For example, your company uses hand-torn invoices such as commercial uniform invoice, commercial retail uniform invoice, and industrial and commercial fixed uniform invoice, so you have a head office in Beijing and received the invoice, and then you also opened a branch office in Tianjin. If you use the invoices issued by Beijing in your business in Tianjin, it will violate the provisions of Paragraph 7 of Article 35 of the Measures for the Administration of Invoices in People's Republic of China (PRC), and the tax authorities may order you to make corrections and handle them. Illegal gains shall be confiscated.