A manifest mailing system is an automated, computer-supported system that allows a mailer to document postage and fees for all pieces in a mailing paid via permit imprint. Each piece in a manifest mailing is labeled with a unique identification (ID) number. The manifest lists each piece by ID number and shows the amount of postage claimed for that piece. The pieces may be identical or nonidentical in weight. More than one class of mail may be reported on the manifest. The mailer simply submits the manifest, a postage statement, and the mail to the designated drop off point at their local post office. The manifest is randomly checked for accuracy, and if all is in order, the total postage amount shown on the manifest is deducted from an advance deposit account held by the mailer and the mail is dispatched.