I’m in the process of reviewing the Tax Cuts and Jobs Act (the “Act”). The best source I’ve found thus far for understanding the act as a whole and for obtaining basic explanations of its individual provisions is the KPMG study under this link: https://home.kpmg.com/content/dam/kpmg/us/pdf/2017/12/tnf-conference-agreement-dec18-2017.pdf However, if any readers of this post know of any better resources for the above purpose, please let me know by e-mail.
However, my main focus in studying the Act is on identifying and understanding the provisions of the Act that affect the federal taxation of single- and multi-member LLCs and their members. The best source I have found so far for that purpose is Lou Vlahos’s posts in his website entitled Tax Law for the Closely Held Business. The link for that website is https://www.taxlawforchb.com/
Again, however, if anyone knows of a better source concerning the impact of the Act on LLCs and their members, please send me an email about it.