The new general invoice code 12: 1 is national tax or local tax, 1 is national tax and 2 is local tax; 2, 3, 4 and 5 are area codes; The 6th and 7th places are years; The 8th digit is the ticket type code, which means: 1 stands for highway inland river freight and passenger transport invoices, 2 stands for unified invoices of construction industry, 3 stands for general-purpose flat-push invoices, 4 stands for general-purpose machine roll-up invoices, 5 stands for general-purpose manual invoices, 6 stands for general-purpose quota invoice, 7 stands for reserved tickets and other invoices of medical industry, tickets, 8 stands for enterprise name invoices, 9 stands for sales of real estate invoices, and 0 stands for highway vehicle toll invoices and other invoices.