I retired March 31st 2016. My wife is on disability and has not worked any of 2016. I have not worked since retirement. I am currently 65 years old. My birthday is April 15th. The IRS says I cannot earn more than $15,800 in 2016 because I am not at full retirement age. My income for 2016 is at 76K which includes money from my IRA (not company contributions), Social Security and money from my employer for the 3 months I worked before retirement which also includes short term incentives and bonus. My question is, "Is there a form I need to submit to the IRS to prove I did not earn any income after my retirement date". Thank you.