Do I Need to Enter Form 1095-C on My Tax Return?

You do not need to enter Form 1095-C on your tax return, and you don’t attach it either. The form itself carries the instruction: “Do not attach to your tax return. Keep for your records.”¹ Your employer sends the same information straight to the IRS, so your copy exists for verification and recordkeeping. It can still matter in two specific situations: if you bought a Marketplace plan and want the Premium Tax Credit, or if you live in a state with its own coverage mandate.

Why Nothing From the Form Goes on Your Federal Return

Applicable Large Employers, meaning organizations with 50 or more full-time equivalent employees, are required by federal law to report your health insurance offer data directly to the IRS.² The IRS already has the data. Your copy lets you check it.

There is also no longer a box on Form 1040 asking whether you had health coverage. The Tax Cuts and Jobs Act reduced the federal individual mandate penalty to $0 starting in 2019, and the IRS removed the coverage checkbox at the same time.³ For a straightforward federal filing, the 1095-C has no line to enter and no role to play.

Don’t Wait for It Before Filing

Employers have until early March to send the form. For the 2025 tax year, the deadline is March 2, 2026.⁴ That’s after many people have already filed. The IRS is explicit that the 1095-C is not needed to file, so use pay stubs showing insurance deductions or your benefits portal to confirm your coverage status and file as you normally would.³

There is one form worth waiting on, and it isn’t the 1095-C. If you enrolled in a Marketplace plan, you should receive Form 1095-A (the Health Insurance Marketplace Statement), and the IRS advises waiting for that one because you need it to reconcile Premium Tax Credit payments on Form 8962.³ Form 1095-B, sent by insurers or programs like Medicaid, is like the 1095-C: informational, not filed.⁵

When Form 1095-C Actually Matters for Your Return

The 1095-C becomes genuinely useful if you turned down your employer’s coverage and bought a Marketplace plan instead. You can only claim the Premium Tax Credit if your employer’s offer was either unaffordable or failed to provide minimum value.⁵

Part II, Line 15 of the 1095-C lists the lowest monthly premium your employer charged for self-only coverage that met minimum value. If that amount exceeded 9.96% of your household income for the 2026 plan year, the offer counts as unaffordable and you may qualify for the credit.⁶ The IRS resets this percentage annually; it was 9.02% for 2025.

The credit itself is calculated on Form 8962 using data from your 1095-A, not your 1095-C.⁷ The 1095-C sits in your files as the supporting evidence that leaving your employer’s plan for the Marketplace was justified. If you never enrolled in Marketplace coverage, Part II of the 1095-C doesn’t affect your return at all.⁵

State Coverage Mandates

The federal penalty for being uninsured is $0, but several states enforce their own coverage requirements. As of 2026, California, Massachusetts, New Jersey, Rhode Island, and the District of Columbia have active mandates with financial penalties. Vermont requires coverage but imposes no penalty.

If you live in one of these places, your 1095-C is the document that proves you had qualifying employer-sponsored coverage. State returns often include a schedule or worksheet where you enter coverage details, and the 1095-C is where those details come from. Penalty structures differ by state (some use flat dollar amounts per person, others use a percentage of household income), and each state has its own exemptions for hardship, short gaps, or unaffordable coverage. Your state tax authority’s website has the specific figures for the year you’re filing.

If the Form Is Wrong or Never Arrives

Check the codes in Part II and any dollar amount on Line 15 against what you remember about your coverage offer. If something looks off, ask your employer’s HR or benefits department for a corrected version. Employers issue a new form with the “Corrected” box checked and update what they previously sent to the IRS.⁸ Getting a correction matters most if you’re claiming the Premium Tax Credit, because a mismatch between what your employer reported and what you claim can prompt IRS questions.

If the form never shows up, file on time anyway. The IRS explicitly states it is not necessary to have the 1095-C in hand to file.⁵ Use enrollment confirmations or payroll deduction records to establish your coverage. If the form eventually arrives and contradicts what you filed in a way that affects a credit or penalty, you can amend the return.

Hold onto the form for at least three years after filing the return it relates to. The IRS generally audits returns within that window.⁹

1
Internal Revenue Service. Form 1095-C – Employer-Provided Health Insurance Offer and Coverage
2
Office of the Law Revision Counsel. 26 USC 6056 – Certain Employers Required to Report on Health Insurance Coverage
3
Internal Revenue Service. Affordable Care Act – What to Expect When Filing Your Tax Return
4
Internal Revenue Service. Instructions for Forms 1094-C and 1095-C (2025)
5
Internal Revenue Service. Questions and Answers About Health Care Information Forms for Individuals
6
Internal Revenue Service. Revenue Procedure 2025-25
7
Internal Revenue Service. Instructions for Form 8962 (2025)
8
Internal Revenue Service. 2025 Instructions for Forms 1094-C and 1095-C
9
Internal Revenue Service. IRS Audits