What You Need Before You File for the Earned Income Tax Credit

Gather these documents before you start

The IRS needs to see proof that you earned the income you're claiming and that you meet the requirements for your family size. You don't send these documents with your tax return, but you must have them ready in case the IRS asks. Most people file without ever being asked, but having everything organized now means you won't scramble if a question comes up later.

Start by collecting your income documents: W-2 forms from every employer, 1099 forms if you had self-employment or contract work, and bank statements or profit-and-loss records if you're self-employed. If you received unemployment benefits, you'll need the 1099-G. If you had investment income, gather those statements too — the EITC has income limits that include investment earnings, and you need to know your total.

Next, gather proof of your family relationships and residency. You'll need birth certificates for yourself and any children you're claiming, Social Security cards for everyone on your return, and proof that you all lived together for more than half the year — a lease, mortgage statement, or utility bill with your name and address works. If a child doesn't live with you the full year, you need documentation of where they were and when.

Key Takeaways

• Collect W-2s, 1099s, and income statements before filing, even though you won't mail them with your return.
• Have birth certificates, Social Security cards, and proof of address ready to show you and your children meet the residency requirement.
• If you claim a child who doesn't live with you full-time, document where they lived and when.
• The IRS can ask for these documents up to three years after you file, so keep them organized and accessible.
• If your income or family situation changed during the year, gather records showing when the change happened.

Income documents you must have

Your employer sends you a W-2 by January 31 each year. This form shows your wages and taxes withheld. If you haven't received one by early February, contact your employer's payroll department or check your online account if your employer offers one. You need a W-2 from every job you held during the year, even if you only worked there for a few weeks.

Self-employed income requires different paperwork. If you had a business, freelance work, or gig work, gather your bank statements, invoices, and receipts showing what you earned and what you spent. The IRS will want to see that your reported income matches your actual deposits. If you use accounting software or a bookkeeper, print out your profit-and-loss statement for the year.

Other income counts too. If you received unemployment, workers' compensation, disability payments, or interest from savings, you'll have a 1099 form for it. Gather all 1099s — even small amounts add up and affect your EITC amount. If you received a refund of state or local taxes, that's also reportable income for EITC purposes.

Documents proving your family situation

The IRS needs to know that you and any children you're claiming are related and that you all lived together. Birth certificates are the standard proof of relationship. If you don't have an original, you can order one from your state's vital records office — this usually takes one to two weeks and costs $10 to $30. A certified copy is what you need; a photocopy won't work if the IRS asks to see it.

Social Security cards for you and each child are required. If a child doesn't have one yet, you can apply at your local Social Security office or through your state's vital records office when you order the birth certificate. The process takes a few weeks, so start early if you're missing any cards.

Proof of address can be a lease, mortgage statement, utility bill, or insurance statement with your name and current address. It needs to show the address where you and your children lived. If you moved during the year, keep documents from each address showing when you lived there. If you're homeless or living with family, a letter from a shelter, school, or social services agency stating your address and the dates you stayed there works.

What to document if your situation changed mid-year

If you had a child move in or move out, got married or divorced, or had a major change in income, gather the documents that show when the change happened. A birth certificate shows when a child was born. A marriage license or divorce decree shows when your marital status changed. A job offer letter or final paycheck shows when you started or stopped working.

If a child lived with you for part of the year but not all of it, the IRS needs to know the exact dates. School enrollment records, lease agreements, or statements from the other parent can show when the child arrived or left. If custody changed during the year, keep any court orders or custody agreements that spell out the dates.

Income changes matter because they affect your EITC amount. If you received a bonus, got a raise, or had a job end partway through the year, your total income for the year determines how much credit you receive. Gather the documents that show your income for each period — pay stubs before and after a raise, or final pay stubs from a job that ended.

How long to keep these documents

The IRS can ask to see your documents for three years after you file your return. Some situations allow them to go back six years. Keep everything organized in one place — a folder, a box, or a digital file — so you can find it quickly if needed. Many people take photos of important documents and store them in a cloud folder as backup.

After three years, you can safely discard most documents. The exception is if you claim a child who might be questioned — keep those documents longer, perhaps five to seven years, since child-related claims are audited more often than others. If the IRS contacts you about a return, don't throw anything away until the matter is resolved.

Organizing your checklist before you file

Create a simple list with boxes to check off: W-2s from all employers, 1099s for other income, birth certificates for you and each child, Social Security cards, proof of address, and any documents showing changes during the year. Go through each item and mark it as "have it," "need to order," or "don't need this one." This takes 30 minutes and saves hours of searching later.

If you're missing something, order it now rather than waiting until tax time. Birth certificates and Social Security cards take weeks. W-2s arrive by January 31, but if you haven't received one by mid-February, contact your employer immediately. The sooner you have everything, the sooner you can file and the sooner you'll receive your refund.

If you're filing with a tax preparer or using tax software, bring or upload these documents when you file. They'll ask you questions to confirm the information, and having the documents there means you can answer accurately. If you file online without a preparer, you won't upload these documents, but you'll answer questions about your income and family, and your answers should match what these documents show.

What happens if you're missing a document

You can still file your return without having every document in hand. The IRS doesn't require you to attach documents to your return. However, if they contact you later and ask for proof, you'll need to provide it then. If you can't find a document, you may be able to get a replacement: a new W-2 from your employer, a new birth certificate from your state, or a new Social Security card from the Social Security Administration.

If you're missing income documentation and can't get it, you can file based on your best recollection, but be as accurate as possible. The IRS matches W-2 information to your return automatically, so if your employer reported your wages and you reported a different amount, the IRS will notice. If you underreported income, you'll owe the difference plus interest. If you overreported, you'll simply receive a smaller refund.

Frequently Asked Questions

Do I have to mail these documents with my tax return?

No. You keep them and only send them if the IRS asks. The IRS matches your return to W-2 information automatically, so most people never have to show anything. But if you're selected for review, you'll need to provide these documents within 30 days.

What if I don't have a birth certificate for my child?

Order a certified copy from your state's vital records office. You can usually do this online or by mail. It takes one to three weeks and costs $10 to $30. If you need it urgently, some states offer expedited service for an extra fee. Until you have it, you can't claim the child on your return.

Can I file if I'm still waiting for a W-2?

Yes, but only if it's after January 31 and your employer is late. File using your best estimate of your income based on pay stubs, then file an amended return once the W-2 arrives if the amounts don't match. If you file before January 31, wait — W-2s are due by then, and filing early with incomplete information can cause delays.

How do I prove I lived at my address if I don't have a lease or mortgage?

A utility bill, insurance statement, or bank statement with your name and address works. If you're living with family and your name isn't on any bills, ask the homeowner for a letter stating you lived there and the dates. A school enrollment form or letter from a social services agency also counts as proof of address.

What if my child lived with me only part of the year?

You need to show the exact dates the child lived with you. School records, lease agreements, or a statement from the other parent can show when the child arrived or left. The child must have lived with you for more than half the year to be claimed, so document the dates carefully.