Local Government Act Article 69

To ensure balanced development of the local governments, higher levels of government shall provide subsidies to local governments with lesser financial capabilities and may receive assistance funds from local governments with greater financial capabilities.If a local government at any level fails to collect income that it is entitled by law to collect, the higher levels of government may reduce the amount of subsidy at their discretion. For local governments that have achieved results in generating other sources of income, higher levels of government may increase the amount of subsidy at their discretion.The subsidies stipulated in Paragraph 1 shall include the subsidy item, recipient, subsidy percentage, and handling guidelines. The guidelines on the allocation of subsidies shall be formulated separately by the Executive Yuan and county governments.
中文原文 地方制度法第69條
各上級政府為謀地方均衡發展,對於財力較差之地方政府應酌予補助;對財力較優之地方政府,得取得協助金。
各級地方政府有依法得徵收之財源而不徵收時,其上級政府得酌減其補助款;對於努力開闢財源具有績效者,其上級政府得酌增其補助款。
第一項補助須明定補助項目、補助對象、補助比率及處理原則;其補助辦法,分別由行政院或縣定之。

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