What Is Form 886-A?

This question was answered by Taylor, CPAI, Deduction’s AI tax accountant, and Deduction’s licensed CPAs.

Last updated:
Feb 2026

Form 886-A is not a tax return and not a form you file on your own. It is an IRS explanation form used during audits, examinations, and appeals to explain proposed changes to your tax return.

Form 886-A, Explanation of Items, is a document the Internal Revenue Service uses to:

  • Explain why the IRS is proposing adjustments
  • Show which tax law or facts support the change
  • Provide a written narrative instead of a numeric form

It often accompanies:

  • Audit reports
  • Notices proposing additional tax
  • Appeals case files

When Is Form 886-A Used?

You typically see Form 886-A when the IRS is:

  • Examining your return (audit)
  • Proposing changes to income, deductions, or credits
  • Responding to documentation you submitted
  • Sending a 30-day letter or audit explanation

It explains items such as:

  • Disallowed deductions
  • Reclassified income
  • Passive activity loss adjustments
  • Basis or depreciation changes
  • Accuracy-related penalties

What Information Does Form 886-A Contain?

A typical Form 886-A includes:

  • Issue summary
  • IRS findings
  • Applicable tax law citations
  • IRS analysis
  • Proposed adjustment explanation

It often references:

  • Internal Revenue Code sections
  • Treasury Regulations
  • IRS publications
  • Court cases (if relevant)

Do You Need to Respond to Form 886-A?

Yes, but indirectly.

If you disagree with the explanation:

  • You respond to the notice or letter it accompanies
  • You submit documentation or a written protest
  • You may request an appeal

Common Situations Where Taxpayers See Form 886-A

  • Schedule C expense audits
  • Rental real estate loss limitations
  • RSU or stock basis mismatches
  • Earned Income Credit verification
  • Depreciation recapture disputes

Sources:

The information provided does not, and is not intended to, constitute legal advice.

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