An unclaimed property audit is a state-initiated review of your company’s financial records to find money that should have been turned over to the state for safekeeping. These examinations routinely cover 10 to 15 years of transactions, take two to five years to resolve, and often end with an assessment where interest and penalties exceed the underlying property. Most states farm the work out to third-party firms that keep a percentage of what they find, so the auditor across the table has a direct financial interest in making the number bigger.
Why Your Company Was Selected
States don’t audit at random. Agencies compare a company’s reported unclaimed property against benchmarks for its industry and size. A business that has never filed a report, or one whose filings dropped sharply without explanation, moves to the top of the list. High-turnover industries like retail, insurance, and financial services generate large volumes of small unclaimed obligations, so companies in those sectors face scrutiny more often.
Merger and acquisition activity is another common trigger. When one company absorbs another, record-keeping gaps appear almost inevitably. The acquired company’s old accounts payable, payroll obligations, and customer credits may not migrate cleanly into the new system. Complex corporate structures with dozens of subsidiaries raise the same red flags.
The contingency arrangement matters. Many third-party audit firms are paid out of what they recover, which gives them an incentive to dig deep and interpret ambiguous items as reportable. These are not casual reviews.
Which States Can Come After You
When a company operates in multiple states, two priority rules the U.S. Supreme Court established in 1965 govern which state gets each piece of property. Under the primary rule, property goes to the state of the owner’s last known address in your books. If no address is on file, the secondary rule sends it to the state where your company is incorporated.1Justia U.S. Supreme Court. Texas v. New Jersey, 379 U.S. 674 (1965)
During an audit this creates real exposure. A company incorporated in one state with customers in 30 others can face reporting obligations to every one of those jurisdictions. Multi-state audits coordinated by a single third-party firm are common, and the firm may represent a dozen or more states at once. A company that has been remitting everything to its state of incorporation while ignoring the primary rule will find its entire compliance history reopened.
What Auditors Look For
Auditors examine any financial obligation that has gone unclaimed beyond the dormancy period set by state law. Under the Revised Uniform Unclaimed Property Act, which provides the framework most states follow, wages and payroll checks become reportable after one year of inactivity. Most general business debts, accounts payable, and accounts receivable credits carry a three-year dormancy period.2Maine State Legislature. Revised Uniform Unclaimed Property Act – Section 201 Money orders sit for seven years, traveler’s checks for fifteen.
The property types that come up most often:
- Uncashed payroll checks, which hit the one-year clock fastest and are easy to cross-reference against payroll data
- Outstanding vendor payments and checks that were issued but never cashed
- Customer credits, overpayments, and refunds that were calculated but never sent
- Insurance proceeds where the beneficiary never filed a claim
- Gift cards and stored-value balances, where state law treats unused amounts as reportable
- Mineral and royalty payments that go uncashed by landowners
Some states exempt certain business-to-business transactions. These exemptions vary in scope and don’t exist everywhere, so you can’t assume a B2B payment is automatically excluded without checking the law in each state where the counterparty sits.
The Look-Back and the Records Request
The look-back period is what causes most of the pain. Auditors routinely request 10 to 15 years of financial records, and sometimes more. RUUPA includes a 10-year limitation on enforcement, but the clock only runs from the date the duty to report arose, and many states have not adopted this provision. Once a company has filed a non-fraudulent report, the state has five years to challenge it.3Maine State Legislature. Revised Uniform Unclaimed Property Act – Section 610 For companies that have never filed, no limitation may apply at all, which is why the look-back stretches so far.
Expect the auditor to ask for:
- General ledgers and charts of accounts for every entity under examination
- Bank reconciliation reports for all active and closed accounts
- Voided check registers showing which obligations were written off and why
- Trial balances demonstrating how outstanding items were resolved
- Accounts payable and receivable aging reports spanning the full period
All of it needs to be electronic. Auditors run automated tests across millions of transactions, so undigitized paper creates immediate friction. The initial information request also asks about your accounting software, organizational chart, and how funds flow between subsidiaries. Vague or incomplete answers invite follow-up requests and extend the timeline.
How the Audit Proceeds
The process starts with an opening conference where the auditor explains the scope, identifies which entities and property types are included, and sets deadlines for data production. Read the audit notice carefully before this meeting. Confirm whether the examination is being run by a state employee or a third-party firm, the specific years under review, and whether penalties and interest are on the table.
Fieldwork is the longest phase. The auditor reviews your records, identifies items that look unclaimed, and sends them back for research and remediation. This is your opportunity to prove flagged items aren’t actually reportable: that a check was cashed, that the underlying obligation was resolved, that an ongoing business relationship kept the dormancy clock from starting. Companies that can document these facts cut their exposure significantly. Companies that lost the records 12 years ago cannot.
Once both sides have worked through the flagged items, the auditor presents findings and a proposed assessment. This is where negotiation happens. You can contest specific line items, challenge the classification of particular property types, or dispute whether certain items fall within the audit’s scope. The whole process typically runs two to five years from notice to resolution.
