The invention relates to a
system for preventing a taxpayer from invoicing beyond a geographic range. The
system comprises a tax source terminal, a
wireless tax source monitor and a background
server, wherein the
wireless tax source monitor corresponds to the tax source terminal; the background
server is used for checking the authority of the
wireless tax source monitor, checking geographic position information and authorizing and receiving
transaction data; the wireless tax source monitor comprises a wireless communication module, a positioning module, a
memory module, a processor, an interface module and the like; the wireless communication module is used for transmitting
invoice application, receiving
authorization information and transmitting the
transaction data; the positioning module is used for positioning the geographic position; the
memory module is used for recording the real-time
transaction data; the processor is used for acquiring the transaction data and controlling the operation of the whole monitor; and the interface module is used for connecting the processor with a point-of-sale (POS)
machine and / or a computer. The invention also provides a wireless tax source monitoring method using the
system. The tax source monitoring is enhanced from a source by combining a wireless communication technique, a geographic positioning technique and an on-line real-time invoicing technique, so that the aim of managing taxes through the data can be fulfilled really.