CP04: Combat zone: the IRS needs information about your service to apply deadline relief

What it means

Combat zone: the IRS needs information about your service to apply deadline relief

Family

Return processing and missing information

Respond within

The date printed on the notice

When to get help

Rarely needed. If the same return keeps generating requests, or a name mismatch cannot be resolved with Social Security, get help.

What letters in this family have in common

Letter 12C is the common one for individuals: the return is missing a form (often Form 8962 for the premium tax credit), a signature, or supporting documentation. CP54 series notices mean the name and Social Security number on the return do not match Social Security records. CP04 relates to combat zone status. Business notices in this family ask for missing schedules or confirm return status.

The response is the missing item and nothing else. If a 12C asks for Form 8962, complete it from your Form 1095-A and send just that. If a name mismatch is the problem, the fix is usually at the Social Security Administration first.

Refunds are held until the item arrives, and the IRS gives itself a fresh processing window once it does.

What to gather

• The letter, which lists exactly what is missing
• The return as filed
• The specific form or schedule requested, completed
• Form 1095-A if Form 8962 is requested
• Social Security card if a name or number mismatch is cited

How to write back

1. Document cover letter: A one-page cover letter for documents you are sending in response to an IRS request: what the notice asked for, what is enclosed, and nothing else.

Closest built pages

• Letter 12C: Information missing from your return
• CP54B: Name and taxpayer ID do not match; refund held
• CP54G: Name and taxpayer ID mismatch; return processed

Sources

1. IRS, Understanding your IRS notice or letter
2. IRS, Understanding your letter 12C
3. IRS, Understanding your CP54B notice