NAUPA III is the long-awaited update to unclaimed property electronic reporting standards, replacing the fixed-width NAUPA II format with a modern XML structure. After an initial delay, the rollout is now planned in two phases starting Spring 2027. Businesses should begin assessing their reporting systems and data workflows now.
The unclaimed property reporting landscape is about to change in a meaningful way. For the first time since 2003, the National Association of Unclaimed Property Administrators (NAUPA) has approved a new electronic reporting standard, NAUPA III. The shift affects how organizations prepare, validate, and submit unclaimed property reports to state agencies.
If your team manages multi-state unclaimed property reporting, here’s what you need to understand before the transition begins.
What is the NAUPA III file format, and why does it matter?
The NAUPA III file format replaces the NAUPA II standard, which has been in use since 2003. The most significant change is structural: NAUPA III moves from a fixed-width text format to XML (Extensible Markup Language).
Fixed-width formats are rigid. Adding new data fields or accommodating state-specific requirements requires workarounds that create inconsistency across jurisdictions. XML solves this by providing a flexible, extensible structure that supports better data validation, cleaner integrations with modern systems, and state-specific customization through XML Schema Definition (XSD) files.
Beyond the format change, NAUPA III introduces expanded data elements, including email addresses, phone numbers, driver’s license details, date of death indicators, and additional securities fields. These updates reflect how businesses actually track owner information today, making it easier for states to locate rightful owners.
When will states start accepting the NAUPA III format?
The rollout has been delayed and restructured. According to NAUPA’s May 2026 update to the Unclaimed Property Professionals Organization (UPPO), the transition will now occur in two phases.
Phase 1, Spring 2027: Reporting moves to the XML format with new validation tools and an expanded field structure. Property codes will remain largely consistent with NAUPA II, with minor updates to accommodate essential new codes. NAUPA describes this phase as a manageable “test run” to allow holders, state vendors, and software providers to learn XML reporting before the full schema is implemented.
Phase 2, Timeline TBD: A more comprehensive restructuring of property codes will follow. NAUPA has committed to providing a crosswalk guide that maps old codes to new ones to simplify the transition.
Organizations can verify accepted formats for their specific jurisdiction at unclaimed.org/state-reporting, as implementation timelines will vary by state.
What should compliance teams do to prepare now?
The Spring 2027 start date may feel distant, but for teams managing multi-state reporting workflows, the preparation window matters. Here’s where to focus:
- Audit your current data: Review the owner data your organization collects and stores. NAUPA III requires fields, like email addresses and phone numbers, that your current reporting process may not capture or validate consistently.
- Assess your reporting systems: If your team relies on manual processes or legacy tools, confirm whether your current workflow can generate XML output or will require system updates.
- Monitor state announcements: States will set their own acceptance and transition deadlines. Track jurisdiction-specific timelines closely to avoid gaps in compliance.
- Review NAUPA’s XSD resources: NAUPA will provide XML Schema Definition files to support validation before filing. Incorporating these into your pre-filing review process will reduce errors during the transition period.
Start Preparing Before the Deadline
NAUPA III is the most significant change to unclaimed property reporting in over two decades. The phased approach gives organizations time to adapt, but only if preparation starts now.
ReportMyUP helps compliance teams manage due diligence workflows, dormancy tracking, and NAUPA-compliant reporting from one centralized platform. As NAUPA III timelines take shape, we’ll keep our clients updated every step of the way.
Frequently Asked Questions About NAUPA III
What is the difference between NAUPA II and NAUPA III?
NAUPA II uses a fixed-width text format developed in 2003. NAUPA III replaces it with an XML-based structure that supports better data validation, expanded data fields, and state-specific customization through XSD schema files.
When does NAUPA III take effect?
Based on NAUPA’s May 2026 update, Phase 1 of the NAUPA III rollout is planned for Spring 2027. Phase 2, which introduces a full property code overhaul, does not yet have a confirmed timeline.
Will NAUPA II still be accepted after NAUPA III launches?
Yes, during the transition period, NAUPA III will run alongside NAUPA II. Each state will determine its own deadline for phasing out NAUPA II submissions.
Do all states have to adopt NAUPA III at the same time?
No. Individual states will set their own implementation and transition timelines. Organizations should monitor state-specific announcements and verify accepted formats at unclaimed.org/state-reporting.