How long do I have to respond to IRS Letter 6217C?

Use the timeframe printed on the letter. Check the date and any response deadline printed on your notice, and follow the notice's instructions.

What should I do if I received IRS Letter 6217C?

Read which entity details remain unresolved and provide the specific information requested. If you are unsure, have a tax professional review the letter before you respond to the IRS.

IRS Letter 6217C: Entity Verification Follow-Up

Read which entity details remain unresolved and provide the specific information requested.

Editorially reviewed by the Law Offices of Darrin T. Mish, P.A.Updated October 1, 2026

Notice: Letter 6217C
Urgency: Attention
Deadline: Use the timeframe printed on the letter

Your first move

Read which entity details remain unresolved and provide the specific information requested.

A follow-up about entity information

Letter 6217C requests additional business, estate, or trust information or addresses incorrect EIN details. Supply the requested information in the letter's timeframe. Address or responsible-party corrections may require Form 8822-B.

Match it to your earlier reply

Find the original inquiry, your response, and its delivery evidence. Mark what the new letter still asks for. That comparison helps avoid resending a large packet that does not answer the remaining question.

Before you send anything

Check the entity name and EIN on each relevant page. Keep the response and transmission confirmation together. If the request does not make sense in light of your prior submission, ask the IRS contact or your representative to clarify it before sending unrelated sensitive records.

Want a second set of eyes on this letter?

Free consultation with Darrin T. Mish, a Tampa tax attorney licensed since 1993 and admitted to the U.S. Tax Court. Bring the letter.

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