Outage in Stamps.com
Issues With Cubic Rates for Some Users
Resolved MinorIncident Report
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.
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Latest Updates ( sorted recent to last )
RESOLVED
4 days ago - at 09/23/2026 12:46AM
Stamps.com Engineers have fixed the cubic rating issue and all systems are functioning normally. Thank you for your patience.
INVESTIGATING
5 days ago - at 09/21/2026 08:27PM
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.
Latest Stamps.com outages
Issues Printing Postage - 10 days ago
EU De Minimis Removal Disruptions - 3 months ago
Stamps API Technical Issue - 3 months ago
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