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

You might complete a 1040 instead of a 1040EZ if you have more complex financial situations, such as itemized deductions, self-employment income, or certain credits that are not available on the simpler form. The 1040 allows for a broader range of tax situations, including income from various sources and adjustments that can affect your tax liability. Additionally, if you have dependents or need to claim specific tax credits, the 1040 provides the necessary sections to do so.