James Adair brought this action under the Fair Debt Collection Practices Act (“FDCPA”), 15 U.S.C. § 1692 et seq. He contends that Michael Sherman and his law firm, Sherman & Sherman (collectively “Sherman & Sherman”), overvalued their secured claims in Mr. Adair’s Chapter 13 bankruptcy proceedings. The district court held that Mr. Adair’s action was barred because he had failed to object to the valuation of the claim in the bankruptcy court. For the reasons set forth in the following opinion, we affirm the judgment of the district court.
*893 I
BACKGROUND
Because the district court dismissed Mr. Adair’s complaint for failing to state a claim, we consider all facts in the light most favorable to him.
See Hernandez v. Joliet Police Dept.,
On September 3, Sherman & Sherman filed a proof of claim on behalf of FMB. The proof of claim listed the value of the Chevrolet as $19,841.43, an amount greater than the car’s original purchase price. Mr. Adair did not object to the valuation of the car prior to confirmation. The Chapter 13 trustee confirmed Mr. Adair’s bankruptcy plan on September 15, and allowed FMB’s claim as fully secured. In June 1998, Mr. Adair filed an adversary proceeding in the bankruptcy court challenging FMB’s proof of claim; that proceeding was dismissed when Mr. Adair’s Chapter 13 proceeding was dismissed altogether. 1
Mr. Adair subsequently filed this FDCPA complaint in district court, seeking damages for what he alleged was Sherman & Sherman’s practice of overvaluing collateral in proofs of claims filed with the bankruptcy court. He contends that Sherman & Sherman overvalued collateral fraudulently, in order to establish as secured claims that should have been unsecured. The district court granted Sherman & Sherman’s motion to dismiss and held that the action was barred by claim preclusion, also known as res judicata.
II
DISCUSSION
Although the district court articulated its decision in terms of claim preclusion, we believe that this case is more appropriately analyzed under the closely related, although analytically distinct, doctrine of collateral estoppel or issue preclusion.
2
Under the doctrine of issue preclusion, an issue may not be litigated if the following conditions are met: (1) the issue sought to be precluded is the same as that involved in a prior action; (2) the issue was actually litigated; (3) the determination of the issue was essential to the final judgment; and (4) the party against whom estoppel is invoked was represented in the prior action.
See Chicago Truck Drivers, Helpers & Warehouse Union (Indep.) Pension Fund v. Century Motor Freight, Inc.,
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Issue preclusion is an affirmative defense.
See Blonder-Tongue Lab., Inc. v. University of Ill. Found.,
A.
We begin by examining the action of the bankruptcy court in order to determine the nature and the scope of its determination. We must ascertain whether the bankruptcy court actually and necessarily decided an issue that would now preclude recovery in the FDCPA action. Sherman & Sherman filed a proof of claim listing the value of the 1995 Chevrolet as $19,841.43. According to the bankruptcy code, any proof of claim filed by a creditor is deemed allowed, unless a party in interest objects.
See
11 U.S.C. § 502(a);
In re Greenig,
Mr. Adair had notice of the proof of claim prior to confirmation, but he chose not to object to it. “As a general rule, the failure to raise an objection at the confirmation hearing or to appeal from the order of confirmation should preclude attack on the plan or any provision therein as illegal in a subsequent proceeding.”
In re Chappell,
These authorities lead us to the conclusion that, when a proof of claim is filed prior to confirmation,
4
and the debtor does not object prior to confirmation,
5
the
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debtor may not file a post-confirmation collateral action that calls into question the proof of claim.
See Justice Oaks,
In short, the bankruptcy process provides protection against fraudulent proofs of claims. Mr. Adair had the opportunity to contest Sherman & Sherman’s proof of claim and practices related thereto in the bankruptcy court. Because he chose not to, he is barred from doing so here. 8
B.
We are also convinced that issue preclusion applies because the FDCPA is an improper vehicle for challenging the amount of a debt established by the bankruptcy court. The FDCPA regulates the practices used to collect a debt.
9
See Keele v. Wexler,
Mr. Adair is attempting to use an FDCPA claim to attack the existence of the underlying debt, a matter already determined definitively in the bankruptcy proceeding. “The purpose of the proof of claim is to alert the court, trustee, and other creditors, as well as the debtor, to claims against the estate.”
In re Fernstrom Storage & Van Co.,
In sum, as Mr. Adair has framed his FDCPA claim, he contests the amount of the underlying debt, not the method employed by the defendants in its collection. The amount of the debt was determined definitively, however, in the earlier bankruptcy proceeding when a proof of claim was submitted prior to confirmation and Mr. Adair’s bankruptcy claim was later confirmed. The amount of the debt therefore cannot be relitigated in a subsequent FDCPA action by operation of the doctrine of issue preclusion. 10
Conclusion
For the foregoing reasons, the judgment of the district court is affirmed.
Affirmed.
Notes
. Mr. Adair is now once again in bankruptcy proceedings. His return to bankruptcy does not foreclose this action because debtors in Chapter 13 proceedings may bring actions in their own name to vindicate statutory rights.
See Cable v. Ivy Tech State College,
.
See Montana v. United States,
. Parties in interest include not only the debt- or, but anyone who has a legally protected interest that could be affected by a bankruptcy proceeding.
See In re FBN Food Servs., Inc.,
. We need not address the practice in bankruptcy courts of allowing proofs of claims to be filed after confirmation.
See, e.g., In re Witkowski,
. Mr. Adair has not argued that the time between the filing of Sherman & Sherman's proof of claim and the confirmation hearing *895 was insufficient to allow him to prepare an objection.
. There has been some tension in bankruptcy court cases as to whether debtors are required to object to proofs of claims prior to confirmation.
See In re Simmons,
. We note the thoughtful analysis of a different district court in an action similar to the one before us:
Plaintiff's claims ... raise the serious concern that bankruptcy debtors will deliberately fail to challenge proofs of claim, despite having knowledge of possible challenges to the proofs of claim and despite being represented in their bankruptcy, in the hope of maintaining collateral challenges pursuant to statutes, like the FDCPA, which may provide additional damages, as well as attorney's fees. If debtors were permitted to make such strategic decisions and, thus, to delay their challenges to the legality or correctness of proofs of claim until after dismissal of the bankruptcy case, the concept of finality in bankruptcy will be completely undermined.
Baldwin v. McCalla, Raymer, Padrick, Cobb, Nichols & Clark, L.L.C.,
No. 98 C 4280,
. We point out that failure to object prior to confirmation does not foreclose a debtor from challenging fraudulent proofs of claim in the bankruptcy court. A bankruptcy confirmation may be revoked by the bankruptcy court if it was procured by fraud.
See
11 U.S.C. § 1330(a). Further, parties who commit fraud on the bankruptcy court may be sanctioned by that court pursuant to Federal Rule of Bankruptcy Procedure 9011, which is analogous to Rule 11 of the Federal Rules of Civil Procedure.
See In re Bryson,
. The FDCPA provides a definition of "debt”: The term "debt” means any obligation or alleged obligation of a consumer to pay money arising out of a transaction in which the money, property, insurance, or services which are the subject of the transaction are primarily for personal, family, or household purposes, whether or not such obligation has been reduced to judgment. 15 U.S.C. § 1692a(5).
. Because the parties have not presented the issue, we express no opinion as to whether a FDCPA claim can ever be predicated on a previous filing in a bankruptcy proceeding.
Cf. Kokoszka v. Belford,
