How to write the certificate of loss of VAT invoice? It was stolen from the safe. Answer: On the one hand, the relevant materials of the report, or the proof and copy of the report investigation issued by the public security organ should be submitted to the tax authorities for the record, so as to reduce the amount of fines imposed by the tax authorities for improper custody of invoices. On the other hand, it is necessary to form a written certificate of the number of copies, invoice code, invoice number and other relevant invoice information of the lost invoice, send it to the tax authorities for the record, and publish it in the party newspapers and periodicals above the ground to declare it invalid. And submit the newspapers and periodicals that published the lost invoices and the proof of newspaper publication to the tax authorities.