IRS CP11 Notice: Return Changes and A Balance Due
Notice Instructions: Follow the payment and disagreement dates on your actual notice.
Start With The Change. Then Check The Numbers.
CP11 explains IRS corrections to your return that changed the amount you owe. Compare the changes with your filed return before deciding how to respond.
Read The IRS Guidance For CP11 · Source checked October 11, 2026.
What to Check Next
- Step 1: Match the return and tax year to the notice.
- Step 2: Compare each correction with your records.
- Step 3: If you agree, pay by the stated date or explore payment arrangements.
- Step 4: If you disagree, call the notice number by its stated date.
Common Questions About CP11
- Does Every CP11 Change A Refund Into A Debt?
- No. It changes the amount owed; read your specific adjustment.
- Can I Wait To Dispute The Change?
- Missing the notice date can affect reversal and appeal rights. Act by that date.
Understand the Notice.
See the Bigger Picture.
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