CP11 — Return Corrected, Balance Due

What this notice means

The IRS found a math or other error and now shows you owe more.

What to do

Before you respond

1. Read the whole letter and note the notice code, tax year and response date.
2. Compare the figures with your return, W-2s, 1099s and payment records.
3. Keep copies of the notice and everything you send. Send proof by a trackable method.
4. Choose: pay, dispute, appeal or request a resolution program. Get help if the notice mentions a levy, lien or hearing.

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