Question

Why might you complete a 1040 form instead of a 1040 EZ tax
form?

Answer 1

You might fill out a 1040 instead of a 1040EZ if you don't meet the right requirements.
To fill out the 1040 EZ your taxable income must be less than 100,000, you claim no dependents, taxable interest is less than 1,500, etc

If you don't meet certain requirements for the 1040 EZ you have to fill out a 1040

Answer 2

you may use Form 1040EZ if you meet all the following conditions