A Proof of Claim needs more than the completed form. Bankruptcy Rule 3001 sets the proof of claim supporting documentation requirements, and what you attach depends on whether the debt is secured, whether the debtor is an individual, and what kind of account created the obligation. Get the attachments right and your claim is presumed valid; get them wrong and you can lose the presumption, be barred from introducing the missing evidence later, or have the claim reclassified or disallowed.
The Baseline Attachments Every Claim Needs
Every Proof of Claim uses Official Form 410, the standard form approved by the Judicial Conference.1United States Courts. Proof of Claim The form collects your identity, the amount owed, and the basis for the claim. The substance sits in the attachments.
If the debt is based on a written agreement, attach a copy. That means the contract, promissory note, loan agreement, or whatever writing created the obligation.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim Also attach documents showing the total amount owed as of the petition date: invoices, account statements, or a running ledger.3United States Courts. Official Form 410 Proof of Claim If those records are voluminous, a summary can accompany them instead of every page.4United States Courts. Official Form 410 Instructions for Proof of Claim
The documents have to clearly connect the debt to both the creditor filing the claim and the debtor in the bankruptcy case. A pile of invoices with no account number tying them to the debtor invites an objection.
Extra Itemization When the Debtor Is an Individual
When the debtor is an individual, Rule 3001 adds a layer on top of the underlying agreement. You must file an itemized statement breaking down the principal along with any interest, fees, expenses, and other charges that accrued before the petition date.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim The itemization is separate from the writing itself. The court and the debtor need to see where the total comes from, not just what it totals.
Secured Claims: Perfection and Cure
A secured claim is backed by specific property of the debtor. To establish it, you need everything a general claim requires plus evidence that your security interest has been legally perfected. Perfection is the step that locks in your priority over other creditors who might claim the same collateral.
What you attach depends on the type of collateral. Common examples include a recorded mortgage or deed of trust for real estate, a certificate of title showing the lienholder for a vehicle, and a filed financing statement for business equipment or inventory.4United States Courts. Official Form 410 Instructions for Proof of Claim Assignments or transfers of the security interest should also be attached if you have them.
In an individual debtor’s case, secured creditors face one more requirement: you must state the amount needed to cure any default as of the petition date.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim The cure amount tells the debtor and the court what it would take to bring the loan current. Missing perfection or cure documentation can result in the claim being treated as unsecured, which changes your position in the distribution order.
Mortgages on a Principal Residence
If the security interest is in the debtor’s principal residence, the documentation gets more specific. You must file Official Form 410A, the Mortgage Proof of Claim Attachment, along with the standard Proof of Claim.5United States Courts. Instructions for Mortgage Proof of Claim Attachment Form 410A captures the loan terms, prepetition arrearages, and the total cure amount.
If an escrow account is connected to the mortgage, attach an escrow account statement prepared as of the petition date. The statement must be consistent with whatever format applicable non-bankruptcy law requires, so the annual escrow statement you already produce for the borrower is a workable starting point.5United States Courts. Instructions for Mortgage Proof of Claim Attachment
Revolving Consumer Credit Accounts
Credit cards and other revolving consumer accounts get their own rule. If your claim is based on an open-end or revolving consumer credit agreement and is not secured by real property, you do not need to attach the full credit agreement. Instead, you must include a statement providing specific account history details:2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim
- The name of the entity from whom the creditor purchased the account, if applicable
- The name of the entity to whom the debt was owed at the time of the account holder’s last transaction
- The date of the account holder’s last transaction
- The date of the last payment on the account
- The date the account was charged to profit and loss
The requirement reflects how often these debts change hands. Debt buyers often file claims on accounts they purchased for pennies on the dollar, and the account history statement lets the debtor and trustee trace ownership back to the original creditor. If you acquired the debt from someone else, this statement is how you prove it.
When the Original Document Is Lost or Destroyed
If the writing supporting the claim has been lost or destroyed, you can still file. In place of the document, include a written statement explaining the circumstances of the loss or destruction.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim The statement should describe the debt, explain what happened to the original, and confirm the accuracy of the amount claimed.
An explanatory statement is better than filing nothing, but it does not carry the same weight as the original. If the debtor or trustee objects, the court can request additional evidence or deny the claim entirely if the explanation is thin. Creditors who know their file is incomplete should gather any secondary evidence they can find, such as payment records, correspondence, or bank statements showing transactions consistent with the claimed debt.
Redacting Personal Information Before You File
Every document attached to a Proof of Claim becomes part of the public bankruptcy record. Bankruptcy Rule 9037 requires you to redact sensitive personal information before filing.6Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 9037 – Protecting Privacy for Filings Specifically:
- Social Security and tax ID numbers, limited to the last four digits
- Birth dates, limited to the year
- Names of minors, shown by initials only
- Financial account numbers, limited to the last four digits
The clerk is not responsible for catching redaction failures. That falls on you or your attorney. If a document is filed without redaction and nobody catches it, privacy protection for that information is effectively waived. Fixing the mistake later requires a motion to redact the previously filed document, with notice to the debtor, the trustee, the U.S. Trustee, and any individual whose information was exposed.6Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 9037 – Protecting Privacy for Filings Cleanup is far more work than getting it right the first time.
Documenting a Transferred Claim
Debts get sold and assigned all the time. A creditor who acquires a claim after the original Proof of Claim was filed must document the transfer. If the transfer was a true sale, the new claim holder files evidence of the transfer with the court; the original holder then has 21 days to object.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim
If the transfer was made as collateral for another obligation rather than a full sale, the new holder files a statement explaining the terms. Claims based on publicly traded notes, bonds, or debentures are exempt from the transfer-documentation requirements.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim For everything else, an undocumented transfer leaves the claim open to challenge.
What Happens if You Skip a Required Document
A Proof of Claim that is properly signed and filed with the right attachments is treated as presumptive proof that the debt is valid and the amount is correct.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim That presumption puts the burden on the debtor or trustee to disprove the claim. Without proper documentation, the presumption is gone, and the creditor is proving the claim from scratch at a contested hearing.
In individual debtor cases, the stakes climb higher. If you fail to include the required itemization or written agreement, the court can bar you from introducing that information later and can award the debtor attorney’s fees caused by your failure to comply.2Legal Information Institute. Federal Rules of Bankruptcy Procedure Rule 3001 – Proof of Claim A documentation shortcut becomes a double loss: you lose the evidence you needed, and you pay the debtor’s lawyer for the privilege.
Label each attachment clearly and organize the exhibits to match the sections of Form 410. Keep a complete copy of the entire filing. If a dispute over what you attached comes up months later, your own records are the fastest way to settle it.