The Postal Service’s™ new prices and fees become effective at 12:01 a.m., Sunday, January 27, 2013. All Post Offices™, postal retail units, and contract postal units (CPUs) must ensure that all daily financial reports are transmitted at the close of business on Saturday, January 26. CPUs must coordinate the logistics to ensure that all daily financial reports are submitted to the host Post Office at the close of business on Saturday, January 26.
Post Offices and postal retail units with POS ONE systems will receive the new software for the price change via a download over the network before they open for business on Sunday, January 27, or Monday, January 28.
The new prices and fees will affect all annual mailing fees, accounting fees, and Post Office Box/Caller Service fees. As of Sunday, January 27, all daily financial reports must contain the new fees. If a payment for an annual mailing fee, accounting fee, or Post Office Box/Caller Service fee is mailed (postmarked) before Sunday, January 27, with the old fees, accept the lower fee amount and process the transaction as follows:
Note: Do not process payments that are mailed after Sunday, January 27, with the old fees; return the payment to the sender.
— Revenue and Field Accounting,
Controller, 12-27-12