You can amend your return but you will need to wait for your
tax return to either be rejected or accepted, if it is rejected you make any corrections or add information that you need to include, correct any other
errors on the return and resubmit it. If it is accepted, you will need to amend your return so that you can make any corrections or add information that you need to include.
Please
be aware that Form 1040X will not be available to prepare in TurboTax until
mid-February, but once it is available, you will be able to prepare and print
your amended return so that you can mail it to the IRS. You can not e-file an amended return
as this cannot be filed electronically. The form is only filed on paper,
so it will need to be printed and filed by mail.
Please see the following TurboTax FAQ for instructions on how to amend your 2016 tax
return, if necessary, in TurboTax.
https://ttlc.intuit.com/replies/3288565
