What Is IRS Letter 12C?

The IRS issues 12C letter's because they need additional information to process an individuals income tax return. This information can include:

• Missing forms or schedules to support entries on Form 1040
• Verification of income, withholding, and credit amounts
• Documentation to reconcile advance payments of the Premium Tax Credit (PTC)

How To Respond To A 12C Letter

• Read and respond to the letter in a timely fashion
• If you believe there is an error send the IRS a letter detailing the error
• Send the information requested in the letter
• Fax your information to the fax number in the letter or mail your information to the address shown at the top of the letter
• Include a copy of the letter with your response

Do NOT file a Form 1040X, Amended U.S. Individual Income Tax Return.