Estimation Is Where Most of the Money Comes From
When a company cannot produce records for older years within the look-back period, auditors don’t skip those years. They estimate what was owed. The usual approach: the auditor identifies the earliest years with transaction-level data, calculates an error rate by dividing confirmed unclaimed property by total revenue for that period, then applies that rate to revenue for every year where records are missing. The estimated liability can be enormous.
RUUPA places a real limit on this. If a company has filed its required reports and kept its records, the examination must be based on an actual review of those records, and estimation cannot be used unless the company consents in writing.4Maine State Legislature. Revised Uniform Unclaimed Property Act – Section 1003 Estimation is supposed to be reserved for situations where records genuinely don’t exist. In practice, many audits reach years that predate the current accounting system, and the records are gone.
The legal ground for challenging estimation is real but hard-fought. In a 2016 federal case, a court found that Delaware’s estimation methodology violated due process, describing the state’s approach as “a game of ‘gotcha’ that shocks the conscience.” The court found that the auditor had replicated characteristics that increased the liability across the entire population while ignoring characteristics that would have reduced it. That decision put states on notice that estimation must be statistically sound, but it did not eliminate the practice. If you’re facing an estimation-based assessment, scrutinize the methodology closely. Common weaknesses include using a base period that isn’t representative of the full look-back, ignoring property types that would lower the error rate, and applying rates derived from one subsidiary across the entire corporate family.
Penalties and Interest
The final liability includes the unclaimed property itself, statutory interest on the late remittance, and in many cases civil penalties. Interest rates vary significantly by state. Some tie the rate to the Treasury bill rate plus a fixed margin. Others impose flat rates that can reach 12% or more per year. Over a 10- to 15-year look-back, compounded interest alone can exceed the underlying property value.
Civil penalties for failure to report also vary. Some states impose daily penalties that accumulate to a statutory cap. Others calculate penalties as a percentage of the unreported property. Willful non-compliance, meaning knowingly hiding reportable property, triggers the harshest consequences. Remitting the identified property plus interest and penalties closes the examination and resets your compliance status going forward.
Challenging the Findings
You are not required to accept the auditor’s conclusions. The Supreme Court has held that a state’s right to escheat property is “purely derivative” of the owner’s interest, meaning the state steps into the shoes of the missing owner and takes only what that owner was actually owed.5Legal Information Institute. Delaware v. New York, 507 U.S. 490 (1993) This creates a meaningful constraint. If no actual debtor-creditor relationship exists for a particular item, the state has no basis to claim it. Estimated liabilities are especially vulnerable on this point, because the estimated amount doesn’t correspond to any identified owner or specific obligation.
Most states provide an administrative hearing process where you can challenge the legal basis of the findings. If that fails, judicial review is typically available. Deadlines and the specific forum vary by state. If you intend to challenge a significant assessment, bring in counsel experienced in unclaimed property law early, ideally before fieldwork ends, so that objections are documented throughout rather than raised for the first time after the final assessment.
Voluntary Disclosure Before an Audit Notice Arrives
If you know you have exposure but haven’t yet been contacted, a voluntary disclosure agreement is a better path. Most states offer these programs, and the advantages over waiting to be audited are substantial.
The biggest benefit is financial. States routinely waive penalties and interest for companies that come forward voluntarily and agree to comply going forward. The look-back under a VDA is often shorter than what an audit would cover, with many states capping it at roughly 10 years plus the applicable dormancy period. In an audit, every dollar found carries years of compounded interest on top.
VDAs also give you more control. You conduct your own review, identify the reportable property, and negotiate the scope of the agreement directly with the state rather than responding to an auditor’s demands on an auditor’s timeline. On successful completion, states generally waive their right to audit the covered years, provided you continue filing on time. The catch: once an audit notice arrives, the VDA window usually closes. Some states give companies as little as 90 days after receiving a VDA invitation letter before referring them for formal examination.
Protecting Your Position Once an Audit Is Underway
A few practical realities are worth keeping in mind.
You have the right to communicate directly with the state administrator, not just the third-party auditing firm. If the auditor’s requests seem unreasonable or the scope appears to be expanding beyond what the notice specified, going over the auditor’s head to the state is a legitimate move. The state is supposed to retain control over the legal theories and substantive decisions driving the audit, even when fieldwork is outsourced.
Request formal written findings at the conclusion of the audit. A written determination is what triggers your right to an administrative appeal. Without it, contesting the assessment becomes procedurally harder.
Records retention is everything. Companies that maintain clean financial records for the full look-back period eliminate the auditor’s ability to use estimation, which is by far the largest driver of inflated assessments. RUUPA explicitly bars estimation when the holder has filed its reports and retained its records.4Maine State Legislature. Revised Uniform Unclaimed Property Act – Section 1003 A company with 15 years of organized, accessible data is in a fundamentally different position than one that shredded everything after seven years because nobody told accounting that unclaimed property rules require longer retention than tax rules do.