OweRightGet early access

IRS Letter 12C: More information needed to process your return

IRS Letter 12C is a missing return letter from the IRS. The IRS needs something more, such as a missing form or proof of income or credits, before it can finish processing your return. This is not a bill. Letters in this group say the IRS can't find a return it expected.

What this letter usually means

The IRS needs something more, such as a missing form or proof of income or credits, before it can finish processing your return. This is not a bill. Some people don't need to file every year. The letter explains how to tell the IRS which applies to you.

Category: The IRS has no record of a return

What people usually do first

Send the information the letter asks for within 20 days; don't file an amended return to respond.

What to have ready

What may come next

This letter does not point to a specific follow-up letter. Any later step will be described in mail from the IRS.

Read the IRS page

The IRS letter itself is the final word on what it means for you. Read the IRS page for 12C.

Common questions about 12C

What is IRS notice 12C?

The IRS needs something more, such as a missing form or proof of income or credits, before it can finish processing your return. This is not a bill. It is also called LETTER12C, LTR12C, 0012C.

How long do I have to respond to a 12C notice?

The date to respond or pay by, if there is one, is printed on your letter. Check it, and read the IRS page for 12C for more.

Is a 12C notice a scam?

A real 12C comes by mail and should match your own records. You can also sign in to your IRS Online Account on irs.gov to see your account directly.

What should I have ready for a 12C notice?

The letter, every page, The tax year the letter names, Your W-2s, 1099s and income records, The items the letter says are missing.

The OweRight app explains the 12C letter type in plain English.

Get early access to the app

OweRight is not the IRS and does not give tax or legal advice.

Related notices