To check:
Go to My Account.
Go to Tools.
Go to View Tax Summary.
Go to Preview my 1040.
Your estimates will be reported on line 65.
If they're not, go to your records and enter them in Turbo Tax:
Go to Deductions and Credits
Go to Estimates and Other Taxes Paid
Click Start or Update by Estimates
Click Start or Update by Federal estimated taxes for 2016 (Form 1040ES) and State estimated taxes for 2016.
Choose one that fits your situation.