What Happens If You Send a 1099 to a Corporation?

Sending a 1099 to a corporation that didn’t need one is a paperwork problem, not a penalty problem. The IRS doesn’t fine you for reporting a payment you weren’t required to report; you gave them more information than the rules asked for, not less. The corporation doesn’t owe extra tax because a form arrived, either. What the unnecessary filing does create is a record in the IRS matching system, and that record can generate a notice to your vendor if the numbers don’t line up with what they reported. The fix is to file a corrected 1099 zeroing out the amount, and to double-check that the payment wasn’t actually one of the categories where corporations do have to receive a 1099.

What the IRS Actually Does With the Form

Once a 1099 is filed, the IRS’s automated matching system expects the recipient to report that income on its return. A corporation almost always does report all its income anyway, so in most cases the extra 1099 lands, matches, and nothing happens. Where it goes wrong is when the amount on your 1099 doesn’t match what the corporation booked as revenue from you, or when the corporation’s accounting groups your payments differently. Then the corporation may receive a notice asking about the discrepancy.

Your vendor will usually call you first and ask you to fix it. If you don’t, the corporation can contact the IRS directly at 800-829-1040 and report the incorrect form, giving the agency your name, address, and phone number to follow up.¹ Filing a correction promptly keeps the relationship intact and closes the matching loop before it becomes a notice.

Check First Whether the 1099 Was Actually Required

Before you correct anything, confirm the payment wasn’t one of the carve-outs where corporations do get a 1099. The general rule exempts “payments to a corporation (including a limited liability company (LLC) that is treated as a C or S corporation)” from 1099-MISC and 1099-NEC reporting.² But several payment types override that exemption.

Attorney Fees and Legal Settlement Proceeds

Payments for legal services are the most common exception. Fees you paid a law firm for representing or advising you go on Form 1099-NEC, Box 1, once they reach the $2,000 reporting threshold for 2026 payments, even if the firm is incorporated.³ Gross proceeds paid to an attorney, meaning money sent to a lawyer that isn’t payment for the lawyer’s own services (settlement funds are the classic example), go on Form 1099-MISC, Box 10. Gross proceeds to attorneys have no minimum dollar threshold, so even small payments must be reported.

Medical and Health Care Payments

Payments to physicians, hospitals, and other health care providers totaling $2,000 or more during 2026 belong on Form 1099-MISC, Box 6, regardless of the provider’s entity type.² This catches occupational health services, drug testing, workplace physicals, and similar expenses many businesses miss.

Card and Payment App Transactions

If you paid the corporation by credit card, debit card, or a third-party platform like PayPal, you shouldn’t have issued a 1099 in the first place. Federal law shifts that reporting to the payment settlement entity, which reports on Form 1099-K instead.⁴ Issuing your own 1099 on top of that creates a duplicate. If this is what happened, the correction below applies.

If the payment doesn’t fall into one of these categories and the vendor is genuinely a C or S corporation on its W-9, the 1099 was unnecessary and should be corrected.

How to Correct a 1099 You Shouldn’t Have Sent

The IRS treats this as a “Type 1” correction: the form was filed with an incorrect amount, and the correct amount is zero.

Prepare a new copy of the same form type (1099-NEC or 1099-MISC) with the same payer and recipient information as the original.
Check the “CORRECTED” box at the top of the form.
Enter $0.00 in every payment amount box. This overwrites the original filing.
Send the corrected form to both the IRS and the recipient corporation. For paper filings, include Form 1096 as the transmittal cover sheet.⁵

If you filed the original electronically, the correction has to go through the electronic filing system too. Any filer required to submit 10 or more information returns during the year must e-file, and that count includes all form types combined.⁶ Keep documentation of both the original error and the correction for at least three years after the return’s due date.⁷

A different situation, worth flagging so you don’t confuse it with this one: if the problem isn’t the amount but the wrong recipient name or taxpayer identification number, or you used the wrong form type entirely, that’s a two-step “Type 2” correction. You file a zeroed-out corrected form to wipe the incorrect record, then file a brand-new original with the correct information.

Going Forward: Use the W-9 to Sort Vendors

The cleanest way to avoid the same mistake next year is to collect a Form W-9 from every vendor before the first payment. Line 3a asks the payee to check a box for federal tax classification: individual, C corporation, S corporation, partnership, trust/estate, or LLC with a noted tax classification.⁸ If the vendor checked “C corporation” or “S corporation,” and the payment isn’t in one of the exception categories above, you can skip the 1099. The signed W-9 is your documentation if the IRS ever asks why. Keep it on file for at least four years.⁹

The Bigger Risk Runs the Other Way

Over-reporting a corporate payment is not what the IRS penalizes. Under-reporting is. If the payment you were second-guessing turns out to have been one of the required categories (attorney fees, medical payments, and the like), skipping the 1099 triggers penalties that scale by how late the correction arrives. For returns due in 2026:¹⁰

Corrected within 30 days of the due date: $60 per return
Corrected after 30 days but by August 1: $130 per return
Corrected after August 1 or never filed: $340 per return
Intentional disregard: $680 per return with no annual cap

The IRS also charges a separate penalty for failing to furnish the correct payee statement (the copy that goes to the recipient), so a single missed filing can generate two penalty assessments. Annual caps apply to the first three tiers for both small and large businesses, but intentional disregard has no cap at all.¹⁰

Filing deadlines set the clock. For 2026 returns, Form 1099-NEC is due to both the IRS and the recipient by January 31. Form 1099-MISC is due to recipients by January 31, and the IRS copy by February 28 on paper or March 31 electronically.⁶ Weekend and holiday due dates push to the next business day. If you’re already inside a penalty window, filing now still costs less than waiting.

1
Internal Revenue Service. What to Do When a W-2 or Form 1099 Is Missing or Incorrect
2
Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC (04/2025)
3
Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC
4
Office of the Law Revision Counsel. 26 U.S. Code 6050W – Returns Relating to Payments Made in Settlement of Payment Card and Third Party Network Transactions
5
Internal Revenue Service. About Form 1096, Annual Summary and Transmittal of U.S. Information Returns
6
Internal Revenue Service. General Instructions for Certain Information Returns (For Use in Preparing 2026 Returns)
7
Internal Revenue Service. Topic No. 305, Recordkeeping
8
Internal Revenue Service. Form W-9 (Rev. March 2024)
9
Internal Revenue Service. Forms and Associated Taxes for Independent Contractors
10
Internal Revenue Service. Information Return Penalties