1. The seller uses this system to issue special invoices (by computer). On the one hand, the system will form a set of passwords according to the invoice amount, tax amount and tax registration number of the buyer and the seller, and print them in the upper left corner of the special invoice. On the other hand, the system will record the billing request in the black box, so that the tax authorities can grasp the tax source of the enterprise.

2. For the special invoice deduction coupon obtained by the enterprise, the tax authorities will check whether the password is consistent with the contents of the coupon through the anti-counterfeiting tax control system, and then judge whether it is true.

Extended data:

Functions and characteristics of tax control panel:

1, correctly generate and reliably store the invoice tax control code and invoice tax control data; .

2. Store monitoring and management data that can only be updated through the tax process;

3, high safety;

4, with real-time clock function, accurate clock, daily error does not exceed 1 second;

5. The service life of the battery is not less than 3 years;

6. Both national tax application and local tax application can be supported.

References:

Baidu Encyclopedia-Tax-controlled Special Invoice