In actual business operation, invoicing between companies is not limited by geographical area, and can be invoiced to units in another county. However, this behavior must comply with the provisions of national tax laws and regulations to ensure that the contents of invoices are true and legal.

First of all, these two companies must be legally registered and pay taxes normally, and have the qualification to issue invoices. Secondly, the two sides should sign a purchase and sale contract or agreement, and specify the charging terms and transaction contents. When issuing an invoice, it must be filled in according to the actual transaction content, and it is not allowed to issue it falsely or on behalf of it. After receiving the invoice, the buyer should deduct it according to the national regulations to ensure tax compliance.

In addition, companies should also pay attention to tax registration and invoice management when issuing invoices across counties. The companies of both parties shall register with the tax authorities of their respective counties, and receive, use and keep invoices according to regulations. At the same time, relevant statements and materials should be submitted to the tax authorities regularly, and they should accept the supervision and inspection of the tax authorities.

To sum up, the company can issue invoices to units in other counties, but it must abide by the provisions of national tax laws and regulations, ensure that the contents of invoices are true and legal, and issue and deduct them according to the prescribed procedures. The two companies should also pay attention to tax registration and invoice management to ensure tax compliance.

Legal basis: According to People's Republic of China (PRC) Tax Collection and Management Law, People's Republic of China (PRC) Invoice Management Measures and other relevant tax laws and regulations, companies are allowed to issue invoices across counties, but relevant regulations must be observed. Specific legal provisions include, but are not limited to: the company shall conduct tax registration, collect, use and keep invoices according to law; Invoicing must be filled in according to the actual transaction content; The buyer shall deduct it according to the provisions of the state.