Income Tax Act Article 102-4

After receiving a tax return filed by a profit-seeking enterprise for its retained earnings, the tax authority shall appoint personnel to conduct an investigation and to verify the amount of its retained earnings and the amount of income tax leviable thereon. For implementation of the investigation and verification, Articles 80 through 86 of this Act shall apply mutatis mutandis.
中文原文 所得稅法第102-4條
稽徵機關接到未分配盈餘申報書後,應派員調查,核定其未分配盈餘及應加徵之稅額,其調查核定,準用第八十條至第八十六條之規定。

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