Electronic invoices are useful. The following are the specific functions of the electronic invoice:

1. The electronic invoice has legal effect and has the same legal effect as the paper invoice.

2. The electronic version of the invoice is easy to save and query. Users do not need to worry about the invoice being lost or damaged, and it is also convenient for rights protection. Especially in online transaction disputes, it can be used as an effective way to obtain transaction evidence.

3. Electronic invoices adopt electronic anti-counterfeiting mode, which can reduce the risk of receiving fake invoices.

4. The use of electronic invoices can improve the efficiency of corporate finance and reimbursement management, reduce costs, and is also beneficial to corporate image and environmental protection.

The conveniences of electronic invoices include:

1. Environmental protection and energy saving: The use of electronic invoices reduces the printing of paper invoices, helps reduce the consumption of forest resources, and is in line with environmental protection. idea.

2. Convenience and speed: Electronic invoices can be quickly delivered to the recipient through email, text messages, etc., improving the efficiency of invoice circulation.

3. Safe and reliable: Electronic invoices use electronic signature technology to ensure the uniqueness, non-repudiation and tamper-proofness of the invoice.

4. Easy to manage: Electronic invoices are easy to store and retrieve, making it convenient for businesses and individuals to conduct financial management and tax declarations.

To sum up, electronic invoices not only have the same legal effect as paper invoices, but also have obvious advantages in environmental protection, efficiency, safety and management.

Legal basis:

"E-Commerce Law of the People's Republic of China"

Article 14

E-commerce Operations Those who sell goods or provide services must issue purchase vouchers or service documents such as paper invoices or electronic invoices in accordance with the law. Electronic invoices have the same legal effect as paper invoices.