The American Institute of CPA’s has long recognized the problem of the late receipt of Form K-1’s for many taxpayers and their return preparers. On February 28, 2013, legislation was introduced in the 113th Congress that was suggested by the AICPA to address this.
As drafted the original tax return due dates would change as follows:
These changes would be effective for the 2014 tax years and the 2015 tax filing season.
More information on this topic at: AICPA.org