Earned Income Tax Credit Audits: Proving Your Qualifying Child and Income

If you claimed the earned income tax credit and got a letter asking you to prove your qualifying child lived with you, you are in a very common place. The IRS Data Book 2025, Table 3-1, shows that for tax year 2021, returns claiming the EITC had an examination coverage rate of 0.7 percent, compared with about 0.3 percent for individual returns overall.

The good news is that EITC exams are narrow and document-driven. If you have the right records, you can usually win by mail.

How EITC exams work

Most EITC exams are correspondence exams run by IRS campuses under the refundable credits procedures in IRM 4.19.14. Many are pre-refund exams. The IRM explains that for pre-refund exams, refunds will generally be frozen; in some programs the frozen amount is the EITC, additional child tax credit and premium tax credit portion, and in others the full refund is frozen (IRM 4.19.14.5).

The contact usually comes as a CP75-series notice or a Letter 566-series initial contact letter. The IRM's program tables show that a typical EITC exam is "full scope" as to the EITC and dependents, and, if applicable, filing status, the American Opportunity Tax Credit and related items such as the child tax credit, child and dependent care credit and adoption credit. So expect questions about more than one line.

For how mail audits work in general, including response times and extensions, see correspondence audits.

What you have to prove

For each qualifying child you claimed, expect to prove:

• Relationship. That the child is your child or a descendant of your child, or your brother, sister, stepbrother or stepsister or a descendant of one of them (IRC 152(c)(2)). Birth certificates, adoption or placement papers and marriage certificates connect the chain.
• Residency. That the child had the same principal place of abode as you for more than half the year (IRC 152(c)(1)(B)), and for the EITC, that the home was in the United States (IRC 32(c)(3)(C)).
• Age. That the child met the age test. A birth certificate usually covers this.
• Identification. The IRM notes the qualifying child must have a valid Social Security number, with a narrow exception for a child born and who died in the same year.

And for you: your earned income, especially if it came from self-employment.

Residency is where most cases turn

Relationship is usually easy to document. Residency is harder, because it is about where a child slept, not who the child is. The best residency evidence is a document from a third party, dated during the year, that shows the child at your address:

• School records showing your address.
• Medical or dental records showing your address.
• Childcare provider records.
• Records from social service agencies, places of worship, or other organizations.
• A lease or rental agreement listing the child as an occupant.

Two IRM tools make this easier:

• Templates for providers. The IRM notes that templates are available on IRS.gov that taxpayers can use to request the correct information from a school, healthcare provider or childcare provider to verify residency. If used, the template must be placed on the organization's letterhead.
• Form 14086. In certain programs, the IRS lets you use Form 14086, Qualifying Children Residency Statement Third Party Affidavit, in addition to or instead of other documentation to verify a child's residency.

Proving self-employment income

If you reported self-employment income, the IRS will want to see that the business and the income were real. The IRM lists pay stubs and letters from employers on letterhead as acceptable documentation of income, with the letter stating the dates worked, income earned and a general description of the work. It also notes that if you worked several small jobs, examiners can use judgment to accept a written statement for the remaining employers if you provide letters from most of them.

For a business, think invoices, bank deposits, customer records, receipts for supplies, advertising and licenses. The question is whether the business existed and earned what you reported. See IRC 6001 recordkeeping.

Common problems

• Two people claimed the same child. The IRM program tables include cases where two to four taxpayers claimed the same Social Security number for the EITC or as a dependent. Tie-breaker rules then decide who gets the child, and documentation is everything.
• Married but filing as head of household. If research shows you were married, the IRM directs examiners to request proof of separate residence, such as rent receipts, school records, property tax bills or utility receipts.
• The child lived with you only part of the year. Residency is a more-than-half-the-year test. Records from both halves of the year help.

The bans: why the stakes are higher than one year

An EITC exam can affect future years. IRC 32(k)(1) disallows the credit for:

• 10 taxable years after the most recent year for which there was a final determination that your claim was due to fraud, and
• 2 taxable years after the most recent year for which there was a final determination that your claim was due to reckless or intentional disregard of rules and regulations (but not fraud).

The IRM notes that legislation extended these disallowance rules to the child tax credit, additional child tax credit and American Opportunity Tax Credit as well. The 2-year ban is often proposed right on the exam report, and the IRM requires examiners to document the reason for asserting or not asserting it.

Even without a ban, IRC 32(k)(2) says that if you are denied the credit through the deficiency procedures, you cannot claim it in a later year unless you provide the information the IRS requires to show eligibility. That is the recertification process, and the IRM's program tables refer to Form 8862 in this context.

If a ban was imposed wrongly, the IRM's own example says the way to challenge it can be an audit reconsideration of the year the ban was asserted, with documents showing it was incorrectly applied.

Do not ignore the other credits

Because these exams usually cover dependents, filing status and related credits together, a single document can matter for several lines at once. Proof that a child lived with you supports the EITC, the child tax credit and often head of household status. Organize your response by child, not by credit, and say in your cover letter which items each document supports.

If you do not respond

Nonresponse in a correspondence exam leads to a 30-day letter, then a statutory notice of deficiency, then a default assessment. In a pre-refund case, the IRM says that if a case is closed by default and the refund is frozen, the taxpayer is sent Letter 105C, Claim Disallowed. Respond. Even a partial response with what you have is better than silence.

How to build a winning EITC response

1. Read the letter and the list of documents requested. Answer each item.
2. For each child, assemble relationship, age and residency documents. Lead with third-party records.
3. If your address changed during the year, cover both addresses.
4. Include proof of earned income, especially self-employment.
5. Send copies with a one-page cover letter listing what is enclosed, and keep proof of mailing.
6. If you need more time to get school or medical records, ask before the deadline. See extension rules in mail audits.

An EITC exam is a paperwork test. The IRS is not asking whether you are a good parent. It is asking for the document that proves where the child lived. Get that document, and most of these cases end the right way.