Legal analysis: 1, the seal on the invoice is not clear. You can add a clear seal next to it or directly void the scarlet letter of the invoice and issue a new invoice. 2. The invoice shall be stamped with the special invoice seal, and shall not be stamped with the financial seal or official seal. 3. Invoice cannot be stamped with financial seal and special invoice seal at the same time. 4. If the special seal of invoice is covered upside down or crooked, the invoice is valid as long as it is clear. 5. The invoice shall be stamped with the special seal for the new version of the invoice, not with the old version, nor with both the new version and the old version. 6. The Measures for the Administration of Invoices in People's Republic of China (PRC) has clear penalties for those who do not affix the special invoice seal. In addition to ordering it to make corrections, it also confiscated its illegal income and imposed a fine of 6,543,800 yuan.

Legal basis: Measures for the Administration of Invoices in People's Republic of China (PRC).

Article 2 Invoices with a uniform national style shall be determined by State Taxation Administration of The People's Republic of China, People's Republic of China (PRC). Uniform invoices within the scope of provinces, autonomous regions and municipalities directly under the Central Government shall be determined by the state taxation bureaus and local taxation bureaus of provinces, autonomous regions and municipalities directly under the Central Government (hereinafter referred to as provincial tax authorities).

Article 3 The basic invoice forms include stub forms, invoice forms and bookkeeping forms. The stub shall be kept by the payee or drawer, the memo shall be kept by the payer or payer as the original voucher for payment, and the account shall be kept by the payee or drawer as the original voucher for bookkeeping. The tax authorities at or above the provincial level may increase or decrease other invoices according to the needs of invoice management and taxpayers' business operations, and determine their uses.