Aside from her work at the FTC, she feels that her main expertise is still in tax systems. When former minister of finance Wang Chien-shien promoted the "two taxes into one" program, she was a key staff person. And it is said that the adjustment of the tax rate and the improvement of the tax rate structure was entirely in Chao's hands.
除了這幾年在公平會的閱歷，趙揚清自認最專精的還在稅制，當年曾是財政部長王建推動「兩稅合一」的得力幕僚，舉凡所得稅率的調整乃至稅率結構的改善，皆出於她之手。