How to add funds to your balance or set up auto-funding for your Stamps.com or ShipStation Carrier Services account in ShipStation.
Both Stamps.com and ShipStation Carrier Services give you control over your postage balance within the ShipStation app. You can add funds to your balance manually or set it to automatically add funds once it reaches a specified threshold. The process below outlines both the manually fund and auto-fund process.
This feature triggers ShipStation to add funds when ShipStation detects the Stamps.com account has fallen under a certain threshold and is not connected to Stamps.com's own Auto-buy postage feature that can be enabled when logged into Stamps.com directly. We recommend you only have auto-funding enabled in one location, as having the feature enabled in both ShipStation and Stamps.com can cause funds to be added twice.
Stamps requires a minimum purchase of $10.