The 1095-C is your employer's record of health insurance they offered you

The Form 1095-C is a document your employer sends you if they offered health insurance coverage to you during the year. It reports what coverage was available, who in your household was covered, and how much you paid toward premiums. The IRS uses this form to verify that you had health insurance and to check whether your employer met their own insurance obligations.

You receive a 1095-C only if your employer had 50 or more full-time employees (including part-time workers counted as full-time equivalents). Smaller employers do not send this form. If you worked for multiple employers during the year, you may receive more than one 1095-C.

The form itself does not determine your tax liability or your refund. Instead, it provides information the IRS cross-checks against your tax return and any health insurance subsidies you received. You do not need to attach it to your return when you file, but you should keep it with your tax records.

Key Takeaways

  • Your employer sends Form 1095-C if they offered you health insurance and employed 50 or more full-time workers.
  • The form reports what coverage was offered, who was covered, and your share of the premium cost each month.
  • The IRS uses it to verify you had insurance and to check whether your employer met the Affordable Care Act's coverage requirements.
  • You do not attach the 1095-C to your tax return, but you should keep it with your records in case the IRS asks questions.
  • If the form contains errors about your coverage or cost, contact your employer's benefits department to request a corrected copy.

What information appears on the 1095-C

The form is divided into two main sections: employer information at the top, and coverage details in boxes numbered 1 through 14. Box 1A shows the months you were offered coverage. Boxes 2A through 2D list the names and Social Security numbers of everyone covered under the plan—you, your spouse, and any children.

Boxes 5A through 5H show the monthly premium amount your employer calculated you would pay for self-only coverage (just you) or family coverage (you plus dependents). This is the amount the employer used to determine whether coverage was "affordable" under tax law. Box 12 shows what you actually paid out of your paycheck each month.

The form also includes your employer's name, address, and Employer Identification Number (EIN), along with their contact information. If you need to ask questions about the numbers on your 1095-C, you will contact your employer's human resources or benefits department using this information.

Why the IRS cares about this form

Under the Affordable Care Act, employers with 50 or more full-time workers must offer health insurance to their full-time employees or face a penalty. The 1095-C proves whether your employer met that requirement. The IRS uses the form to audit employer compliance, not to penalize individual workers.

The form also matters if you received a tax credit or subsidy to help pay for health insurance bought through the marketplace (Healthcare.gov or your state's exchange). The IRS needs to verify that your employer did not offer you affordable coverage, because if they did, you would not have been may have access to to the subsidy. If there is a mismatch between what the 1095-C says and what you reported on your return, the IRS may adjust your refund or ask you to explain the difference.

What to do if your 1095-C has errors

Employers must send the 1095-C by January 31 of the year after the coverage year. If you receive one with incorrect information—wrong names, wrong months of coverage, or wrong premium amounts—contact your employer's benefits or payroll department right away. Do not wait until tax time.

Ask them to issue a corrected form, which will be marked as a "corrected" 1095-C. Your employer will also send a corrected copy to the IRS. Keep both the original and corrected versions with your records. If you file your return before receiving the corrected form, you can file an amended return once you have the correct information.

If your employer refuses to correct the form or you cannot reach them, you can file your return using the information you know to be correct and include a note explaining the discrepancy. The IRS may follow up with questions, but you will have documentation of your attempt to resolve it.

How the 1095-C affects your tax return

For most people, the 1095-C does not directly change what you owe or what you get back. If you had employer coverage all year and did not receive any marketplace subsidies, the form is straightforward a record the IRS keeps on file.

The form becomes important if you received a premium tax credit (a subsidy) when you bought insurance through the marketplace. At tax time, you must report how much credit you received and compare it to how much you were actually may have access to to based on your final income. If you received too much credit, you repay part of it. If you received too little, you get the difference as a refund. The 1095-C helps the IRS verify these numbers.

You also need the 1095-C if you are claiming an exemption from the health insurance requirement (though this applies only in rare circumstances). The form documents that you had coverage or that your employer offered it, which affects whether an exemption is valid.

Keeping records and moving forward

Store your 1095-C with your other tax documents for at least three years. The IRS can audit a return up to three years after you file it, and you will need this form to prove what coverage you had and what you paid.

If you change jobs or your coverage changes mid-year, you will receive a 1095-C from each employer. Each form covers only the months you worked there. When you file your return, you will report information from all of them if applicable.

If you did not receive a 1095-C by early February and you believe your employer should have sent one, contact your employer's benefits department. If they cannot locate it, ask them to issue a duplicate. Do not file your return without this form if your employer was required to send it—the IRS will notice the mismatch and may delay your refund while they investigate.

Frequently Asked Questions

Do I have to attach the 1095-C to my tax return?

No. You keep it with your records but do not include it with your return when you file. The IRS receives a copy directly from your employer, so they already have the information.

What if I had two jobs and received two 1095-C forms?

Keep both. Each form covers only the months you worked at that employer. If you received marketplace subsidies, you will need to report coverage from both employers to calculate whether you were may have access to to the credit.

Can I file my return if I have not received my 1095-C yet?

You can file without it if you know you had employer coverage all year and did not receive any marketplace subsidies. However, if you received a subsidy or claimed an exemption, wait for the form or contact your employer to request it before filing.

What does "affordable coverage" mean on the 1095-C?

It means your share of the premium for self-only coverage does not exceed a certain percentage of your household income (the percentage changes yearly). If coverage was affordable, you generally cannot receive a marketplace subsidy even if you bought insurance elsewhere.

Will the 1095-C affect my refund?

Only if you received a marketplace subsidy. The form helps the IRS verify whether you were may have access to to the amount you received. If there is a discrepancy, your refund may be adjusted up or down.