Form 1040 and 1040SR are identical in every way except that 1040SR has bigger print. If you are 65 or older when you print out your return it will print on a 1040SR.
A 1040 is the tax return form you prepare here to send to the IRS. If you start entering data in this software you are preparing a Form 1040. Please look at it so you will know what you are sending to the IRS:
PREVIEW 1040
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/preview-turbotax-online-retur...
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