First, check the password area information when comparing the VAT certification, including the invoice code and number, the VAT number of the buyer and the seller, the invoice date, the sales amount and the output tax, but excluding the address and telephone number of the other party (these are likely to change, especially the telephone number), so the certification is no problem, and the tax inspection should also be able to explain that if it is just a problem, it is not necessary to void it and reopen it.

The authentication of VAT invoice is mainly to authenticate the encrypted area on the invoice through the special software of the tax department, so the telephone number is not within the authentication scope. It is no problem to discuss with the other party, as long as the buyer doesn't care, but it is best to fill in the telephone number filed with the tax department.

Two. Filling standard of VAT invoice:

(1) The handwriting is clear.

(2) It shall not be changed.

(3) The project is completed.

(4) The tickets and goods are in conformity, and the par value is consistent with the amount actually collected.

(5) All contents are correct.

(six) all copies are filled in at one time, and the contents and amounts of the upper and lower copies are consistent.

(seven) the invoice and the deduction are stamped with the special seal for invoice.

(8) Issue special invoices within the prescribed time limit.

(9) No forged invoices shall be issued.