Tax alert

Responding to an unclaimed property audit notice: What to do first

Key considerations for audit preparation and notice response

May 29, 2026
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State & local tax

Executive summary

State unclaimed property enforcement activity has intensified in recent years, leading to a notable rise in unclaimed property audits. Although unclaimed property is not a tax, it serves as a meaningful revenue stream for states, which collect and hold these funds on behalf of owners until they are claimed. Because states consistently take in more unclaimed property than they return each year, unclaimed property enforcement remains a financially attractive revenue stream. To further strengthen compliance, many jurisdictions have expanded their enforcement tools, including audits, voluntary disclosure programs and self-review initiatives, resulting in increased scrutiny for holders.

This article explores the current unclaimed property audit landscape and outlines key considerations for responding to an audit notice and reducing risk before an exam is initiated.


Introduction

Unclaimed property refers to liabilities recorded on a company’s books that are owed to another party but remain unclaimed or unresolved for a specified period—known as the dormancy period. The company holding the liability (debtor) is commonly referred to as the ‘holder,’ and the party to whom the liability is owed (creditor) is the ‘owner.’

There are more than a hundred categories of unclaimed property. Common examples include uncashed payroll and vendor checks, accounts receivable credit balances, gift cards, refunds, consumer rebates, stock and dividend-related property and unclaimed mineral interests. In essence, any outstanding obligation owed to a third party can become unclaimed property.

Every U.S. jurisdiction has its own unclaimed property laws that dictate when a liability becomes reportable and must be remitted to the state. Dormancy periods vary by state and property type, but most range from three to five years, with payroll items typically requiring one year. The rules for determining which state has jurisdiction were established by the U.S. Supreme Court in Texas v. New Jersey, 379 U.S. 674 (1965). Under this framework, the state with first priority is the owner’s state of last known address. For example, if a payroll check is issued to an employee with an Illinois address, Illinois would be the state with jurisdiction over that check if it remains uncashed. If the address of the owner is unknown, the liability defaults to the holder’s state of domicile. ‘Domicile’ typically means state of incorporation or formation. States have also expanded the concept of ‘unknown address’ to allow the use of estimates to fill gaps in incomplete records during audits or voluntary disclosures, as well as taking claim to foreign-addressed property.

Audit landscape

Unclaimed property has become a significant revenue source for many states. In Delaware, the Delaware Economic and Financial Advisory Council has indicated Fiscal Year 2025 unclaimed property revenues of over $500 million with claim payments at only approximately $130 million. Meanwhile, Illinois’ Treasurer’s Office has reported receiving over $560 million in cash in Fiscal Year 2025, while only paying out approximately $304 million. This persistent gap between collections and payouts underscores why states continue to increase their focus on enforcement.

Because unclaimed property serves as a non‑tax revenue stream, holders have experienced heightened enforcement activity nationwide. Most states rely on third‑party audit firms, oftentimes compensated on a contingency‑fee basis, to conduct examinations. These firms also maintain contracts with multiple states, meaning that once one jurisdiction initiates an audit, others can easily be invited to join.

Although state‑driven triggers are not always transparent, several factors commonly increase the likelihood of an audit:

Missing or inconsistent reporting

If a company has historically filed in a state but reporting stops, becomes inconsistent or omits property types that are typical for its industry, the state may initiate an inquiry. This risk is even higher in states requiring negative reporting. Significant fluctuations in reported amounts may also prompt review.

Merger and acquisition activity

States recognize that merger and acquisition events often disrupt accounting processes and record retention. Employee turnover, loss of historical enterprise resource planning (ERP) access, and procedural changes can all create gaps that increase audit exposure. In stock acquisitions, historical liabilities–including those that may have previously been written‑off by the acquired company–transfer to the new owner. When records are incomplete, the holder’s state of domicile may apply estimation techniques that can materially increase the assessed liability.

Ignoring state outreach

States often send reminders, reporting notices or invitations to participate in voluntary disclosure programs before initiating an audit. If a company ignores this outreach, especially if it has no recent filing history, the state may escalate to an examination.

Public disclosures or whistleblowers

Insider reports have triggered several high‑profile unclaimed property actions. One notable example of unclaimed property was Delaware ex rel. French v. Card Compliant, LLC, et al., C.A. No.: N13C-06-289 (Del. Sup. Ct.), a qui tam action initiated in 2013 by Delaware and a whistleblower against Card Compliant and dozens of its clients under the Delaware False Claims and Reporting Act. The allegations focused on unreported liabilities pertaining to unredeemed gift card balances and certain remote holding entities allegedly designed to avoid escheat. Most cases settled or were dismissed, and related actions in New York resulted in more than $40 million in settlements.

If a company has historically filed in a state but reporting stops, becomes inconsistent or omits property types that are typical for its industry, the state may initiate an inquiry. This risk is even higher in states requiring negative reporting. Significant fluctuations in reported amounts may also prompt review.

States recognize that merger and acquisition events often disrupt accounting processes and record retention. Employee turnover, loss of historical enterprise resource planning (ERP) access, and procedural changes can all create gaps that increase audit exposure. In stock acquisitions, historical liabilities–including those that may have previously been written‑off by the acquired company–transfer to the new owner. When records are incomplete, the holder’s state of domicile may apply estimation techniques that can materially increase the assessed liability.

States often send reminders, reporting notices or invitations to participate in voluntary disclosure programs before initiating an audit. If a company ignores this outreach, especially if it has no recent filing history, the state may escalate to an examination.

Insider reports have triggered several high‑profile unclaimed property actions. One notable example of unclaimed property was Delaware ex rel. French v. Card Compliant, LLC, et al., C.A. No.: N13C-06-289 (Del. Sup. Ct.), a qui tam action initiated in 2013 by Delaware and a whistleblower against Card Compliant and dozens of its clients under the Delaware False Claims and Reporting Act. The allegations focused on unreported liabilities pertaining to unredeemed gift card balances and certain remote holding entities allegedly designed to avoid escheat. Most cases settled or were dismissed, and related actions in New York resulted in more than $40 million in settlements.

What do you do if your business receives an audit notice?

If you receive an audit notice from a jurisdiction, there are a few things that you can do to prepare for the upcoming examination:

Reducing risk before an audit notice

If you have not yet received an unclaimed property audit notice, there are several proactive measures available to assess your risk and strengthen your readiness.

Takeaways

Unclaimed property compliance is no longer a low priority back‑office administrative task. It has become a critical governance priority in an era of heightened state scrutiny and aggressive audit activity. By understanding your risk profile, strengthening documentation practices and proactively addressing gaps before an auditor does, companies can significantly lessen the operational and financial impacts of an audit. Whether preparing for a newly issued notice or fortifying compliance programs before one arrives, thoughtful planning and informed action are essential.

For more information about RSM US’ unclaimed property services or further insights, visit the RSM Unclaimed Property page.

RSM contributors

  • Yudit Freda
    Yudit Freda
    Partner
  • Catherine Del Re
    Catherine Del Re
    Partner
  • Jennifer Fine
    Jennifer Fine
    Senior Director

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