There are three different types of tax forms available to individuals: Form 1040, Form 1040A, and Form 1040-EZ. Form 1040 is the most widely used and can be filed regardless of your situation. Taxpayers can use Form 1040 no matter what their filing status is, no matter what types of income they earn, and no matter what deductions and credits are available to them.
On the other hand, Form 1040A and Form 1040-EZ have certain limitations on the types of income you can report and the types of deductions and credits that are available. For example, individuals that elect to itemize deductions (Schedule A) must use Form 1040. Self-employed individuals (Schedule C) must also use Form 1040. And taxpayers who earn income from selling stock (Schedule D) can only report it on Form 1040.
Individuals are allowed to use Form 1040A if:
Individuals are allowed to use Form1040-EZ if: