| 摘要 |
PROBLEM TO BE SOLVED: To achieve a fair tax-paying system so as to file a tax declaration at ease. SOLUTION: In a provider for private document issuing arranged on a wide area network, a purchasing information receiving means receiving purchasing information for products or services from plural stores or service providing terminals SSP of hospitals or the like, a purchasing information publishing means publishing the purchasing information via the network to members registered to the provider and a purchasing certification issuing means issuing documents to certificate the purchasing information are equipped, then an issuing system making purchasing items clear and also issuing private documents enabling to use them as evidences for the tax declaration is allowed to be constructed. |
