Get your taxes done using TurboTax

Don't know why it's not working for you.  Is it for a state refund?

 

To change the entry you made to apply 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 and answer NO or delete the amount.

 

For state go through the State tab again, probably near the end and look for that screen again to change it.  Change it to No and delete the amount.