Standards of Withholding Rates for Various Incomes Article 7
Where a beneficiary prescribed in Paragraph 4 of Article 3-2 of the ITA is not specified or not in existence yet, in the year the trust deed takes effect, the beneficiary change takes effect, or the trust property increase takes effect, the trustee shall declare and pay the tax according to a withholding rate of 20% for the value or the increased portion of the value of the beneficiary's entitlement to such trust benefit.
中文原文 各類所得扣繳率標準第7條
本法第三條之二第四項規定之受益人不特定或尚未存在者，受託人於信託成立、變更或追加年度，應就該受益人享有信託利益之權利價值或權利價值增加部分，按百分之二十扣繳率申報納稅。