Shipping rates determine the carrier and service used when an order is fulfilled. Most rate configuration lives with your carrier accounts in ShipStation.

Carriers

Connect your carrier accounts (USPS, UPS, FedEx, etc.) in ShipStation. Those carriers and their negotiated rates become available when you create labels.

Rate selection

When a label is created, the chosen carrier and service set the cost. Standardize this with ShipStation automation rules (by weight, destination, or order value).

💡 Tip: Keep accurate product weights and dimensions in your catalog — rate accuracy depends on them.