Individual 401k plan contributions for 2016, where is this input? In prior years it was accessed by going to "less common business deductions." Not so this year.

Follow these steps to enter your self-employed 401k contributions:

• Sign into your account and click Take me to my return
• Using Search (upper right of program) search self-employed 401k (including the dash) and click the Jump to from results
• Follow the TurboTax prompts to enter your self-employed 401k contributions

Thank you!  But why is it so hard to find?

And you meant for 2017, right?

oops yes 2017....  Using the Jump to from the answer above worked.