I have deleted and re-entered the state form multiple times on MS Edge browser. I just tried with Google Chrome and got the same error. Out of curiosity I went ...
Thank you, SteamTrain.
I am trying to fill my Illinois state tax return. Everything else seems to be ok--property tax credit, IL's handling of retirement incom...
I have tried all the suggestions and still no luck. In addition to everything I've listed above, I
- deleted my W-2 form
- cleared the browser cache
- logged of...
