That 16 digits IS the License Code. It is for the Desktop program. I bought mine from Costco online too. Here's how mine went.
1/3/25 Bought Home&Business from Costco online. 20 min later got email with License Code and download link. Clicked on Download link. It took me directly to Turbo Tax to download. Had to pick my product then select Win or Mac. Program downloaded.
Had to go to my Downloads folder. Clicked on downloaded .exe file. It started but stopped saying I needed Microsoft Visual C++ with an install button. I clicked on it and it installed the MS Visual C ++. Then it continued to install Turbo Tax.
Checked on the License Agreement. Clicked on Install. Minute later it was done and launched.
Sign in to Intuit Account, had to get email code to enter.
Got License Code screen. Went and copied 16 digit code from email and pasted it into code box.
Got into program.
First thing I did was check for updates. Then I always go up to Online-Updater Preferences and check Ask me before getting updates.
Oh and you should edit your post and remove that License Code! Anyone can steal it and use it to download the program.
Where to find the License Code
https://ttlc.intuit.com/community/tax-topics/help/i-can-t-find-my-license-code/01/852973
How to get started with the Desktop program, install and activate it
https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/download-software-turbotax-com/L7u9oLEkq_US_en_US?uid=luqgvzrd
That 16 digit license key that you just gave to everyone on the internet is the key that allows you to download the desktop software. Did you expect it to be all numbers and no letters? If someone has not already stolen it, that is the key you need to use to download your software.
This is a public web site that can be seen by anyone—including scammers and would-be identity thieves who would love to contact you and pretend to be from TurboTax. Please remove the personal information you posted here ASAP by returning to your post and clicking the three little blue dots on the upper right to edit your post.
HOW DO I GET STARTED WITH TT DESKTOP