At present, our company is generally required to purchase the deduction joint authentication system to authenticate itself. If there are special circumstances, you can go to the institute for certification.

Originally, you only need to bring the green copy of the input tax and the qualification certificate of the general taxpayer. Do it at the certification window in the lobby. On the spot, you need to tear off the teeth on both sides of the certified Lianfa ticket and give it to the window. After the certification, the window staff will return the green lianfa ticket to you, print out the certification notice for you and affix the national tax certification stamp.