When this guide is useful
This fictional case concerns employee data before a proposed contribution.
The distinction that matters
The example shows why an owner-only estimate can be incomplete. The administrator needs accurate employment, compensation and related-employer facts.
A worked situation to investigate
A fictional salon adds staff and shares an owner with another business before requesting a plan contribution estimate.
The example is illustrative. Begin with the underlying event and its source documents, then separate missing facts from disagreements about their treatment. Work through the checks below in the order that matches your file, rather than treating a completed checklist as a tax conclusion.
Build a traceable handoff
Identify the affected person, entity or property and the relevant period. Keep original evidence, corrections and the reviewer's written conclusion connected. If the facts change after review, preserve the earlier version and ask whether the change affects implementation.