State sovereign immunity is a cornerstone of American federalism, protecting states from being sued in federal court without their consent. Derived from the Eleventh Amendment, this doctrine has deep roots in the nation's constitutional structure, ensuring that states can govern without constant legal interference from private parties. However, when states become entangled in financial distress—as creditors, debtors, or regulators—the interaction between sovereign immunity and federal bankruptcy law raises complex legal questions. Debtors seeking to discharge debts owed to a state, creditors trying to recover funds from a state agency, or municipal entities restructuring under Chapter 9 all must navigate the tension between state immunity and the federal bankruptcy power.

Understanding State Sovereign Immunity

The Eleventh Amendment and Its Scope

The Eleventh Amendment, ratified in 1795, expressly bars federal courts from hearing suits against a state brought by citizens of another state or foreign country. In Hans v. Louisiana (1890), the Supreme Court extended this protection to suits by a state's own citizens, holding that the amendment embodies a broader principle of state immunity from any private suit in federal court. This immunity is not absolute—states can consent to suit, and Congress can sometimes abrogate it under section 5 of the Fourteenth Amendment. Yet outside those exceptions, the doctrine remains a formidable barrier.

Exceptions to Sovereign Immunity

Several recognized exceptions allow private parties to proceed against states or state officials. Express waiver occurs when a state voluntarily consents to suit in federal court, often through state statutes or by removing a case to federal court. Congressional abrogation permits the federal government to override state immunity when acting under its enforcement powers—most notably, the Fourteenth Amendment. Additionally, under the Ex parte Young doctrine, state officials can be sued in their official capacity for prospective injunctive relief to stop ongoing violations of federal law. Bankruptcy cases frequently test the boundaries of these exceptions.

Sovereign Immunity in Bankruptcy Proceedings

The Bankruptcy Code and State Immunity

Section 106 of the Bankruptcy Code is the primary statutory provision governing state sovereign immunity in bankruptcy. It contains three subsections: Section 106(a) allows a state to waive its immunity by filing a proof of claim or otherwise participating in the bankruptcy case. Once the state submits to the court's jurisdiction, it must accept the full setoff of that claim and cannot assert immunity for claims related to the same transaction. Section 106(b) provides that a state is deemed to have waived immunity if it files a proof of claim for a debt owed by the debtor. Section 106(c) was originally intended to abrogate state sovereign immunity entirely for bankruptcy cases, but the Supreme Court has repeatedly narrowed its effect.

Constitutional Challenges and Supreme Court Precedents

The constitutional power of Congress to abrogate state sovereign immunity under its Article I powers—including the Bankruptcy Clause—has been hotly contested. In Seminole Tribe of Florida v. Florida (1996), the Supreme Court held that Congress cannot abrogate state sovereign immunity through its Article I powers, including the Interstate Commerce Clause. This decision cast serious doubt on the validity of Section 106(c) as a blanket abrogation. However, the Court left open the possibility that states might consent through participation in a federal program.

In FMC Corp. v. South Carolina (2012), the Supreme Court clarified that states retain immunity unless explicitly waived or properly abrogated under the Fourteenth Amendment. The case involved a debtor seeking to discharge state environmental liability in bankruptcy. South Carolina had filed a proof of claim, which under Section 106(a) waived immunity as to claims arising from the same transaction. But the state argued that immunity applied to separate, unrelated claims. The Court agreed, holding that a narrow waiver based on filing a proof of claim does not open the door to all bankruptcy litigation against the state. The FMC Corp. decision reinforced the principle that sovereign immunity remains a significant hurdle unless a state consents.

Abrogation of State Sovereign Immunity in Bankruptcy?

Despite Seminole Tribe, some scholars argue that the Bankruptcy Clause might still support limited abrogation when the state is acting in a proprietary capacity or when the bankruptcy system's effective functioning requires binding states. Lower courts have split on the issue. Many circuits hold that Section 106(c) is unconstitutional as applied to abrogate state immunity for adversary proceedings, but they allow waiver under (a) and (b). The result is a patchwork: states are immune from most claims unless they voluntarily participate or Congress specifically abrogates under the Fourteenth Amendment.

Waiver of Immunity by States

Express Waiver in Bankruptcy Cases

States can expressly waive sovereign immunity by statute or by conduct in a bankruptcy case. Some states have enacted laws consenting to suit in federal bankruptcy court for certain types of claims, such as tax refunds or contract disputes. More commonly, waiver occurs when a state files a proof of claim. Under Section 106(a), filing a claim operates as a waiver of immunity only with respect to that claim and claims that arise from the same transaction. The Court in FMC Corp. emphasized that this waiver is narrow and does not expose the state to unrelated counterclaims.

