Despite fresh tax rate reductions of the Jobs and Growth Tax Relief Reconciliation Act of 2003, the top marginal tax bracket for many retirees can be a whopping forty-six.3%. Why? Because Social Security benefits are subject to income income tax. Those affected are Social Security recipients who have enough good fortune (misfortune?) pertaining to being subject to both the 25% income tax bracket and also the 85% inclusion rate for Social Security benefits. For 20 years, essential revenue ...