If you haven't filed yet, step through the File
section of TurboTax until you reach the screen How do you want to pay your federal
taxes? Select the installment payment plan option, Continue, and
follow the onscreen instructions.
If you already filed, or you're unable to find this
option in TurboTax, you can apply for a payment plan at the IRS Payment Plans
and Installment Agreements webpage (make sure you've filed your return before
applying through their site).
For more information please click the link below.
https://ttlc.intuit.com/replies/4678634