Stamp Tax Act Article 23

Violation of Paragraph 1 of Article 8 or Articles 12 to 20 herein for failing to affix tax stamps required or affixing insufficient tax stamps shall be subject to a fine at five to fifteen times the tax owed in addition to making up the tax stamps required. Late payment of stamp tax in cases where collective payment applies shall be subject to the actions stipulated in Article 20 of the Tax Collection Act; if the payment is more than thirty (30) days in arrears, the case shall be forwarded to the court for enforcement and the violator shall be imposed a fine at one to five times the tax owed, depending on the severity of the violation. Violation of Article 4 herein shall be subject to a fine of not more than 1,000 yuan, depending on the severity of the violation.
中文原文 印花稅法第23條
違反第八條第一項或第十二條至第二十條之規定,不貼印花稅票或貼用不足稅額者,除補貼印花稅票外,按漏貼稅額處五倍至十五倍罰鍰。
以總繳方式完納印花稅,逾期繳納者,應依稅捐稽徵法第二十條之規定處理;逾三十日仍未繳納者,除由稽徵機關移送法院強制執行外,並依情節輕重,按滯納之稅額處一倍至五倍罰鍰。
違反第四條之規定者,除漏稅部分依第一項處罰外,應按情節輕重,處一千元以下罰鍰。

English translation for reference only; the Chinese text prevails. Not legal advice.