All Systems Operational

Stamps.com Online (Printing Postage Using a Web Browser) Operational
Stamps.com Software (Printing Postage Using our Windows Application) Operational
Stamps.com API (SWS/Web Services) Operational
Stamps.com Reporting Tools (Postage History, Refunds & SCAN Forms) Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Sep 23, 2026

No incidents reported today.

Sep 22, 2026

Issues With Cubic Rates for Some Users
Resolved - Stamps.com Engineers have fixed the cubic rating issue and all systems are functioning normally. Thank you for your patience.
Sep 22, 17:46 PDT
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.
Sep 21, 13:27 PDT
Issues Generating Rates for Some Services Through Windows Clients
Resolved - Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience.
Sep 22, 16:09 PDT
Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to generate rates for Priority Mail and UPS services through our Windows Clients. The website is unaffected and should be used as a workaround for now. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.
Sep 22, 13:29 PDT

Sep 21, 2026

Sep 20, 2026

No incidents reported.

Sep 19, 2026

No incidents reported.

Sep 18, 2026

No incidents reported.

Sep 17, 2026

No incidents reported.

Sep 16, 2026

Issues Printing Postage
Resolved - Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience.
Sep 16, 13:54 PDT
Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.
Sep 16, 09:34 PDT

Sep 15, 2026

No incidents reported.

Sep 14, 2026

No incidents reported.

Sep 13, 2026

No incidents reported.

Sep 12, 2026

No incidents reported.

Sep 11, 2026

No incidents reported.

Sep 10, 2026

No incidents reported.

Sep 9, 2026

No incidents reported.

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