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.

Issues With Cubic Rates for Some Users

Incident Report for Status.Stamps.com

Investigating

We are aware of reports of inaccurate rates for some USPS mailing services through Stamps.com. Our engineering team is actively investigating, and we will post another update as soon as more information is available.

Posted Sep 21, 2026 - 13:27 PDT