How to File a 1099 Form With the IRS

Filing a 1099 means reporting it to the IRS, not sending it to them

A 1099 form is a record of income you received — your bank, employer, or client sends it to you and to the IRS. You do not file the 1099 itself. Instead, you report the income shown on it when you file your own tax return. The IRS already has a copy of the 1099 from whoever issued it, so your job is to make sure the income you report on your return matches what they reported.

If you received a 1099, you will get it by January 31 of the year after you earned the income. For example, income you earned in 2024 appears on a 1099 you receive by January 31, 2025. You then report that income on your 2024 tax return, which you file by April 15, 2025.

Key Takeaways

• You receive a 1099 by January 31 each year; the IRS receives an identical copy at the same time.
• Report the income from your 1099 on your tax return using the form that matches your situation — Schedule C for self-employment, Schedule 1 for other income, or a business tax form if you own a corporation.
• If the 1099 amount is wrong, contact the issuer to request a corrected form (Form 1099-X) before you file your return.
• Mismatches between your 1099 and your tax return trigger IRS notices, so accuracy matters even if the amount is small.

Where the 1099 goes and what you do with it

The organization that paid you — a bank, client, employer, or investment firm — sends the 1099 to two places: to you and to the IRS. You keep your copy for your records. The IRS copy arrives at the same time yours does, so the IRS knows about the income before you file your return.

Your job is to report that income on your tax return. You do not mail the 1099 to the IRS or attach it to your return. Instead, you enter the income amount in the correct place on your return based on what type of 1099 you received and what kind of income it represents.

Which form to use when reporting 1099 income

The form you use depends on the type of 1099 and your tax situation. If you are self-employed and received a 1099-NEC (nonemployee compensation) or 1099-MISC (miscellaneous income), you report it on Schedule C, which is part of your personal tax return. Schedule C is where you list business income and expenses.

If you received a 1099-INT (interest income) or 1099-DIV (dividend income), you report it on Schedule 1, which is also part of your personal return. If you own a business structured as an S-corporation or C-corporation, income may go on your business tax return instead of your personal return — your accountant or tax software will guide you on this.

The 1099 you receive will show a box number where the income appears. Your tax software usually asks you to enter the 1099 information directly, and it places the amount in the right spot automatically. If you are filing by hand, the instructions that come with your tax form tell you which box number goes where.

What to do if the 1099 amount is wrong

If the 1099 shows an amount that does not match what you were actually paid, contact the issuer right away — do not wait until you are filing your return. Ask them to issue a corrected 1099, which is called a Form 1099-X. They will send the corrected form to you and to the IRS.

If you discover the error after you have already filed your return, you can file an amended return using Form 1040-X. However, it is much simpler to catch and fix the error before filing. Most issuers will correct a 1099 if you contact them within a few weeks of receiving it.

If the issuer refuses to correct it or you cannot reach them, you can still file your return with the correct amount and include a note explaining the discrepancy. The IRS may send you a notice asking about the mismatch, but you can respond with documentation showing what you actually earned.

Why the IRS cares about your 1099 matching your return

The IRS uses computer matching to compare the 1099 forms it receives against the tax returns people file. If you report a different amount than what appears on your 1099, the IRS flags it. You will likely receive a notice asking you to explain the difference.

Even small mismatches trigger these notices. The IRS does not assume you made an honest mistake — it assumes you are underreporting income. You then have to respond with documentation proving your number is correct. This is why accuracy matters: it saves you time and stress later.

If you did not receive a 1099 you were expecting

If someone paid you and you expected a 1099 but did not receive one by early February, contact them and ask for it. Some issuers are slow, and a follow-up call often gets results. If they say they did not issue one, ask why — there are thresholds below which a 1099 is not required, and they may tell you your payment fell below that amount.

If you still do not have it by mid-February and you need to file your return, you can file with the income you know you received and note that you are waiting for the 1099. Keep trying to get it, because the IRS will eventually receive it, and you want your return to match when it does.

Keeping records and organizing your 1099s

Keep every 1099 you receive, along with your copy of your tax return and any supporting documents like invoices or bank statements. If the IRS sends you a notice about a 1099 mismatch, you will need to show what you actually earned and received. These documents prove your case.

If you are self-employed and receive multiple 1099s throughout the year, add them up to make sure your Schedule C total matches the sum of all your 1099s. If you have other income that did not generate a 1099, add that too. This cross-check catches errors before you file.

Frequently Asked Questions

Do I have to attach the 1099 to my tax return when I mail it in?

No. The IRS already has a copy from the issuer. If you are filing electronically, you do not attach anything — you just enter the income amounts. If you are mailing a paper return, do not include the 1099 unless the IRS specifically asks for it in a notice.

What if I received a 1099 for income I did not actually get?

Contact the issuer when ready and ask them to issue a corrected 1099-X showing zero or the correct amount. If they refuse or you cannot reach them, file your return with the correct income and include a written explanation. The IRS will likely send a notice, but you can respond with documentation showing the payment was not actually made to you.

Can I file my tax return before I receive all my 1099s?

You can file early, but you risk having to file an amended return later if a 1099 arrives with a different amount than you reported. It is safer to wait until you have all your 1099s in hand, usually by early February. If you need to file before then, file with the income you know about and update it once the 1099 arrives.

What happens if I report less income than my 1099 shows?

The IRS will match your return against the 1099 and send you a notice if the amounts do not match. You will have to respond and explain the difference. If you cannot explain it, the IRS may assess additional tax, interest, and penalties. This is why reporting the correct amount matters.

Do I need to report a 1099 if the amount is very small?

Yes. There is no minimum amount — if you received it and the IRS has a copy, report it. The IRS computer system flags mismatches regardless of size, so even a 1099 for $50 can trigger a notice if you do not report it.