I work an indefinite contract assignment in Iowa where I work on-site. While I rent an apartment in Iowa, I still get my bills, voter registration, driver's license, car insurance, doctor, etc. all remain in Illinois. My employment agency with the contract (in Michigan) withholds Illinois taxes. Illinois.
1-A. Illinois and Iowa have a reciprocity agreement. Do I have to file taxes in both Iowa and Illinois?
1-B. Do I file as a resident in Illinois (where my permanent residence is and where my withholding was sent) and a non-resident in Iowa or do I file as a Iowa resident and then a non-resident return for Illinois?
1-C. Do I even have to file a non-resident return in either state?
2. I have a primary car in Illinois, but bought a second car in Iowa for use when I am on-site there. I paid $2399 in sales taxes for this second car for use in Iowa. Can I deduct the state sales tax in either state?
