I know you don't want to hear this but it is the truth, as opposed to any statements anyone made about processing your return by January 3rd or soon after.

See the REAL schedule at this posting!   https://ttlc.intuit.com/questions/3405630

Go to this link and learn why the earliest that the IRS will even see your tax return filed is January 23, 2017, and the earliest that the IRS might deposit your refund is February 3, 2017.  Go to this https://ttlc.intuit.com/questions/3405630

ALSO some TurboTax forms are not even ready yet it seems
See here for Federal Tax Form availability dates:
https://ttlc.intuit.com/questions/1908854-forms-availability-table-for-turbotax-federal-products-exc...
See here for state Tax Form availability dates:
https://ttlc.intuit.com/questions/1908857-forms-availability-table-for-turbotax-state-except-busines...

Why TurboTax even mentions January 3 is a real doozer of a question because it makes no sense, and in fact is apparently untrue as well!   Once they do open for submittal, maybe later this week but so far no one here knows! - we here are not employees and TurboTax ain't telling anyway!,  they will stick your filing in a vault and not do anything with it until the IRS opens on January 23, 2017.

No point rushing it turns out!!!!  And lots to lose too in fact!

Certainly, you can start entering all the various personal data that you have, and if you want to try to guess what your Form W-2 will look like and also any Forms1099 that you might receive, such as Interest Income, feel free to do so for ESTIMATION purposes only.
However, read this post to learn why others have found it to be a very serious mistake to go ahead and submit your filing before you have gotten all your W-2s and 1099s.   https://ttlc.intuit.com/questions/3405630

Read what folks who filed in a hurry had to say last December and January.READ THIS: https://ttlc.intuit.com/questions/3405630

thank you

You are more than welcome - and I wish other folks would only take the time to read.
Every year we, and we're not employees of TurboTax just volunteers, go through this because TurboTax advertizes a date of File it Yesterday, and then folks hit a wall.  Besides, it is a real bad mistake to do it anyway and does not get you a refund any sooner, and in fact may delay your refund.  So, enjoy the rest of the day, and submit your return later this month, after all the paperwork has arrived -W-2, 1099s.