The position of the invoice seal is generally on the front of the invoice, generally in the lower left corner or the lower right corner. The specific location may be different due to the invoice type, for example, the chapters of ordinary VAT invoices and special VAT invoices will be different.

The following are matters needing attention when stamping the invoice seal:

1. Confirm the seal position: different types of invoices and different billing companies may have different seal positions, so you need to confirm the specific seal position and additional information before stamping to avoid mistakes.

2. Don't block important information: When stamping, the invoice seal should be located outside the core information area of the invoice to avoid blocking important information, such as payment amount, seller information, buyer information, etc.

3. In principle, tampering is not allowed: if it has been stamped, it is not allowed to change or cancel the invoice seal at will before receiving the notice of change or cancellation in the future. At the same time, because it involves issues such as invoice deduction, unauthorized stamping and post-processing may also lead to disputes.

4. Protect the security of invoices: sealed invoices should be properly kept to prevent loss, ashing or damage. In case of safety problems, you should contact the drawer or relevant departments in time to handle or reissue the invoice.

Care must be taken to ensure that invoices comply with legal and financial regulations and can be used normally in future deductions and other processes.