Despite brand new tax rate reductions among the Jobs and Growth Tax Relief Reconciliation Act of 2003, the superior marginal income tax bracket for many retirees is a whopping forty-six.3%. Why? Because Social Security benefits are subject to income tax. Those affected are Social Security recipients who check out good fortune (misfortune?) to be subject to both the 25% income tax bracket as well as the 85% inclusion rate for Social Security benefits. Conversely, earned income abroad, and pass...