Negotiable Instruments Act Article 72

The holder may refuse to receive payment of the bill before the maturity date.The drawee that makes payment before the maturity date does so at their own peril.
中文原文 票據法第72條
到期日前之付款,執票人得拒絕之。
付款人於到期日前付款者,應自負其責。

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