It depends on the rest of your tax situation. If you have no deductions and are only reporting your W2 wages and Social Security benefits, you could probably use the 1040EZ, however, TurboTax will choose which form is best for you based on your answers.
You can start with the Free Edition and enter your information and TurboTax will choose which form you should use. If you only have a W2 and SS benefits to enter, you will be able to use the free edition. If you have a bit of a more complicated situation, it will guide you to upgrade to a paid version of TurboTax.
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