What Happens If You Ignore an IRS CP2000 Notice?
If you need the full explanation first, read: IRS CP2000 Notice Explained.
What Happens After You Ignore CP2000?
If the IRS does not receive a response, it may:
- Assess additional tax
- Add penalties and interest
- Send additional notices
Can the IRS Increase Your Tax Bill?
Yes. Ignoring a CP2000 notice may allow the IRS to finalize the proposed tax increase listed in the notice.
Can You Still Respond Later?
Possibly, but it becomes harder after deadlines pass and additional notices are issued.
Does Ignoring CP2000 Mean Criminal Trouble?
No. CP2000 notices are generally civil tax matters, not criminal cases.
Can CP2000 Be Wrong?
Yes. Some notices contain incorrect income matching or missing basis information.
See how to respond correctly here: How to respond to CP2000.
Bottom Line
Ignoring a CP2000 notice can lead to additional taxes, penalties, and IRS collection notices. Responding early usually gives you more options.
Disclaimer: Informational only.

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25 years of experience managing tax, accounting, payroll, and employment-related information portals. Editor of Accounting Portal since 2011.
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