Hello, I'm glad to answer your question! The invoice verification code is covered by the seal. How to inquire about relevant information: What should I do if the invoice verification code is covered by the seal? What should I do if the ordinary VAT invoice verification code is overwritten? Scan the mobile phone WeChat and QQ QR code to know. The method is as follows: 1, and the check code is not clear when you get the invoice. 2. Take out the mobile phone WeChat, scan the QR code at the top left and read the QR code information. As shown in the figure below, the following parts are the amount, invoice date and check code. The verification code of VAT ordinary invoice is the only ciphertext of invoice anti-counterfeiting mark, just like the anti-counterfeiting code on banknotes. The ciphertext of each invoice is unique. The check code can be used to check the authenticity of the invoice. In some areas, VAT invoices can also be traced back through the check code, and compared with the contents of invoices obtained by enterprises after inquiry. However, this function is not enabled in most areas, and only the purchasing company information of invoices can be queried. The verification code is: 1 for the method of verifying the authenticity of ordinary VAT invoices, and enter 12366 invoice query in Baidu search. 2. A query page will appear. 3. Current invoice number and invoice code. 4, click the "query" button. Extended information 1. Measures for the Administration of Invoices in People's Republic of China (PRC) Article 20 Units and individuals that sell goods, provide services and engage in other business activities shall collect money from outside, and the payee shall issue invoices to the payer; Twenty-first all units and individuals engaged in production and business activities, when buying goods, receiving services and paying other business expenses, should ask the payee for invoices. When obtaining the invoice, you are not allowed to change the name and amount. According to the new regulations of State Taxation Administration of The People's Republic of China City, People's Republic of China (PRC), from July 1, consumers are required to provide taxpayers' identification numbers or unified social credit codes to sellers, no matter whether they issue special VAT invoices or ordinary invoices, as long as the invoices are headed to enterprises. The taxpayer identification number is the full name of the tax number. For enterprises, the tax number is equivalent to our personal ID number, and the tax number of each enterprise is unique. As a legal and valid voucher, electronic invoice has the same legal effect, basic use and basic use provisions as the paper-based ordinary VAT invoice supervised by tax authorities. Different from the traditional paper invoice, it is based on the original encryption and anti-counterfeiting measures, using digital certificates for electronic signature for the buyer to download and use. Electronic invoices are suitable for e-commerce, telecommunications, express delivery, public utilities, supermarkets and other industries, as well as taxpayers who use general-purpose machines to print invoices, self-printed title invoices and ordinary VAT invoices.