1099-MISC Box 6: Medical Payments, Filing, and Penalties

Box 6 of Form 1099-MISC reports medical and health care payments of $600 or more that a business, insurer, or other payer made to a health care provider during the calendar year.¹ The figure is the gross payment before any deductions, and the provider treats it as taxable income. Two features make this box unusual: payments to corporations are reportable, and bundled goods travel with the services they accompany.

What Belongs in Box 6

Box 6 captures payments of $600 or more made in the course of a trade or business to any physician, supplier, or other provider of medical or health care services, including payments made by health, accident, and sickness insurance programs.¹ An insurer paying a surgeon $15,000 files a 1099-MISC with that amount in Box 6. The same applies to employers paying occupational health clinics, workers’ compensation insurers reimbursing treating physicians, and government programs paying providers directly.

When a payment bundles professional services with supplies such as injections, drugs, or dentures, the payer reports the entire amount. There is no need to split goods from services when the supplies are part of a health care service.¹

The Corporation Rule

Most 1099-MISC categories let a payer skip the filing if the recipient is a C-corporation or S-corporation. Medical and health care payments are the exception. Box 6 payments to corporations, including professional corporations, must be reported.¹ Payers who rely on the corporation exemption elsewhere routinely miss this and under-report.

What Stays Out

Payments to pharmacies for prescription drugs, even above $600.
Payments to tax-exempt hospitals or extended care facilities.
Payments to hospitals or extended care facilities owned and operated by the United States, a state, the District of Columbia, or their political subdivisions.
Payments under a flexible spending arrangement or health reimbursement arrangement that qualify as employer-provided accident or health coverage.

These exemptions come from the IRS instructions for Box 6.¹ Merchandise bought from a retailer that isn’t bundled with a health care service also stays out. And Box 6 is not the place for nonemployee compensation to non-medical contractors, which belongs on Form 1099-NEC, or for wages, which go on Form W-2.

Filing Requirements for Payers

The paperwork sits with the payer. Before making the first payment, collect a completed Form W-9 from the provider to capture the correct taxpayer identification number.² Skipping the W-9 upfront creates a backup withholding obligation later.

Deadlines

Send the recipient’s copy of Form 1099-MISC by January 31 of the year after payment. The IRS copy is due February 28 on paper or March 31 electronically. When a deadline lands on a weekend or legal holiday, it shifts to the next business day.¹

Electronic Filing Threshold

Payers filing 10 or more information returns in a calendar year must file them electronically. The count aggregates all information return types, not just 1099-MISC forms.³ Five 1099-NEC forms plus five 1099-MISC forms hits the threshold, and all of them must be e-filed. Paper filing is only for payers with fewer than 10 total returns.

Backup Withholding

If a provider fails to furnish a taxpayer identification number, the payer must withhold 24% of each payment as backup withholding.⁴ The withheld amount goes in Box 4 of the same 1099-MISC, and the total gets reported to the IRS on Form 945. Backup withholding is not an added tax on the provider; it is a prepayment credited when they file. The burden is on the payer, which is why the W-9 belongs at the front of the relationship.

Penalties and Corrections

The IRS imposes separate penalties for late IRS filings and for late or incorrect statements sent to recipients. For returns due in 2026, the per-form penalty scales with delay:⁵

Up to 30 days late: $60 per return.
31 days late through August 1: $130 per return.
After August 1 or never filed: $340 per return.
Intentional disregard: a $680 minimum per return, with no cap.

The same schedule applies to late or incorrect recipient statements.⁶ A payer who is late with both the IRS filing and the provider’s copy can face both penalties on the same form. Small businesses with average annual gross receipts of $5 million or less get reduced maximum caps, though the per-return amounts don’t change.

To correct a wrong Box 6 amount on paper, do not check the VOID box. A checked VOID tells IRS scanning equipment to ignore the form entirely, and the correction never reaches IRS records.¹ Check the CORRECTED box at the top of the new form and follow the procedures in the General Instructions for Certain Information Returns. Electronic corrections run through the IRS FIRE system or the IRIS portal.

How Providers Report Box 6 Income

A provider who receives a 1099-MISC with an amount in Box 6 reports that income on Schedule C (Profit or Loss From Business), attached to Form 1040. Legitimate business expenses subtract from gross income on Schedule C to arrive at net profit, and that net profit drives both income tax and self-employment tax.

Self-Employment Tax

Net profit from Schedule C flows to Schedule SE. The combined self-employment tax rate is 15.3%: 12.4% for Social Security and 2.9% for Medicare.⁷ The Social Security portion applies only to net earnings up to $184,500 in 2026.⁸ Earnings above that cap are subject only to the 2.9% Medicare tax, which has no ceiling.

High earners face an additional 0.9% Medicare tax on self-employment income above $200,000 for single filers or $250,000 for married couples filing jointly.⁹ The effective Medicare rate on earnings above those thresholds is 3.8%.

You can deduct half of your self-employment tax as an adjustment to income on Schedule 1 of Form 1040.¹⁰ This mirrors how employers pay half of FICA for their employees. It reduces adjusted gross income and therefore income tax, though it does not reduce the self-employment tax itself.

Business Deductions

Every dollar of legitimate business expense on Schedule C reduces both income tax and self-employment tax. Common deductions for medical providers include professional supplies, equipment depreciation, office rent, malpractice insurance premiums, continuing education costs, and travel directly related to patient care.

Quarterly Estimated Tax Payments

Box 6 income arrives without withholding, so providers generally need quarterly estimated tax payments to avoid an underpayment penalty. For 2026, the deadlines are April 15, June 15, September 15, and January 15, 2027.¹¹

You avoid the penalty if total payments through withholding and estimated tax cover at least 90% of the current year’s tax liability, or 100% of last year’s tax, whichever is smaller. If adjusted gross income last year exceeded $150,000, that second safe harbor rises to 110% of last year’s tax.¹¹ Setting aside roughly 25% to 30% of each payment is a reasonable starting point until you can calculate a more precise number.

When the Numbers Don’t Match

The IRS runs an automated matching program that compares Box 6 amounts on 1099-MISC forms against what providers report on their returns. When the numbers don’t line up, the IRS sends a CP2000 notice proposing an adjustment. A CP2000 is not a bill and not an audit; it is a letter identifying a discrepancy and calculating what might be owed.¹²

If the proposed adjustment is wrong, respond with documentation explaining the difference. Common reasons for mismatches include payers reporting an incorrect amount, providers properly offsetting income with expenses on Schedule C, and timing differences between when payment was received and when it was reported. If you don’t respond by the date on the notice, the IRS sends a Statutory Notice of Deficiency, which begins a more formal process and can add interest and penalties.¹² A prompt response, even one that disagrees, keeps the matter manageable.

1
Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC
2
Internal Revenue Service. Form W-9 (Rev. March 2024) Request for Taxpayer Identification Number and Certification
3
Federal Register. Electronic-Filing Requirements for Specified Returns and Other Documents
4
Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide
5
Internal Revenue Service. Information Return Penalties
6
Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns – For Use in Preparing 2026 Returns
7
Internal Revenue Service. 2025 Schedule SE (Form 1040)
8
Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet
9
Internal Revenue Service. Topic No. 560, Additional Medicare Tax
10
Internal Revenue Service. Topic No. 554, Self-Employment Tax
11
Internal Revenue Service. 2026 Form 1040-ES
12
Internal Revenue Service. Topic No. 652, Notice of Underreported Income – CP2000