Tax Collection Act Article 20

In the event that a taxpayer is subject to a delinquency charge for his/her/its failure to pay the tax by the deadline specified under the applicable tax act, a delinquency charge in an amount equal to one percent (1%) of the amount of said tax shall be charged for every three (3) days of delay. Where the period of delay exceeds thirty (30) days, the case shall be referred for compulsory execution. However, a taxpayer who is unable to pay off the tax within the statutory period due to events that are force majeure or causes not attributable to the taxpayer and who has applied for the deferral of the tax payment or for payment by installments within ten days after the cause of the aforesaid events along with concrete evidence and who has been approved by the authorities shall be exempted from the surcharge for delinquent payment.At the effective date of the amendment of this Act on November 30, 2021, if the period of delay has not exceeded thirty (30) days, the provisions of the preceding paragraph shall apply.
中文原文 稅捐稽徵法第20條
依稅法規定逾期繳納稅捐應加徵滯納金者,每逾三日按滯納數額加徵百分之一滯納金;逾三十日仍未繳納者,移送強制執行。
但因不可抗力或不可歸責於納稅義務人之事由,致不能依第二十六條、第二十六條之一規定期間申請延期或分期繳納稅捐者,得於其原因消滅後十日內,提出具體證明,向稅捐稽徵機關申請回復原狀並同時補行申請延期或分期繳納,經核准者,免予加徵滯納金。
中華民國一百十年十一月三十日修正之本條文施行時,欠繳應納稅捐且尚未逾計徵滯納金期間者,適用修正後之規定。

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