Why should the VAT invoice authentication platform log in to the Electronic Taxation Bureau? Because taxpayers need to log in to the VAT invoice comprehensive service platform directly through the electronic tax bureau, and the VAT invoice comprehensive service platform has been successfully docked with the electronic tax bureau! Compared with the previous methods of inserting tax control equipment into USB interface or logging in VAT invoice comprehensive service platform through tax UKEY, after the two systems are successfully docked, taxpayers can directly access VAT invoice comprehensive service platform through enterprise login of electronic tax bureau, and the login mode is no longer limited by a single medium, which is more secure and convenient.