The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you. Share | Related Content Making Your Tax Bracket Work Have you explored all your options when it comes to managing your taxable income? Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.