Tax guide of Nanjing Local Taxation Bureau: tax procedures: declaration methods: taxpayers should take the initiative to declare and pay taxes at the tax window of the tax service hall according to the statutory declaration period; Upon the application of the taxpayer and the approval of the competent tax authorities, the taxpayer may apply for tax declaration by electronic declaration or mail declaration; Taxpayers can also voluntarily entrust tax authorities to handle tax returns. Taxpayers or withholding agents who declare by electronic means or by mail must declare within the statutory time limit. The tax collector system shall be implemented for tax declaration. The tax collector is recommended by the taxpayer in writing and promises to bear legal responsibility for the duty behavior of the tax collector; Taxpayers recommended by taxpayers shall be trained by the tax authorities, and after passing the examination, they shall be recognized and issued with taxpayer certificates. Nanjing Local Taxation Bureau provides "one-stop" service for taxpayers in the city, and all kinds of daily tax matters, such as declaration and collection, registration management, invoice management, acceptance of feedback, consultation and publicity, are handled in the tax service hall. In some local tax branches that implement paperless collection, taxpayers open tax deposit accounts at the business outlets of ICBC with the Notice issued by the tax authorities. When enterprises and institutions use the tax declaration manual to declare, they must truthfully fill in the multi-joint declaration forms of various taxes on a monthly basis, and fill in the pre-existing tax account number in the taxpayer's statement. After examination and approval by the tax authorities, the declaration form and receipt form shall be retained, and the stub shall be returned to the taxpayer after being stamped. The receipt of the declaration form together with the "entrusted receipt certificate" issued by the bank after the transfer of funds is used as the tax payment certificate. Supplement: You read it carefully, and the website also introduces more detailed questions: