You need to file PY resident returns for IL and MA, and identify the sources of your 2016 incomes appropriately. The state interviews will have the necessary screens to confirm or enter those amounts (AD pay to IL, MA pay to MA).
Active-duty military are considered to live in their state HOR no matter where they are stationed. Their active-duty pay is considered to be earned in their state HOR.
When you complete the Personal Interview:
- Select "Massachusetts" as your state of residence (as of 12/31/2016);
- Answer "Yes" when asked if you "Lived in another state in 2016?" The other state would have been "Illinois"
- When asked if you "Earned money in another state?", answer "Yes" (that state would have been Illinois)
