What Is an Affidavit of Lost Note and When Do You Need One?

An affidavit of lost note is a sworn written statement that stands in for a missing promissory note so the debt it represents can still be collected, assigned, or released. Under Section 3-309 of the Uniform Commercial Code, whoever signs it has to prove they were entitled to enforce the note when it disappeared, describe its terms, and give the borrower meaningful protection against ever being asked to pay the same debt twice.¹ Get those pieces right and the affidavit works. Miss any of them and a court will throw it out.

Why a Missing Note Is a Problem in the First Place

A promissory note is a negotiable instrument. The physical paper carries the right to collect, much like a check: whoever holds it generally has the authority to demand payment.² That’s why lenders, courts, and title companies all want to see the original before anything significant happens with the loan.

When the original is gone, two risks appear at once. The borrower could be forced to pay again if the note resurfaces in someone else’s hands. The lender can’t prove the right to collect at all. The affidavit is how the legal system bridges that gap, but it is not a free pass. Courts scrutinize these filings because a borrower’s home or life savings can turn on them.

When You Actually Need One

Three situations drive almost every lost note affidavit.

Foreclosure

In a judicial foreclosure the lender has to show standing, which normally means producing the original note. If the note is missing, the affidavit gets attached to the complaint as an exhibit, together with whatever protection the court requires. Judges are especially strict here because the borrower stands to lose their home.

Loan Sales and Servicing Transfers

Mortgage loans change hands constantly, and sometimes the paper doesn’t survive the move. When a loan is sold or transferred and the original can’t be found in the file, a lost note affidavit travels with the transfer documents. If the note was already lost before the transfer, the affidavit also has to establish that the transferor had the right to enforce it at the moment of loss, and the parties usually need a separate written agreement showing they meant to transfer ownership of the note itself.

Payoff and Lien Release

When a borrower pays off a mortgage, the lender has to record a satisfaction and release the lien. No original note, no clean release. The lender may need to execute a lost note affidavit, and sometimes post a surety bond, before the county recorder or title company will process the release. This comes up often when someone tries to sell or refinance and finds that a prior lender never properly released an old mortgage. Title insurance does not cover losses tied to a missing promissory note, which is why title companies push hard for solid documentation.

What UCC 3-309 Requires

Section 3-309 sets the legal test. A person who doesn’t hold the instrument can still enforce it, but only if three things are true:¹

They were entitled to enforce the note when it was lost, or they later acquired that right from someone who was.
The loss wasn’t a voluntary transfer or a lawful seizure. The note was genuinely lost, destroyed, or stolen.
The note can’t reasonably be recovered, whether because it was destroyed, its location is unknown, or it’s held by someone who can’t be found or served.

Clearing those three hurdles is not enough on its own. The court still cannot enter judgment unless the borrower is “adequately protected against loss that might occur by reason of a claim by another person to enforce the instrument.”¹

Who counts as entitled to enforce? Under UCC 3-301, that’s the holder of the note, a nonholder in possession who has a holder’s rights, or someone who qualifies under 3-309 despite not having possession.³ In plain terms, a servicer, a bank that bought the loan, or a trust holding the mortgage can all potentially file, so long as they can trace ownership back to whoever last had the right to enforce when the note went missing.

What the Affidavit Has to Contain

Because the affidavit replaces the original document, vague language is fatal. Courts have rejected affidavits that failed to say when the affiant took possession, who searched for the note, what the search involved, or when and how the note was lost. The document needs to tell a coherent story.

At minimum, four areas have to be covered.

Who the Affiant Is and Why They Know

Full name, title, and relationship to the entity claiming the debt. If the affiant is a corporate officer or servicer employee, the affidavit should explain the basis for their firsthand knowledge. A boilerplate statement from someone with no involvement in the loan file won’t survive a challenge.

Terms of the Missing Note

The original principal amount, the date the note was signed, the interest rate, the borrower’s full legal name, the maturity date, and a description of any property securing the debt. If a copy of the note exists, attach it. A copy strengthens the affidavit considerably.

Circumstances of the Loss

When was the note last seen? Where was it stored? Who searched for it, where, and when? “The note was lost during a transfer between servicers” is far more credible than “the note cannot be located.” Detail protects the affidavit under challenge.

Indemnification of the Borrower

A written commitment to protect the borrower against future claims if the original note resurfaces. The UCC’s adequate protection requirement is often satisfied, at least in part, by this clause.¹

The affiant signs in front of a notary, under oath, and the notary completes the certificate with seal and commission expiration date. A knowingly false material statement in the affidavit exposes the affiant to perjury charges, which is part of why courts accept sworn affidavits in place of the original paper.

Adequate Protection: Indemnity Clause or Surety Bond

The UCC says adequate protection “may be provided by any reasonable means,” which gives courts wide discretion.¹ In practice, protection usually takes the form of a written indemnity agreement, a surety bond, a letter of credit, or a cash deposit with the court. Which one gets demanded depends on the amount at stake and how much the counterparty trusts the enforcer to make good on a future claim.

Smaller debts and routine transfers often clear with a simple indemnity clause in the affidavit itself. Larger amounts and contested litigation usually call for a lost instrument bond from a surety company. The bond amount is typically set at around 1.5 times the face value of the missing note. Premiums run about $20 per $1,000 of bond amount as a one-time cost, with a minimum of roughly $100 for instruments under $5,000. Credit matters: a lower score means a higher premium because the surety is taking on more risk.

If you’re the borrower, a bare indemnity promise from a lender that might not exist in five years is thin protection. Ask for a surety bond or other tangible security, especially in a foreclosure. That’s what the adequate protection rule is there for.

If You’re the Borrower on the Receiving End

You are not a passive participant. When a lender files a lost note affidavit against you, you can challenge whether it actually meets the legal requirements. Common grounds include:

Standing. The lender hasn’t shown it was entitled to enforce the note when it was lost, or that it acquired ownership from someone who was. UCC 3-301 makes that status a prerequisite, and the affidavit has to connect the dots.³
Insufficient detail. The affidavit uses conclusory language, skips the search, or glosses over the circumstances of the loss.
Inconsistencies. Multiple affidavits in the same case contradict each other, or the timeline doesn’t line up.
Weak protection. The lender hasn’t offered meaningful security against a future claim.

You can also ask the court to require a surety bond or other security before letting the lender proceed. The UCC bars a court from entering judgment without first finding the borrower adequately protected.¹ Borrowers who don’t raise this are leaving leverage on the table. In foreclosure especially, talking to an attorney who handles defense work is worth the cost, because both the quality of the affidavit and the sufficiency of the protection are contestable on the specific facts.

State Variations That Can Change the Outcome

The UCC is a model code, not federal law. Each state adopts its own version. A 2002 amendment to Section 3-309 expanded who can enforce a lost note: the original 1990 version only allowed the person who physically held the note at the moment of loss to seek enforcement, while the amendment reaches later assignees and purchasers. Not every state has adopted the 2002 version. In states still on the 1990 language, loans that have been sold multiple times can run into real trouble when the paper goes missing. Some states also impose their own procedural rules on lost note affidavits, including specific forms, filing deadlines, or heightened evidentiary standards in foreclosure. Check your state’s version of the UCC and any applicable court rules before relying on the general framework.

1
LII / Legal Information Institute. Uniform Commercial Code 3-309 – Enforcement of Lost, Destroyed, or Stolen Instrument
2
LII / Legal Information Institute. Uniform Commercial Code 3-104 – Negotiable Instrument
3
LII / Legal Information Institute. Uniform Commercial Code 3-301 – Person Entitled to Enforce Instrument