How is the USPS primarily funded?

The United States Postal Service (USPS) is primarily funded through postage sales and service revenue. This means that the money the USPS generates comes from customers purchasing stamps and mailing services, as well as other postal products and services. The USPS operates independently of taxpayer funding, which sets it apart from many government agencies; it does not rely on federal appropriations or subsidies to maintain its operations.

The focus on self-funding through postage and services underscores the USPS's role as a self-sustaining entity. This model also reflects the USPS's efforts to innovate and adapt its offerings to meet the changing needs of the public, ensuring continued revenue from mail and package delivery as well as other services such as money orders and retail offerings.

In contrast, other funding options listed, such as taxpayer money, government subsidies, or donations and grants, are not sources of income for the USPS, making them less relevant to understanding how the organization finances itself.