Despite the tax rate reductions from the Jobs and Growth Tax Relief Reconciliation Act of 2003, helpful ideas marginal tax bracket for many retirees is a whopping 46.3%. Why? Because Social Security benefits are subject to income income tax. Those affected are Social Security recipients who hold the good fortune (misfortune?) always be subject to both the 25% taxes bracket along with the 85% inclusion rate for Social Security benefits. The most straight forward way might be to file an ext...