CP2000A: Proposed Changes to Your Tax Return
Notice Instructions: Reply by the date on your actual notice, using its response instructions.
A proposed change deserves a comparison with your records—not an automatic agreement.
CP2000A belongs to the CP2000 notice series. Third-party income or payment information differs from your return. The proposed change may increase, decrease, or leave your tax unchanged; the notice is not a bill.
Read The IRS Guidance For CP2000A · Source checked October 11, 2026.
Common Triggers
- Income or payment information that differs from the filed return
What to Check Next
- Step 1: Compare every proposed item with your filed return and supporting records.
- Step 2: Follow your notice’s instructions to agree or disagree; include supporting evidence.
- Step 3: If other income, credits, or expenses need reporting, review the IRS instructions for Form 1040-X.
- Step 4: Keep the notice, response, evidence and submission confirmation together.
Common Questions About CP2000A
- Is A CP2000A A Bill?
- No. It is not a bill. The IRS includes it in the CP2000 series of proposed return changes.
- Must I Amend My Return?
- Not if you agree and have no other income, credits, or expenses to report. Otherwise, follow the IRS amendment and response instructions.
- Does The A Suffix Mean Only Underreported Income?
- The IRS series guidance does not make that distinction. Read the proposed items on your actual notice.
Related Notices
Additional Resources

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