Despite the new tax rate reductions of your Jobs and Growth Tax Relief Reconciliation Act of 2003, the superior marginal tax bracket for many retirees is really a whopping forty six.3%. Why? Because Social Security benefits are subject to income tax. Those affected are Social Security recipients who purchase the good fortune (misfortune?) always be subject to both the 25% income tax bracket and also the 85% inclusion rate for Social Security benefits. Julie's total exclusion is $94,079. Amer...