My neighbor's only income for 2013 was 1099 consulting income (and a few hundred dollars he received from a premature IRA distribution which was not rolled over and will be considered income, I guess). Regarding the consulting, he worked at the client's location and did no work for the client from his home. He made the four estimated tax payments (three in 2013 and one in 2014) for estimated Federal tax and Illinois tax. He had no health insurance premiums in 2013.
Does he only have to file a US1040 (long form)and US1040-IL form? Does he need to file a US1040, Schedule C or anything else?
Thank you.