- 12 - particular year.” Erickson v. United States, 159 Ct. Cl. 202, 309 F.2d 760, 767 (1962); see Naftel v. Commissioner, 85 T.C. 527, 533 (1985). An agreed or stipulated judgment is a judgment on the merits for purposes of res judicata. Baker v. IRS, 74 F.3d 906, 910 (9th Cir. 1996), and cases there cited. It follows that, for res judicata purposes, the decision incorporates those elements that the parties have settled by stipulation as well as those that have been redetermined by the Court. Res judicata is essentially a court-created rule. Commissioner v. Sunnen, 333 U.S. at 597. Although the general outlines of the rule are relatively straightforward, the details applicable in certain cases may be quite intricate. See, e.g., the discussion in Hemmings v. Commissioner, 104 T.C. at 230-235. In addition, the Congress sometimes enacts legislation that overrides or modifies res judicata. See, e.g., Burke v. Commissioner, 105 T.C. at 47 (opinion of the Court), 52 (Chabot, J., concurring), 62-63 (Swift, J., concurring in the result only). B. Innocent Spouse Under the law before the 1998 Act, the cause of action in the 1989 case included the possibility of innocent spouse relief. Thus, but for the 1998 Act, the resolution of the 1989 case by entry of decision which became final would have precludedPage: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 NextLast modified: November 10, 2007