- 5 - liability for the resulting tax is joint and several. See also sec. 1.6013-4(b), Income Tax Regs. But the IRS may relieve a taxpayer from joint and several liability under section 6015 in certain circumstances. Section 6015(b): Full or Apportioned Relief Section 6015(b) provides full or apportioned relief for “an understatement of tax”. Sec. 6015(b)(1)(B) and (2). Because petitioner’s liabilities resulted from underpayments of the tax shown due on petitioner’s joint returns, not understatements of tax, petitioner does not qualify for relief under section 6015(b). See Washington v. Commissioner, 120 T.C. 137, 146 (2003). Accordingly, respondent’s determinations are sustained to the extent that they deny relief under section 6015(b) for each year. Section 6015(c): Relief for Taxpayers No Longer Married, Legally Separated, or Not Living Together Section 6015(c) provides relief from joint and several liability for spouses who filed a joint return if they are no longer married, are legally separated, or have lived apart for a 12-month period. Section 6015(c)(1) provides proportionate relief for “any deficiency which is assessed with respect to the return”. Relief is not available under section 6015(c) with respect to an unpaid liability for the tax reported on the return. See id.Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: March 27, 2008