@ Sankofa
What exactly did you buy? If you purchased the routine desktop software, then this answer would apply. A few stores also sell a new product this year--a license for an Online version, as @ VolvoGirl addressed above, which can be confusing.
If you bought regular desktop software (not the Online version sold in some stores), you can't just sign into Online TurboTax and expect to enter a desktop license code. To use the migration offer for free Online Premium, you have to do it through a special offer link, and I'm not familiar with your specific popup. I didn't use that method to get to the Online TurboTax offer and into Online TurboTax. All of mine was done using the features in the initial installation screens.
All I can do is tell you my story, and maybe that will help at some point. I'm using Windows 10, and this is what I did to move to Online Premier, which worked seamlessly. This is kind of from memory since it was a few weeks ago, so I may not have the screens in order. Here's my experience:
Even though I knew it would not work on Windows 10, I bought a Deluxe download license through Costco because it was their TurboTax sale time and cheaper than TurboTax, and I was aware of the migration offer that would be presented during installation for any edition of desktop software. So I then downloaded the installation file at the regular TurboTax product download site. I launched the installation file as though I was installing the software, and after a couple of screens, it recognized I was using Windows 10.
Then it asked me if I wanted to use an offer to move to Online Premium for no additional cost for 1 Federal return and 1 state and no efile fee. That particular installation screen had a button to use for the special offer if chosen. I don't remember if I had to enter the desktop license first, and then log in with the Online account credentials, or provide the credentials first then the license code. Or maybe both steps were on the same screen; I can't remember the order of all the screens. But in any case both steps were there with good instructions. Then it took me immediately to Online TurboTax in my browser, and I could see in the top left corner that I was indeed in Online Premium.
I started a return, and after the first few screens, and once the full menu had appeared, then out of curiosity I checked my fees by using the shopping cart icon in the top right. A popup then confirmed that the standard prices for Online Premium were crossed out and $0 displayed. And tiny print at the bottom of the fee section thanked me for using the special offer and that it would be free as long as I filed by the April filing deadline. I then transferred my 2024 data file into the online product, a process that also re-starts the return interview.
FAQ: TurboTax Desktop to Online Migration Offer Terms (Tax Year 2025)
https://ttlc.intuit.com/turbotax-support/en-us/help-article/marketing/ty25-ttd-direct-offer/L0aUgksJ...
