Calculating Undistributed Net Investment Income For Trusts and Estates July 9, 2014 ~ lsaret Lewis Saret recently posted an article on his Forbes blog, which discusses how the Final NIIT Regs determine the undistributed net investment income of trusts and estates. Read the post here. Share this:TwitterFacebookLike this:Like Loading... Related Published by lsaret View all posts by lsaret