IRS NOTICE
CP2000 — Proposed changes (underreporter)
A proposed change — not a final bill — sent when income reported to the IRS by third parties doesn't match the return. It proposes additional tax and invites a response.
General information only. Not legal or tax advice.
Typical response window
Typically about 30 days. The window printed on your notice governs — always confirm it against your actual notice.
What the first hour looks like
Match the IRS's third-party data against the return, note where they differ, and route for review.
Starter document checklist
- The CP2000 notice and its response form
- The filed return for the tax period
- The third-party documents being matched (1099s, W-2s, K-1s)
- Records supporting the amounts you reported
- Any prior correspondence on this period
Do the whole first hour in one place
TaxRiskOS captures the notice, computes the deadline, builds the checklist, flags whether it needs partner or counsel review, and produces a clean handoff packet — the first hour, made repeatable. It documents process, not advice.