I have a similar problem. I have investments in four publicly traded LLC's and have received K1's from each of them with Box 16 checked, but with no K3's attached. All four partnerships included a similarly worded cover letter stating K3's would not be available until a later date. One date was June 30, and the other 3 dates were all August 31. I have been advised by a Tax Professional that my only choice is to file an extension before April 18 and file my taxes when I have received and entered all K3 information into my tax return, meaning I will, in all probability, not be filing my taxes until September. By default, it would seem that I have to treat my State taxes in a similar fashion. I would appreciate any comments that add further insight into this situation.
