I am working with Bob (soCalActuary) on this and can explain a little more.
This was an LLC that had both DB and 401k Plans. The sole owner was paid on a W2, which is what probably triggered the audit at business level. IRS denied the W2 compensation and therefore also denied the deduction for the 401k deferral and DB contribution for years 1 and 2. As to what happens to contributions made, no guidance was provided. Just a simple denial of deduction.
By year 3 and 4, LLC had elected to be taxed as S corp and things were fine.
We will be amending year 1 and 2 Form 5500 for each plan.
No contributions made in year 5. The client wishes to terminate both plans in year 6.
The question is what happens to the earnings on contributions from year 1 and 2 and brought forward to the time of termination. The denied deduction amount may be refunded as a mistake in fact but what about the earnings on the refunded amount? Are the earnings also to be refunded, are eligible for rollover or what else can be done.