To apply part or all of your Federal refund to next year
Federal Taxes Tab or Personal (H&B version)
Other Tax Situations
Additional Tax Payments
Apply Refund to Next Year - Click the Start or Update button
To apply a state refund I think it will be on one of the last screens before you file state.
Or are you having the Turbo Tax fees deducted from your refund? Then you have to get Direct Deposit. Then you can send in an estimated payment for next year. Or pay the fees upfront with a credit card.
