If you have already filed & your return has been accepted, you cannot change it.  

If your return has not been filed yet, you can go back & remove the amount.

To add, change or delete a current year federal tax refund to next year's taxes:

• Click on Federal Taxes (Personal using Home and Business)
• Click on Other Tax Situations
• Under Additional Tax Payments
• On Apply Refund to Next Year, click on the start or update button

If your return has not been filed & you applied a state refund to next years taxes, go back through your state interview.

I am inquiring about only filing my State Income Tax Return.

@AJJP3845  You posted on someone else's post that asked a different question.  Did you file a Federal return?  You cannot just file a State return without filing a Federal return.  

The TurboTax state program is designed to transfer information from your federal return. For this reason, TurboTax state isn't sold as a standalone tax-preparation product.

You can use TurboTax to prepare and file your federal return without your state—but not the other way around.

Can I prepare and file just my state return using TurboTax?

https://ttlc.intuit.com/community/filing-and-paying-taxes/help/can-i-prepare-and-file-just-my-state-return-using-turbotax/00/26408

I accidentally applied my state return to next year, when i wanted a refund payment this year.  I’m in Minnesota.  When this happened to you, were you able to fix it easily?

Can you clarify if you already filed your return?

Yes.  I filed it accidentally, yesterday.  I’m guessing I just need to file an amended state return

You should probably just call them.

Here's where to contact the Minnesota Department of Revenue.

@twebb0710