The Taxpayer Rights Protection Act Article 18

Special tribunals for taxation shall be set up in the Supreme Administrative Court and High Administrative Courts to adjudicate the administrative litigation filed by taxpayers due to taxation cases.The special tribunals for taxation shall be composed of judges who obtained the certificate for judges specializing in tax cases issued by the Judicial Yuan.The judges adjudicating tax cases shall receive certain hours of professional training or on-the-job training every year.The Judicial Yuan shall promulgate regulations for the composition of the special tribunals for taxation, the standards by which the certificates for judges specializing in tax cases are issued, and the annual training required of the judges adjudicating tax cases.
中文原文 納稅者權利保護法第18條
最高行政法院及高等行政法院應設稅務專業法庭,審理納稅者因稅務案件提起之行政訴訟。
稅務專業法庭,應由取得司法院核發之稅務案件專業法官證明書之法官組成之。
辦理稅務案件之法官,每年應接受一定時數之稅務專業訓練或在職研習。
稅務專業法庭之組成、稅務案件專業法官證明書之核發標準、辦理稅務案件法官每年所應受之訓練及相關辦法,由司法院定之。

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