Offline processing: bring my identity certificate, purchase contract and tax reduction and exemption information to the tax hall where the house is located.

Online processing: search for "Chongqing Electronic Taxation Bureau" on the computer webpage, and enter through the first-hand house transaction with special business after registration. Log in to the official account of "Chongqing Taxation" WeChat to enter the electronic taxation bureau, or enter the first-hand house transaction of Chongqing Taxation Bureau through Alipay APP, China Merchants Bank APP and Happy Office APP.