IRS Notice CP01B – Request for Additional Information to Process Your Return
The IRS sends CP01B to request additional information to process your tax return. The IRS is requesting that you verify your identity.
Type of Notice: Account information or change
Most common tax problem area: Tax identity theft
Other tax problem areas: IRS return and account problems
Why you received IRS Notice CP01B
- The IRS fraud detection system flagged your tax return as a potential identity theft case.
- The IRS sent this notice to request that you provide documentation to prove your identity. Before your return be processed, you must prove that you are the legitimate owner of the Social Security Number used on the return.
Your options to address IRS Notice CP01B
- Provide the documentation requested
Notice deadline: 30 days
If you miss the deadline: The IRS will not process your tax return until you respond.
Want more help?
See your local tax pro for a free consultation.
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