From July 1, 2009, Guangdong province started to use the new local tax invoice. Which can identify according to the following method:
1. Pervious to light examining method: the invoice copy of the new tax invoice using the Guangdong province local tax invoices anti-counterfeiting paper printing.Pervious to light, you can see black and white watermark images of black watermark for "GDLT" letters, white watermark for tax badge. Black watermark lines around the paper are thin and transparent and white.The white watermark lines around the paper thicker and opaque, grey.
2. Finger touching: use the fingers caught bill couplet sliding touch, can feel sense of blackwater with float protruding, white watermark has the feeling of depression.
3. Water droplets drops contact method: touch the tiny water droplets watermark on the line, if it is the invoice base paper, paper suction wet gradually; If the forgery of counterfeit watermark paper in ink printing way, the water droplets were cut off ink on paper is retained.
4. Invoices identification method: bill couplet by the state administration of taxation specified coloured fluorescent ink overprint of invoices, for big red ink, fluorescent reaction to orange light.
5. The temperature variable ink identification method: the new "the Guangdong province local tax general fixed invoice" use the special temperature ink printing "LT" design. Room temperature pattern is green, with fingers paper friction or to design heat turns yellow, reply to room temperature after the design change back to green.
6. Printing identification method: the new "Guangdong province local tax general fixed invoice invoice code no. 8, 12, and invoice number with special printing digital jet printing technology, under the virtual real number.
