I converted my primary residence into a rental property in 2012. I just noticed now that I do not see prior years unallowed passive losses in 2015 (8582 form) to enter in 2016 tax filing because I did not carry over these unallowed passive losses in 2014 and 2015 tax filing. Q: Do I need to amend previous years (2014, 2015) tax filing to determine the total unallowed passive losses or can I add up prior years unallowed loss from 2012 to 2015 and enter it in 2016 tax filing?
