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What is Form 1095-C?

Short answer

Form 1095-C is a tax form that large employers are required to file under the Affordable Care Act (ACA). It reports whether your employer offered you health insurance, the type of coverage offered, and the months it was available. You don’t file it with your tax return, but it can affect whether you qualify for a premium tax credit (PTC).

See details

Sending and receiving Form 1095-C

Applicable Large Employers (ALEs)—companies with 50 or more full-time employees, including full-time equivalent employees (FTEs)—are required to send a 1095-C form to the IRS.

Note: As of the 2024 tax year, they’re no longer required to automatically send it to employees. Many still do. If yours doesn’t, it must post a notice on its website explaining how to request a copy—and provide it by January 31 or within 30 days of your request, whichever is later.

A 1095-C must be filed for any employee who was full-time for one or more months during the calendar year, even if they declined the employer’s plan. Part-time employees who weren’t enrolled in coverage typically don’t receive one. They may receive one, though, if they were enrolled in an employer plan that’s self-insured.

What’s included on Form 1095-C

PartWhat it covers
Part IEmployee and employer identifying information.
Part IIOffer of coverage: Line 14 codes (1A–1U) describe the type of coverage offered each month to you only or also to your spouse and dependents. Line 15 shows your required contribution for the lowest-cost, self only plan. Line 16 codes signal any relief that applies, such as a safe harbor showing why a penalty may not apply.
Part IIISelf-insured coverage only; lists every individual enrolled in the employer’s self-funded plan, with months covered. Left blank if the plan is fully insured.

Source: Internal Revenue Service

Does Form 1095-C affect your taxes or your premium tax credit?

If your employer offered coverage that met minimum essential coverage (MEC) standards and was considered affordable—generally costing less than a set percentage of your household income—you typically won’t qualify for the PTC for the months that coverage was offered—even if you turned the employer’s coverage down. The information in Part II, Lines 14-16 on your 1095-C form signals this to the IRS.

A few places still require coverage and may charge a penalty, such as:

  • California
  • New Jersey
  • Rhode Island
  • Massachusetts
  • Washington D.C.

You might need this form when filing a state return if you live in one of these states.

For most filers, Form 1095-C is reference-only. The federal individual mandate penalty has been $0 since 2019, so typically, you don’t attach the form to your return or enter anything from it in tax software.

When you’ll receive Form 1095-C and what to do with it

If your employer sends the form automatically, you’ll typically have it by early March. If it doesn’t, you can request a copy, and it must provide one by January 31 or within 30 days of your request, whichever is later.

When it arrives:

  • Check it for accuracy.
  • Save it with your tax records. You don’t attach it to your return.
  • Reference it if you also had Marketplace coverage (it helps confirm whether you were eligible for a PTC).
  • If anything looks wrong, contact your employer’s HR department to request a corrected form.

You don’t need to wait for Form 1095-C to file your return. You can prepare and file using other records about your health coverage.

Form 1095-C vs. 1095-B vs. 1095-A

FormSent byTax filing impact
1095-AHealth Insurance MarketplaceRequired. Use it to prepare and file Form 8962 to claim or reconcile the premium tax credit.
1095-BInsurer, government program, or small self-insured employerInformational only. Keep for your records, no filing action needed.
1095-CLarge employer (ALE)Informational. It can affect PTC eligibility if you also had Marketplace coverage.

Source: Internal Revenue Service