Which payment method requires a complete domestic return address?

The choice requiring a complete domestic return address is Precanceled Stamps. Precanceled stamps are specifically designed for mailers who prepay postage in bulk, often for business purposes. These stamps indicate that the sender has prepaid for the mailing service, and as a part of the mailing requirements, regulations typically mandate that a complete return address is included.

A complete domestic return address is crucial for several reasons. First, it enables postal services to return undeliverable mail to the sender. This adds a level of accountability and traceability to postal communications, which is especially important for businesses that rely on accurate delivery. In addition, having a full return address can help ensure compliance with postal regulations, which may require it for certain types of postage.

In contrast, other payment methods listed may have different requirements concerning return addresses. For example, Postage Due often allows mail to be delivered without a pre-paid postage stamp but may incur additional fees on delivery. Metered Mail typically uses printed postage that can include a return address but does not mandate a complete one like Precanceled Stamps do. Online Shipping Labels often have certain requirements but can be more flexible with address formats depending on the platform used.