本研究探討稅率差異是否會影響台商海外子公司股利匯回。由於台灣目前對於國外稅額扣抵的方法採的是直接扣抵法，與大部分國家所採的國外所得免稅法及間接扣抵法不同，因此對於海外子公司只有在扣繳稅率若高於台灣營利事業所得稅率時，才必須負擔匯回的稅負。本研究將稅率差異的部分，分為海外子公司平均稅率以及扣繳稅率，來觀看在這兩個稅率之下對於股利匯回的影響。研究結果顯示，當國外扣繳稅率高於我國營利事業所得稅率時，其匯回的數目會降低，表示扣繳稅率的確是會阻礙公司股利匯回的一項障礙；但是當海外的平均公司稅率越高，則股利匯回的數目會增加，本研究認為盈餘大部分皆從稅率較高的國家匯回，因此導致這樣的結果。最後本研究將對台灣目前對於股利匯回的稅制進行建議，以健全台灣目前對於企業課稅的稅制。 / This study investigates the relationship between the tax rates and the dividend repatriation among the overseas subsidiaries of Taiwanese companies. Due to the adoption of “the direct method” for foreign tax credit, different from other countries, the Taiwanese companies will afford repatriation tax when they repatriate dividends from the countries whose withholding tax rates are higher than Taiwanese corporate tax rate. The difference of tax rates between countries defined in this study consists of two parts－average tax rate of overseas subsidiaries and withholding tax rates. And the result is the higher withholding tax rates overseas subsidiaries afford, the lower dividends are repatriated, which means the withholding tax is the barrier of the dividend repatriation. Another result shows the higher the overseas subsidiaries average corporate tax rates, the more dividend repatriates, which suggests that the dividends repatriate from the countries with higher corporate tax rate. Finally, this study also gives some recommendations for the Taiwanese tax policy about dividend repatriations in order to reform the corporate tax system.