Despite fresh tax rate reductions of the Jobs and Growth Tax Relief Reconciliation Act of 2003, tips for sites marginal tax bracket for many retirees is often a whopping 46.3%. Why? Because Social Security benefits are subject to income in taxes. Those affected are Social Security recipients who have the good fortune (misfortune?) pertaining to being subject to both the 25% taxes bracket and the 85% inclusion rate for Social Security benefits. If you answered "yes" to the above questions...