IRS Notice CP21C – Changes to Your Form 1040
The IRS sent CP21C to notify you that data processing adjusted your tax return, resulting in a zero balance.
Type of Notice: Return accuracy
Most common tax problem area: IRS return and account problems
Why you received IRS Notice CP21C
- After you filed your tax return you discovered an error.
- You either contacted the IRS to correct the error or filed an amended return.
- The IRS corrected the error and made an adjustment to your return.
- The IRS sent CP21C to notify you that the adjustment resulted in a zero balance on your return.
Notice deadline: N/A
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