IRS Letter 12C: More information needed to process return

Letter 12C. More information needed to process return.

The IRS says Letter 12C is sent when it needs more information to process an individual income tax return, such as a missing form or schedule or verification of income, withholding, credits, or identifying numbers.

General information from the Law Office of Alexander Powell, PLLC. It is not legal advice, and it is not a substitute for the notice itself.

On the paper

Read every requested item, the response method, and the date printed on Letter 12C. Keep the letter with a copy of the filed return.

Find the date printed on your notice or letter. The paper notice and the current official IRS instructions control, even where this page differs.

General next steps

Create a list matching each requested item to the form, schedule, statement, or explanation that addresses it.
Use the response method and destination printed on the letter, even if a different IRS address appears elsewhere.
Keep a complete copy of the response and proof of when and how it was sent.

Timing

The IRS page says to send the requested information within 20 days, but the date and instructions printed on Letter 12C control.

What this page cannot tell you

This page cannot decide which document proves an item, prepare the response, or predict when the return or refund will finish processing.

Official sources

If anything on this page differs from your notice or from current IRS instructions, follow the notice and the IRS.

Questions after reading the letter?

You can ask the Law Office of Alexander Powell, PLLC to consider a consultation about any IRS or tax letter. Requesting a consultation does not make Mr. Powell your lawyer, provide legal advice, or protect a deadline. Representation begins only after a conflict check, after the firm agrees to the matter, and after both sides sign a written engagement agreement.

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