Making Your Tax Bracket Work Have you explored all your options when it comes to managing your taxable income? Related Content Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you. The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding.