IRS Letter 178C – Amended Return Incomplete
The IRS sends Letter 178C to inform you that additional information is needed to process your amended return.
Type of Notice: Return accuracy
Most common tax problem area: Amended returns
Other tax problem areas: IRS penalties
Why you received IRS Letter 178C
- You filed an amended tax return.
- The IRS sent Letter 178C to notify you that additional information is needed to process your amended return.
Your options to address IRS Letter 178C
- Provide the requested documentation
Notice deadline: N/A
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