How to Respond to an IRS CP2000 Notice (Without Making It Worse)
CP2000 means the IRS thinks something on your return doesn't match what payers reported. It is a proposal, not a bill — and the response window is short.
A CP2000 notice from the IRS is the most common automated underreporter inquiry. It compares third-party data (W-2s, 1099s, brokerage 1099-B, K-1s) to what you reported and proposes adjustments. You have 30 days to respond — and how you respond determines whether this stays small or becomes an audit.
Frequently Asked Questions
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