A proof of claim is a written statement a creditor files in a bankruptcy case to tell the court exactly how much the debtor owes and why. It is submitted on Official Form 410, and without it a creditor generally receives nothing from the debtor’s remaining assets, no matter how legitimate the debt. The deadline to file depends on the chapter of the bankruptcy and on whether the creditor is a private party or a government agency.
When a debtor files for bankruptcy, they submit schedules listing everyone they owe. Those schedules are the debtor’s version of events. A proof of claim is how the creditor puts their own evidence, and their own numbers, on the record. Under 11 U.S.C. § 501, a creditor may file a proof of claim, and if the creditor doesn’t, someone who shares liability on the debt can file one for them.1Office of the Law Revision Counsel. 11 USC 501 – Filing of Proofs of Claims or Interests The statute says “may,” but the practical reality is stark. A creditor who stays silent almost always collects nothing.
The Three Types of Claims
Every proof of claim falls into one of three categories, and the form asks you to identify which one applies.
Secured claims are backed by collateral, like a house or a vehicle. If the collateral is worth less than the debt, 11 U.S.C. § 506(a) splits the claim in two: a secured piece equal to the collateral’s current value, and an unsecured piece for the rest.2Office of the Law Revision Counsel. 11 USC 506 – Determination of Secured Status A creditor who financed a $25,000 car now worth $15,000 holds a $15,000 secured claim and a $10,000 unsecured claim.
Priority claims receive preferential treatment under 11 U.S.C. § 507(a). These cover things like domestic support obligations and certain tax debts.
General unsecured claims are everything else, from credit card balances to medical bills. They sit at the bottom of the payment hierarchy.
When You Have to File
In Chapter 7, 12, and 13 cases, a creditor who wants any share of the distribution must file a proof of claim. Being listed on the debtor’s schedules is not enough.
Chapter 11 works differently. Under Bankruptcy Rule 3003, a creditor whose debt is on the debtor’s schedules and is not marked disputed, contingent, or unliquidated does not have to file a proof of claim. The schedule entry itself stands as evidence of the claim. But if the schedules mark the debt as disputed, contingent, or unliquidated, the creditor must file, or lose both voting rights on any reorganization plan and the right to receive distributions.3LII / Legal Information Institute. Rule 3003 – Chapter 9 or 11 Filing a Proof of Claim or Equity Interest Check the schedules carefully. Relying on an inaccurate entry can be as damaging as not filing at all.
Filing Deadlines
The court sets a “bar date” for every case. File after it and the claim is usually rejected, so treat the deadline as absolute.
In Chapter 7, 12, and 13 cases, Federal Rule of Bankruptcy Procedure 3002(c) gives non-governmental creditors 70 days from the first date set for the meeting of creditors (the Section 341 meeting) to file. Government agencies get 180 days from the date of the order for relief.4United States Department of Justice Archives. Civil Resource Manual 62 – Claims in Bankruptcy Chapter 11 has no automatic statutory deadline; the court sets the bar date by order and the debtor or trustee notifies creditors.
Every creditor receives a Notice of Bankruptcy Case from the court clerk at the start of proceedings, and the bar date is on that notice. If you’ve lost it, look up the case through the court’s electronic filing system.
Late Filing and Excusable Neglect
Missing the bar date doesn’t always mean the claim is dead, but the path is narrow. Courts weigh late filings under the “excusable neglect” test the Supreme Court laid out in Pioneer Investment Services Co. v. Brunswick Associates, which looks at four factors:
- Prejudice to the debtor if the late claim is allowed.
- The length of the delay.
- The reason for the delay, and whether the creditor controlled the circumstances.
- Whether the creditor acted in good faith.
Courts apply these as a totality-of-the-circumstances test, and the reason for the delay tends to carry the most weight.5Justia U.S. Supreme Court Center. Pioneer Investment Services Co. v. Brunswick Associates Ltd. Partnership A creditor whose mail was misdelivered has a real argument. A creditor who simply forgot does not.
How to Fill Out Form 410
Official Form 410 is the standardized proof of claim, available on the U.S. Courts website.6United States Courts. Proof of Claim The fields are numbered and the form is not long, but small errors invite objections, reduced payments, or outright disallowance.
Required Information
Start with identifying information: the debtor’s name and the case number assigned when the petition was filed. Then state the total amount owed as of the petition date, including accumulated interest, fees, and other charges. If the claim includes interest or other charges on top of principal, attach an itemized statement.7United States Courts. Official Form 410 Proof of Claim
Identify the basis of the debt (goods sold, services provided, money loaned, and so on). If any part of the claim is secured, describe the collateral and its value. If any part is a priority claim under § 507(a), identify the sub-category.7United States Courts. Official Form 410 Proof of Claim
Supporting Documentation
Attach redacted copies of documents that prove the debt exists and show the amount owed. Typical attachments include promissory notes, contracts, invoices, purchase orders, and account statements.7United States Courts. Official Form 410 Proof of Claim A proof of claim with no supporting documents is far more likely to draw an objection.
