Who Must File a Return: Whether you must file a return depends on your gross income, filing status, and age. It doesn't matter whether you're filing taxes online or by mail.
Certain expenditures qualify as a deduction for your taxes. These expenditures are referred to as itemized deductions.
The standard deduction is a dollar amount that reduces the amount of income subject to tax. You cannot take the standard deduction if you are claiming itemized deductions.
The amount of standard deduction is based on a taxpayer's filing status. The standard deduction amount can change from year to year depending upon inflation.