Capital Gains Tax. Thomas purchased 300 shares of stock A for $12 a share and sold them more than a year later for $10 per share. He purchased 600 shares of stock B for $50 per share and sold them for $75 per share after holding them for more than a year. Both of the sales were in the same year. If Thomas is in a 25% tax bracket, what will his capital gains tax be for the year? If Thomas is in a 25% tax bracket, his capital gains tax for the year is $ (Round to the nearest dollar.) ains