"In the process of drafting conforming amendments, the Act inadvertently deleted the provisions in the Internal Revenue Code that permit catch-up contributions. As a result, catch-up contributions, either pre-tax or Roth, will not be allowed after this year. To address this error in the legislation, Congress would need to pass additional legislation to reinstate the catch-up provisions. Although it seems that Congress will act on this, the time frame is unknown. "
Assuming that Congress fixes this glitch, catchup contributions made by employees whose wages exceed $145,000 will no longer be tax free!
Watching laws being created is like watching the ingredients going thru a grinder to make sausage - a frigging bloody mess!