The Management, Utilization, and Taxation of Repatriated Offshore Funds Act Article 9

The account-handling bank shall, within the first ten days of each month, effect payment to the National Treasury of all the taxes withheld in the preceding month under Paragraphs 1 and 2, Article 5 and Paragraph 5, Article 6, and report to the tax authority-in-charge in the format prescribed by the competent authority.
中文原文 境外資金匯回管理運用及課稅條例第9條
受理銀行應於每月十日前將上一月內依第五條第一項、第二項、第六條第五項規定所扣稅款向國庫繳清,並依主管機關規定格式向該管稽徵機關申報。

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