You can prepare 2017 1040-es vouchers using your estimated 2016 income. Select the "federal taxes" tab then "other tax situations." Select "form w-4 and estimated taxes."
Say no to the "adjust how much tax you pay" screen since this screen is about adjusting your withholding from a W-2. Say “prepare now” to the "estimated taxes for 2016" screen. This will ask you about what you expect your 2017 income to be & prepare the vouchers accordingly.
If you have already filed your 2016 tax return, sign into your Turbo Tax Online account.
From the Welcome Back Screen, select Visit My Tax Timeline.
From the list of Some Things You Can Do, select Add a State. You are not going to add a state, but this will bet you into your tax return. From here:
Select Federal Taxes
Select Other Tax Situations
Select Start or Update next to W-4 and Estimated Taxes