The 1040SR is the same as the regular 1040 with larger font size. 1040-SR will automatically appear if you are 65 or older.
**Mark the post that answers your question by clicking on "Mark as Best Answer"
You enter all your info and income into Turbo Tax. Then Turbo Tax fills out the 1040 or 1040SR for you.
Before filing, You can preview the 1040 or print the whole return