Enforcement Rules of the Income Tax Act Article 58

According to Paragraph 3, Article 71 of the Act, whether the gross consolidated income exceeds the total of the amount of tax exemption and the amount of standard deduction for the same year shall be reviewed and calculated by the tax authority based on the information acquired during investigation. Where the amount of reviewed and calculated gross consolidated income exceeds the total amount stated in the preceding paragraph and the taxpayer fails to file income tax returns according to law, the tax authority shall proceed in accordance with Article 79 of the Act.
中文原文 所得稅法施行細則第58條
依本法第七十一條第三項規定,個人綜合所得總額是否不超過當年度規定之免稅額及標準扣除額之合計數,稽徵機關應依查得資料核計之。
經核計其綜合所得總額超過該合計數,如納稅義務人未依法辦理結算申報者,稽徵機關應依本法第七十九條規定辦理。

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