This mobile system, which is PalmOS-based software and can run on any Palm-based device, It is used for on-site invoice notification in municipalities. Last household information, garbage, lighting, sewerage etc. tax information is transferred from the Back Office Municipal Application system to the Mobile device. Municipal officials collecting the last water meter data in the transmitted data light; according to the amount of water consumed, the calculations on the device and the Notification slip are printed with all the information required to be notified and left to the household owner. When it comes to the center with the device, the latest information read from the mobile device and calculated; Transferred to the municipal automation system. Thanks to the ParameterPDA that is used for this purpose and is parametrically prepared PC transfer software, the system can work seamlessly with different municipality applications. Also; PocetPC version of the application is also available.