USPS Dimension Requirements

Incident Report for ShipStation

Monitoring

To comply with USPS standards and avoid label errors or future USPS non-compliance fees, please be sure to enter all package dimensions (L x W x H) when creating your label.

As you may know, USPS is introducing a non-compliance fee for missing or inaccurate package dimensions (L x W x H) starting in early 2027. For more info please see USPS Dimension Compliance

Posted Sep 30, 2026 - 17:18 CDT

This incident affects: Carriers (Stamps.com).