FY1977, Congress returned to the use of full-year continuing resolutions for more than a decade. For each of the 11 fiscal years following FY1977, covering FY1978-FY1988, Congress enacted a. full-year continuing resolution covering at least one regular appropriations act.
1 For example, a one-year small mailbox can cost $125 to $150, while a large mailbox for the year can cost $250 to $300. 2  By the month, plan on budgeting anywhere from $10 to as much as $30 to rent a UPS mailbox.
Additional costs: 1  Most post-mounted mailboxes not sold as part of a kit do not include posts. Posts and post kits cost $25-$250. 2  Many solid-unit post mailboxes are designed to be installed on top of a 4x4 pounded into the ground. The 4x4 is not included with the mailbox; expect to pay $2-5, depending on location.