The change is with the Form 990 Extension. Back in July as Carrie writes, the Surface Transportation and Veterans Health Care Choice Improvement Act of 2015 was passed by Congress. In this bill, nonprofits can extend their return by one six month period. This replaces the previous two three month extension for filing. The effective date is after December 31, 2015. Carrie points out for your 2015 return you would still fall under the two three month extension. Read here entire post here.