How deduct individual/solo 401(k) from personal taxes when not via W-2?

This year I started an individual/solo/self-employed 401(k) as have my own s-corp and am the only employee.  ~$19k from me as employee and ~$12k from me as employer.

However, I did not start it Jan 1 where I might withhold via W-4 setup each pay period, but instead just wrote checks (i.e. my W-2 at the end of the year will not reflect my personal contributions).

 

So, how will I deduct this in TurboTax personal? For the business contributions I'm fine.. will just be an expense. But for the personal, will there be a place in Turbotax personal where I claim it since it wasn't withheld and won't be reflected on my W-2?

 

Thank you!