CBP Will Void Importer of Record Numbers Beginning September 18, 2026
What Every Importer and Customs Broker Must Verify on CBP Form 5106 in the Next 30 Days
CBP published a federal register notice on August 19, 2026 announcing that, beginning September 18, 2026, it will immediately void importer of record numbers when the information on CBP Form 5106 is inaccurate or incomplete. A voided IOR number is invalid for every purpose, including making entry, which means cargo stops at the port with no advance warning. This article explains what CBP is verifying, why several long-accepted industry practices are now defects, and the corrective steps importers and brokers should take before the enforcement date.
KEY TAKEAWAYS
- Effective September 18, 2026, CBP will void importer of record (IOR) numbers where the information on CBP Form 5106 is inaccurate or incomplete. A voided number cannot be used for any purpose, including making entry.
- The physical address on file must be the actual location of the business or individual. A registered agent, customs broker, freight forwarder, P.O. box, business service center, or any other party’s address is now a defect.
- The email address and phone number must belong to the IOR. Broker or forwarder contact information in those fields no longer passes.
- Customs brokers must hold a power of attorney executed directly with the […]




