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IRS Notice CP21A – Changes to Your Form 1040

1 min read


1 min read


The IRS sends CP21A to inform you that the changes you requested have been made for tax year shown on the notice that resulted in a balance due.

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Type of Notice: Return accuracy

Most common tax problem area: IRS return and account problems

Other tax problem areas: IRS penalties, IRS bill for unpaid taxes

Why you received IRS Notice CP21A

  1. After you filed your tax return you discovered an error.
  2. You either contacted the IRS to correct the error or filed an amended return.
  3. The IRS corrected the error and made an adjustment to your return.
  4. The IRS sent CP21A to notify you that the adjustment resulted in a balance due.

Your options to address IRS Notice CP21A

  1. Dispute the taxes you owe
  2. Dispute the penalties
  3. Make arrangement to pay

Notice deadline: 21 days

If you miss the deadline: Additional penalties and interest will accumulate.

Want more help?

See your local tax pro for a free consultation.

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