When this guide is useful
A business receives a notice affecting payments, returns or payroll reporting.
The distinction that matters
Identify the notice, period, response instructions and responsible professional before sending a response. Do not assume a balance notice proves the original return was incorrect.
A worked situation to investigate
A company receives a payroll notice after changing providers and cannot initially match the agency's payment credits.
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.