Implied Waiver and Participation in Bankruptcy Process

Participation in the bankruptcy process beyond filing a claim—such as engaging in discovery, removing a case to federal court, or appealing an order—may also constitute a waiver. The standard is whether the state has voluntarily invoked the court's jurisdiction. For example, if a state agency removes an adversary proceeding from state to bankruptcy court, it cannot later claim immunity from that court's jurisdiction. However, the Supreme Court has generally disfavored implied waivers, requiring clear and unequivocal evidence of consent.

Implications for Creditors and Debtors

Challenges for Creditors Against State Entities

Creditors seeking to recover debts from state agencies or instrumentalities face formidable barriers. If the state has not waived immunity, a creditor cannot sue the state in federal bankruptcy court. Even if the debtor's plan of reorganization treats the state's claim, the state may still resist attempts to enforce a discharge or seek damages. This is particularly problematic for creditors of municipal entities in Chapter 9 bankruptcy, where states often retain oversight authority.

For individual Chapter 11 or Chapter 13 debtors, discharging a state tax debt or environmental obligation may depend on the state's willingness to participate. If the state refuses to file a proof of claim, the debtor may try to affirmatively avoid the debt, but the court lacks jurisdiction to bind the state without its consent. This creates a significant gap in the bankruptcy system's ability to provide a fresh start.

Strategies for Creditors

Creditors can attempt several strategies to address sovereign immunity. First, they can request that the state waive immunity through a formal stipulation or by filing a proof of claim. If the state has already filed a claim, creditors may pursue counterclaims arising from the same transaction. Second, creditors can look for state statutory waivers—many states have limited waivers for contract or tort claims. Third, creditors may bring claims in state court, where sovereign immunity may be more limited or waived by state law. Fourth, in appropriate cases, creditors can seek injunctive relief against state officials under Ex parte Young to compel compliance with federal bankruptcy law.

The PennEast Pipeline Decision (2021)

In PennEast Pipeline Co. v. New Jersey (2021), the Supreme Court addressed whether a private company could exercise the federal government's eminent domain power to condemn state-owned land for a pipeline project. The Court held that the federal government had properly delegated its sovereign power to the company, and that state sovereign immunity did not bar the suit because the government was the real party in interest. While not a bankruptcy case, the decision may influence future battles over whether the bankruptcy trustee or a debtor can exercise certain federal powers—such as the power to avoid fraudulent transfers—against a state. The PennEast ruling suggests that when a federal program expressly delegates authority, state immunity may give way.

Ongoing Debates and Future Directions

Courts continue to grapple with the scope of sovereign immunity in bankruptcy. Two areas remain unsettled. First, whether Section 106(c) can be applied to states under the Bankruptcy Clause after Seminole Tribe remains an open question in some circuits. Second, the treatment of state tax claims in Chapter 9 municipal bankruptcy is contested—some states argue that the automatic stay does not apply to them. The Supreme Court has not fully resolved these issues, and practitioners expect further litigation.

Policy Considerations

The tension between state sovereign immunity and federal bankruptcy power reflects fundamental policy choices. On one hand, protecting state autonomy is essential to federalism. States need freedom to manage their finances, enforce regulations, and control litigation budgets. On the other hand, an effective bankruptcy system requires a comprehensive, binding resolution of all claims against the debtor. Leaving state claims untouched can undermine reorganization efforts and prevent a fresh start for individuals and businesses.

In municipal Chapter 9 cases, the problem is acute. Cities like Detroit and Puerto Rico (a territory, but analogous) have needed federally supervised debt restructuring, but state-level creditors have wielded sovereign immunity to resist certain modifications. Congress has sometimes stepped in—for example, with Section 903 of the Bankruptcy Code—but the limits remain contested. Balancing these interests may require legislative action, such as a clear abrogation provision tied to the Fourteenth Amendment or a system of conditional waiver on receipt of federal funds.

Conclusion

State sovereign immunity continues to shape the landscape of bankruptcy proceedings, offering states protection from unwelcome suits while simultaneously creating obstacles for debtors and creditors. The Eleventh Amendment, as interpreted over more than two centuries, provides strong but not absolute immunity. The Bankruptcy Code’s carefully drawn waiver provisions, along with Supreme Court decisions like FMC Corp. and PennEast, define the boundaries of when a state can be brought into the bankruptcy fray. As economic pressures and municipal distress evolve, courts and lawmakers will likely revisit these rules. For now, parties facing state sovereign immunity in bankruptcy must tread carefully, exploring every available avenue for consent or abrogation, and remaining mindful that the shield of state immunity is both a constitutional safeguard and a practical barrier.

For further reading, consult the Cornell Legal Information Institute’s overview of the Eleventh Amendment and the Congressional Research Service report on state sovereign immunity.