Not sure where to place this question. If there is a better forum subsection, please let me know and I can repost it there.
Anyway, I created a Solo 401k for myself (and self only) through Vanguard many years ago. Used it for only 1 tax year and then decided not to use the 401k and moved the funds out (the transfer was legal/ taxes were paid, etc). It has since sat unused for years. I was initially informed it would shut itself down by a Vanguard representative but that is not the case. So, I finally figured I would go through the process of myself and now the IRS is requesting a lot of documentation and $3,500 to shut it down properly.
Obviously, I really do not want to do all this paper work (or hire someone) and also pay a large fee to close this account that was barely ever used. Not really looking to get into a debate about whether or not to use it, why I'm an idiot for ever opening it, etc. I just want to know if there are bigger problems coming for me down the road if I let it continue to sit around empty.
Is there any harm in calling the IRS to cancel the request and then continue to leave it idle?
Thanks in advance for the insight. I appreciate it.