1, telephone inquiry. In this way, the relevant person in charge of the enterprise can call the inquiry number "12366", select the corresponding business according to the call prompt, and enter the invoice code for inquiry. Generally speaking, this query method is more convenient.

2, the tax portal website query. Query invoices through the tax portal. The person in charge of enterprise finance can search the corresponding tax portal, find the "online invoice inquiry" module in the station and click to enter, and then fill in the invoice category, code, number, invoice date, total price, tax and other corresponding information according to the prompt for inquiry.

3. wechat query. Today, the official WeChat of some provincial and municipal state taxation bureaus has launched the "invoice inquiry" function. Taxpayers only need to pay attention to the corresponding WeChat official account, and click the invoice query according to the prompt to view it.

4. National VAT invoice inspection platform. The national VAT invoice inquiry platform is an online invoice inspection platform launched by State Taxation Administration of The People's Republic of China for inquiring special VAT invoices, general VAT invoices, special VAT invoices for goods transportation and uniform invoices for motor vehicle sales. Using this method to query the authenticity of invoices, taxpayers can search the "national VAT invoice inspection platform" to log in and query.