1. Commodity code can be entered in advance or manually during invoicing;

2. When entering and filling in invoices in advance, you can select commodity information from the commodity coding library;

3. If you enter the invoice manually, you will be prompted to assign a code to the goods without tax classification code.

Invoice code is the code given to the invoice by the tax department. When querying the authenticity of the invoice, you need to enter the invoice code. The code of ordinary invoice, commonly known as manual invoice, is 12 digits. The original code of special VAT invoice and general VAT invoice was 10, and the invoice code of new general VAT invoice was adjusted from 10 to 12.

Ordinary invoices are mainly used by business tax taxpayers and small-scale VAT taxpayers, and ordinary VAT taxpayers can also use ordinary invoices when they cannot issue special invoices. Ordinary invoices consist of industry invoices and special invoices. The former is applicable to a certain industry and business, such as commercial retail unified invoice, commercial wholesale unified invoice, industrial enterprise product sales unified invoice, etc. The latter is only applicable to a certain business project, such as advertising fee settlement invoice, commercial housing sales invoice, etc. Special invoices for value-added tax are the product of China's new tax system. It is an invoice set by the national tax department according to the needs of value-added tax collection and management, which is specially used for taxpayers to sell or provide value-added tax taxable items.

Special invoice not only has the connotation of ordinary invoice. At the same time, it also has a more special role than ordinary invoices. It is not only a financial income and expenditure voucher to record commodity sales and value-added tax. Moreover, it is a legal certificate that both the seller's tax obligation and the buyer's input tax amount are recorded, and it is a legal certificate that the buyer deducts taxes, which plays a key role in the calculation of value-added tax.