Stamp Tax Act Article 20

Books and records for documenting the receipt of monetary payments shall be affixed with tax stamps for each transaction. In cases where the payee of a monetary payment signs on the payment book of the payer in lieu of issuing a receipt, the payer will deduct the amount of stamp tax from the payment and affix the same amount of tax stamps on the book on behalf of the payee. In a transaction where a temporary receipt is issued before the delivery of a formal receipt, or a receipt is issued each time for an installment payment before the issue of a gross receipt, such temporary receipts or installment receipts shall be affixed with a sufficient amount of tax stamps. At the time a formal receipt or gross receipt is issued, the payee shall recover the receipts already issued and paste them to the back of the formal or gross receipt, and affix additional tax stamps to make up the difference in stamp tax due, if any. If the payee fails to paste the temporary receipt or installment receipts to the back of the formal receipt or gross receipt issued, he/she shall affix tax stamps corresponding to the total amount indicated in the receipt.