In the name of being succinct: yes. USPS requires you to fill out customs forms when shipping to military addresses. It doesn’t matter if you buy shipping labels with shipping software, or if you ship your package at the Post Office.
You also Need Customs Forms When Shipping From Military Addresses
In the case of military addresses, customs forms are required both ways. So, you’ll need to fill out a customs form if you’re shipping from military addresses, as well.
Technically, USPS treats these addresses as domestic destinations. As a result, a lot of shippers become confused as to why USPS requires customs forms for shipping to and from APO/DPO/FPO addresses. In the words of Bruce Hornsby (and the late Tupac Shakur), “That’s just the way it is!”
How Can I Get a Customs Form?
In need of a customs form? You can download them off of USPS’ website. However, if you use online shipping software to buy postage, the customs form may already be filled out for you when you type in your shipment information! On top of getting access to some of the deepest USPS discounts out there, that’s yet another reason why you should use shipping software.