I tried Mike9241's methodology which did not work today 2/28/26. His suggestion follows this question. I was able to complete step 7, but instead of getting to a page for identifying an overpayment to be applied. I was taken back to A few things before we wrap of your state taxes page. It appears as though you want Turbotax preparers to send in paper forms to apply an overpayment rather than submit state returns online.
I use desktop so hope this works. More hoops than a circus to jump through
- open the state tab and see if there's a link for estimated tax payments - if so, click on it. If not you'll need support
- on next page select estimated tax payments for next year
- yes you want to pay estimated taxes
- yes you'll be an illinois resident
- leave amounts and exemptions blank unless you really want TurboTax to generate estimates for 2026
- continue until you reach the payment option page
- Select any except "no estimates" and continue
- the next page should say "apply overpayment"
- i would select "apply a specific amount" continue
- enter the amount, and you're done
Thursday
