There are several ways to query the national tax invoice:

First, the general machine invoices and purchases unified invoices.

(1) The invoice is printed on dry copy paper, and the back of the invoice is painted purple, with anti-counterfeiting patterns such as "S(GS)Z" or "Shenzhen National Tax" and "Tax Emblem" printed on the back, so that the front will not fall off under stress.

(2) Under the ultraviolet light, the invoice producer seal is reflected orange, and at the same time, the gold denomination of "100 yuan edition", "1,000 yuan edition" and "10,000 yuan edition" or special signs such as "tax agent" and "purchase special" are displayed.

(3) The denomination mark or special mark above the invoice code can be recognized by a special MR detector.

Second, GM quota invoice

(1) The back of the invoice is painted green and printed on the back.

Anti-counterfeiting patterns such as "Shenzhen national tax" and "tax emblem" will not fall off when the front is stressed.

(2) Under ultraviolet light, the producer seal of the invoice is orange.

(3) The denomination mark of 50 yuan (Arabic numerals) and the quota invoice of 100 yuan can be identified by a special MR detector.

Three. Motor vehicle sales, second-hand car sales, unified invoices for export commodities and special invoices for offshore oil enterprises.

(1) The invoice is printed on dry copy paper, and the back of the invoice is painted purple, with anti-counterfeiting patterns such as "S(GS)Z" or "Shenzhen National Tax" and "Tax Emblem" printed on the back, so that the front will not fall off under stress.

(2) Under ultraviolet light, the producer seal of the invoice is orange.

(3) The blue "anti-counterfeiting detection zone" printed above the invoice code can be identified by a special MR detector.

Four, the enterprise title invoice

(1) multi-joint enterprise title invoice. The invoice is printed on dry copy paper, the back of the invoice is painted purple, and the anti-counterfeiting patterns such as "S(GS)Z" or "Shenzhen National Tax" and "Tax Emblem" are printed on the back, so that the front will not fall off under stress.

(2) Single invoice or roller invoice without back coating.

(3) The blue "anti-counterfeiting detection zone" printed above the invoice code can be identified by a special MR detector.