The Compilation and Administration of Education Expenditures Act Article 3-1

Any increase in the income tax levied on the salaries of teaching and other staff at public and private preschools, elementary, and junior high schools by the central government, in accordance with the law, shall not be included in the total amount when calculating the 23% stipulated in Paragraph 2 of the previous article. Any additional government income derived from such taxation shall be placed in a separate special fund and used exclusively to enhance the quality of early childhood education, care services, and elementary and secondary education.
中文原文 教育經費編列與管理法第3-1條
中央政府就公、私立幼兒園、國民小學及國民中學教職員之薪資依法課徵所得稅所增收入額度,不計入前條第二項百分之二十三算定之金額,並以外加方式編列專款,專用於提升學前教育與照顧服務及國民教育品質。

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