Financial transaction taxes are instruments used by governments to raise revenue and reduce large fluctuations in the stock market. There is debate as to the efficacy of financial transactions taxes yet governments around the world are utilizing them more and more. This comparative study of seven countries (Columbia, Finland, India, Japan, Sweden, Taiwan, and United Kingdom) is aimed at viewing the implementation and repeal of various FTTs. The study compares revenue gained from the tax, trading volume, and market volatility before and after the legislation was enacted. There are mixed results as to the overall effectiveness of curbing volatility in the market yet there is substantial revenue to be gained from implementation. While there is not “one size fits all” rate or scope for a country, there is evidence to suggest that trading volume will continue to rise as will revenues from the tax.