PER CURIAM.

Norman A. Roberts II, with whom was Tara C. Dugo, for the appellant (plaintiff).Kevin F. Collins, Stamford, for the appellee (defendant).
BEACH, KELLER and PRESCOTT, Js.

The plaintiff, Margaret McGuinness, appeals from the trial court's postdissolution order determining that a provision in a separation agreement executed between the plaintiff and the defendant, John J. McGuinness, and incorporated as part of the judgment of dissolution of the parties' marriage, is nonmodifiable. On appeal, the plaintiff claims that the court erred in concluding that the provision at issue is nonmodifiable on the basis of the court's misinterpretation of the language in the separation agreement. We dismiss the appeal on the basis of our conclusion that the court's postdissolution order regarding the provision at issue is not a final judgment and, therefore, is not subject to appeal at this time.

The following facts and procedural history are relevant here. The plaintiff and the defendant were divorced by a judicial decree on March 3, 2006. The court, Hon. Stanley Novack, judge trial referee, incorporated by reference the parties' separation agreement into the decree. Pursuant to the terms of the separation agreement, the defendant agreed to pay the plaintiff unallocated alimony and child support until February, 28, 2018, or until other conditions arose and terminated the defendant's obligations. The annual amount of unallocated alimony and child support owed by the defendant correlates to his “ ‘gross annual cash compensation from employment.’ ” The separation agreement expressly provides that “in no event shall the [plaintiff] participate in the [defendant's] ‘gross annual compensation from employment’ in excess of $900,000 per annum.” (income cap provision).

In March, 2011, the plaintiff filed a postjudgment motion to modify the unallocated alimony and child support payments on the basis of an alleged substantial change in circumstances; namely, that the defendant's income had substantially increased, the structure of the defendant's income had substantially changed, and the defendant's new employer was providing less detailed reports of his income in comparison to his previous employer. In September, 2013, the plaintiff filed a motion to bifurcate the hearing on her motion to modify, requesting that the court first determine whether the income cap provision is modifiable. The court, Emons, J., granted the motion and held a hearing on that specific issue in November, 2013. At the conclusion of the hearing, the court determined that, pursuant to the terms of the separation agreement, the income cap provision is nonmodifiable. This appeal from that ruling followed.

We begin by discussing the final judgment issue, which we are raising sua sponte because it is dispositive. After reviewing the record, including the transcript of the November, 2013 hearing, which seemed to indicate that there would be further proceedings on the motion to modify, we notified the parties prior to oral argument to be prepared to address whether the appeal had been taken from a final judgment. “The subject matter jurisdiction of this court and our Supreme Court is limited by statute to final judgments.... Our appellate courts lack jurisdiction to hear an appeal that is not brought from a final judgment.... The lack of a final judgment is a jurisdictional defect that mandates dismissal. [General Statutes § 52–263].... Because our jurisdiction over appeals ... is prescribed by statute, we must always determine the threshold question of whether the appeal is taken from a final judgment before considering the merits of the claim....

“[C]ertain otherwise interlocutory orders may be final judgments for appeal purposes, and the courts may deem interlocutory orders or rulings to have the attributes of a final judgment if they fit within either of the two prongs of the test set forth in State v. Curcio, [191 Conn. 27, 31, 463 A.2d 566 (1983) ].... Under Curcio, interlocutory orders are immediately appealable if the order or ruling (1) terminates a separate and distinct proceeding, or (2) so concludes the rights of the parties that further proceedings cannot affect them.”(Citations omitted; internal quotation marks omitted.) Harger v. Odlum, 153 Conn.App. 764, 768–69, 107 A.3d 430, 2014 WL 6435486 (2014).

“The first prong of the Curcio test ... requires that the order being appealed from be severable from the central cause of action so that the main action can proceed independent of the ancillary proceeding.... If the interlocutory ruling is merely a step along the road to final judgment then it does not satisfy the first prong of Curcio .... Obviously a ruling affecting the merits of the controversy would not pass the first part of the Curcio test. The fact, however, that the interlocutory ruling does not implicate the merits of the principal issue at the trial ... does not necessarily render that ruling appealable. It must appear that the interlocutory ruling will not impact directly on any aspect of the [action]....

“The second prong of the Curcio test focuses on the nature of the right involved. It requires the parties seeking to appeal to establish that the trial court's order threatens the preservation of a right already secured to them and that that right will be irretrievably lost and the [parties] irreparably harmed unless they may immediately appeal.... One must make at least a colorable claim that some recognized statutory or constitutional right is at risk.”(Internal quotation marks omitted.) Niro v. Niro, 314 Conn. 62, 68, 100 A.3d 801 (2014).

Here, the court's postdissolution order that the income cap provision is nonmodifiable does not satisfy either prong of the Curcio test. Under the first prong of Curcio, the court's postdissolution order did not “[terminate] a separate and distinct proceeding.” (Internal quotation marks omitted.) Harger v. Odlum, supra, 153 Conn.App. at 769, 107 A.3d 430. The plaintiff raised her claim regarding the modifiability of the income cap provision in connection with her motion to modify. Although the court granted the plaintiff's motion to bifurcate and held a hearing specifically to address whether the income cap provision is modifiable, the court's conclusion regarding the modifiability of the income cap provision did not fully resolve the motion to modify as it did not address whether other provisions of the unallocated alimony and child support award are modifiable. Therefore, we conclude that the court's postdissolution order did not terminate a separate and distinct proceeding, but was rather “ ‘a step along the road’ ”; Niro v. Niro, supra, 314 Conn. at 68, 100 A.3d 801; in resolving the plaintiff's motion to modify.

Under the second prong of Curcio, the court's post-dissolution order did not “so [conclude] the rights of the [plaintiff] that further proceedings cannot affect them.” (Internal quotation marks omitted.) Harger v. Odlum, supra, 153 Conn.App. at 769, 107 A.3d 430. The trial court has not fully disposed of the plaintiff's motion to modify, a final determination of which remains pending before the trial court. Any future proceedings concerning the court's resolution of the plaintiff's motion to modify will further implicate the rights of the plaintiff. Therefore, we conclude that the court's postdissolution order did not so conclude the plaintiff's rights to obtain modification of the unallocated alimony and child support payments that further proceedings cannot affect them.

The appeal is dismissed.