Yes, but it will depend on the carrier for the shipment. In some cases, carriers will send the necessary customs forms for an international shipment back to your ShipStation account along with the label so you can print them out. For some carriers, customs forms are submitted electronically by ShipStation, and so do not need to be printed at all.
For details on your specific carrier and how customs forms are managed, review your carrier's integration page in our Integration Help guide.
The carriers that offer international shipping include: