Hello, my situation is that I live in Indiana but work in Illinois, telecommuting about a third of the time. With Illinois raising their income tax rates a few weeks ago I did some checking and realized I could have been apportioning about a third of my income to Indiana. Going forward I will definitely be doing this since Illinois' income tax rate is now about 50% higher than Indiana's, but I am also considering refiling my previous years' returns because Illinois' old rate was slightly higher and I could probably net a few hundred dollars.
However, the process seems like a major pain in the ass involving getting corrected W2s, refiling returns in two states, possibly writing a small check to Indiana and hopefully getting a larger check back from Illinois (not know for being speedy with payments). If anyone else has gone through this process, I would appreciate some insight on how much of a time commitment I'm looking at if I decide to go after the money from the states.