Stamps.com System Status

Welcome to Stamps.com’s home for real-time information on system status. If there are any interruptions in service, a note will be posted here.

International Shipment Requirements

Incident Report for Status.Stamps.com

Monitoring

To comply with new customs regulations, carriers, including USPS and others, are now requiring six-digit Harmonized System (HS) codes on all international commercial shipments.

Effective September 1, 2025, shipments without these codes may be delayed or rejected by customs authorities.
Posted Aug 25, 2025 - 14:51 PDT