Redaction Requirements
Bankruptcy Rule 9037 requires you to redact specific personal information from anything you file:
- Social Security and taxpayer ID numbers: last four digits only.
- Birth dates: year only.
- Minors’ names: initials only.
- Financial account numbers: last four digits only.
Other sensitive identifiers, such as driver’s license numbers, may also need protection depending on the case.8LII / Legal Information Institute. Rule 9037 – Protecting Privacy for Filings Skipping redaction exposes the debtor’s information on a public docket.
Mortgage Claims Need Form 410-A
A creditor holding a mortgage on the debtor’s primary residence must also attach Official Form 410-A, the Mortgage Proof of Claim Attachment. It is far more detailed than the base form and requires a full breakdown of the loan: principal balance, monthly escrow, private mortgage insurance, and any escrow deficiency.9U.S. Courts. Mortgage Proof of Claim Attachment It also requires a complete payment history from the first date of default, showing how every dollar received was applied across principal, interest, escrow, and fees. Mortgage disputes are among the most heavily litigated issues in consumer bankruptcy, which is why the form asks for so much detail.
Where to Send It
Most bankruptcy courts accept claims electronically through the Case Management/Electronic Case Files (CM/ECF) system. CM/ECF is primarily used by attorneys and trustees, though some courts also permit self-represented creditors to use it.10United States Courts. Electronic Filing (CM/ECF) Creditors without electronic access can mail a physical copy to the clerk of the court that is handling the case.
What Happens After You File
Once the claim is filed and recorded, it appears on the case’s official claims register. Under 11 U.S.C. § 502(a), the claim is automatically deemed allowed unless someone objects.11Office of the Law Revision Counsel. 11 USC 502 – Allowance of Claims or Interests That is one of the more creditor-friendly features of bankruptcy law. The burden of challenging a claim falls on the trustee or debtor, not on you to prove every element of the debt up front.
Common Grounds for Objection
If an objection is filed, the court holds a hearing to decide whether the claim is allowed, reduced, or thrown out. Section 502(b) lists the specific grounds for disallowance:
- The debt is unenforceable under the underlying contract or applicable law.
- The claim seeks unmatured interest that had not yet accrued on the petition date.
- A property tax claim exceeds the estate’s interest in the property.
- Fees claimed by an insider or the debtor’s attorney exceed the reasonable value of the services.
- The claim was filed after the bar date, subject to limited exceptions.
- Landlord claims for lease termination and employee claims for contract termination exceed statutory caps.
A court can also disallow a claim entirely if the creditor received a fraudulent or preferential transfer from the debtor and hasn’t returned the property or paid back the value.11Office of the Law Revision Counsel. 11 USC 502 – Allowance of Claims or Interests
Amending or Withdrawing a Claim
If you find an error in a filed proof of claim, you can generally amend it, as long as the amendment relates to the same debt as the original filing. Courts evaluate late amendments under a “relation back” framework: an amended claim arising from the same transaction as the original is treated as filed on the original date. An amendment that introduces an entirely new debt does not relate back and may be rejected as untimely once the bar date has passed.
Withdrawing a claim is simple early in a case and gets harder later. Under Bankruptcy Rule 3006, you cannot withdraw a proof of claim without court permission if any of the following has happened:
- An objection to the claim has already been filed.
- An adversary proceeding has been brought against the creditor in the case.
- The creditor has voted on a plan or participated significantly in the proceedings.
If the court does allow withdrawal, it can attach whatever conditions it considers appropriate.12Legal Information Institute (LII) at Cornell Law School. Rule 3006 – Withdrawing a Proof of Claim; Effect on a Plan Creditors sometimes try to withdraw to escape the bankruptcy court’s jurisdiction over related disputes, and courts tend to be skeptical of that move once the case is underway.
Penalties for Filing a False Claim
Filing a proof of claim is a representation to the court that the debt is real, accurately stated, and legally enforceable. Courts take that representation seriously.
Bankruptcy Rule 9011 requires every document filed with the court to have a reasonable factual and legal basis. A creditor who files a claim with no evidence, or with inflated figures, faces sanctions ranging from monetary penalties to reimbursement of the other party’s attorney’s fees.13LII / Legal Information Institute. Rule 9011 – Signing Documents; Representations to the Court; Sanctions
The criminal exposure is much heavier. Under 18 U.S.C. § 152, knowingly presenting a false claim against a bankruptcy estate is a federal crime punishable by up to five years in prison, a fine, or both.14Office of the Law Revision Counsel. 18 USC 152 – Concealment of Assets; False Oaths and Claims; Bribery Prosecutors don’t bring these cases over calculation errors. They bring them when someone deliberately fabricates a debt or inflates a balance to pull money out of a bankruptcy estate.