Legal analysis: the complete process of company cancellation is as follows: 1. Publishing in the newspaper; Second, cancel social security; 3. Cancellation of national and local taxes; 4. Go to the Industrial and Commercial Bureau to cancel the company's registration; 5. Cancel the bank account; Sixth, cancel the seal. Finally, the legal effect of the company seal should be cancelled at the public security organ where the company seal is registered.

Legal basis: Article 16 of the Law of the People's Republic of China on the Administration of Tax Collection, if the contents of tax registration of taxpayers engaged in production and business operations change, they shall report to the tax authorities for the change or cancellation of tax registration with relevant documents within 30 days from the date when the administrative department for industry and commerce handles the change registration or before applying to the administrative department for industry and commerce for cancellation registration.