I don't know about other e-filers, but it they are using the 2016 out of date form it might lead to audits since the IRS has yet to approve the 2017 electronic version of the form. TurboTax will not release the form until the IRS says that it can be released. As of now, it is estimated to be included in the 3/8/2018 update.
TT does not create or submit the form the IRS does. The IRS creates an electronic version of the form called a schema which is a data protocol that tells TT how to encrypt the from data so the IRS computer can decrypt it. The IRS has not done that and keeps pushing the estimated date out.
The "form" you see is simply a look alike of the paper version for the form that is only used for your data entry. e-file "forms" never get transmitted to the IRS, only the encrypted data that you entered gets sent to the IRS and must be in the format specified by the IRS or the IRS computer could not read it.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
