E-File Income Tax Return. E-File is the term for electronic filing or sending your income tax return from tax software via the Internet to the IRS or state tax authority. It's simple and efficient and has become increasingly popular since it was introduced nationally in 1990. In 2016, nearly 90 percent of federal taxes were filed electronically.Is tax bracket based on AGI?
Tax brackets and marginal tax rates are based on taxable income, not gross income. Taxable Income Taxable Income Taxable income is a layman's term that refers to your adjusted gross income (AGI) less any itemized deductions you're entitled to claim or your standard deduction.