You can use TurboTax to file state returns, but you are going to run into a few issues:
-
You will need to still prepare your federal and Idaho returns. TurboTax prepares state returns by pulling the information from the federal return, so you will need to complete your federal return again and make sure it is exactly the same as you originally filed. You cannot just directly prepare state returns. This also means if you aren't qualified for the Free Edition, then you will have to pay for the Federal and Idaho even though you already completed them.
-
The bigger problem is it sounds like you also need to amend your Idaho return (I am assuming that is your resident state) to get credit for taxes paid to other states. This means you are going to have to prepare your Federal and Idaho returns just like you did with CK. Then, you are going to have to trick the program into thinking you filed them through TurboTax by telling the program you are going to paper file the returns. You will then be able to go back after you "file" the returns and amend them. You will amend your returns by adding two new states. The end result is you will have two new state returns to file, one Idaho amended return now showing the credits for taxes paid (you will have to go back through Idaho to make sure you get the credit), and possibly an amended Federal return depending if there are any changes to your federal deductions as a result of the state taxes paid.
-
You will need to paper file your Idaho amended return and your two new state returns. Since you are going to have to tell the program that you paper filed your federal return in order to prepare the state returns, this means you will have to also paper file your state returns
-
You are likely going to want to work in the desktop program, not the online. Given the nature of everything you are going to need to do, it is likely you may make a mistake at some point and need to start over. The desktop program is far more forgiving when you make mistakes then the online program. https://turbotax.intuit.com/personal-taxes/cd-download/
So, as you can see, this won't be easy, but it is possible. The other option is to use the federal return you have completed already to manually figure out your two new state returns as well as your amended Idaho return.
