The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you. Related Content Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan. Alternative Investments - Going Mainstream Alternative investments are going mainstream for accredited investors. It’s critical to sort through the complexity. What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money.