The IRS will begin accepting tax returns on Jan. 29,
2018. TurboTax will allow you to prepare your return, but until the IRS
begins accepting returns, you will not be able to file your return with the
IRS.
Also, the IRS does
not have all of the forms finalized and ready for filing, please see the
following TurboTax FAQ for information on when tax forms will be available for
preparation and filing:
https://ttlc.intuit.com/replies/3319876
Please see SuperUser Xmasbaby0's answer for information on this matter:
https://ttlc.intuit.com/replies/6466079
