It doesn't matter which form you file. Form 1040 and Form 1040-SR are the same, except that Form 1040-SR has bigger print. For 2024 tax returns, if you (or your spouse if filing jointly) were born before January 2, 1960, TurboTax will print Form 1040-SR. If you were born on or after January 2, 1960, you cannot use Form 1040-SR.