, interest and penalty; partition of an HUF or association renders members jointly and severally liable for liabilities up to partition; upon firm dissolution former partners are jointly and severally liable for liabilities up to dissolution; termination of guardianship or trust makes the ward or beneficiary liable for liabilities up to termination. All provisions are subject to the Insolvency and Bankruptcy Code exception.