You can only file Form 1040EZ if the following are true:
"Single or Married Filing Joint
Under age 65
No dependents
Interest income is below $400
Income or combined incomes (Form W-2) below $50,000"
If you don't fall within those guidelines you will have to file either Form 1040A or Form 1040.
Form
1040A:
"Income or combined incomes below $50,000
Capital gain distributions, but no other capital gains or losses
Only IRA or student loan adjustments to your income
