IRS Form 1095: Health Insurance Coverage Reporting Under the ACA

The 1095 series; Form 1095-A, 1095-B, and 1095-C; are the health insurance reporting forms created by the Affordable Care Act. While the federal individual mandate penalty was reduced to $0 starting in 2019 by the Tax Cuts and Jobs Act, these forms remain important. Form 1095-A in particular is useful for anyone who received marketplace health insurance subsidies; without it, you cannot properly reconcile your Premium Tax Credit on Form 8962, and you may owe back thousands of dollars or miss out on a substantial refund.

History and Origin

The 1095 forms were created as part of the Affordable Care Act (ACA), signed into law on March 23, 2010. The ACA's individual mandate required most Americans to maintain minimum essential health coverage or pay a tax penalty (the "shared responsibility payment"). To enforce this requirement and administer the Premium Tax Credit, the IRS needed a way to verify who had health coverage and what they paid for it.

Three forms were designed for three different coverage sources:

• Form 1095-A; issued by Health Insurance Marketplaces (exchanges like HealthCare.gov) to individuals who enrolled in marketplace plans
• Form 1095-B; issued by health insurance providers, government programs (Medicaid, CHIP, Medicare, TRICARE), and small employers who self-insure, to confirm that individuals had minimum essential coverage
• Form 1095-C; issued by Applicable Large Employers (ALEs) — employers with 50 or more full-time employees; to report the health coverage they offered (or did not offer) to employees

The forms were first issued for the 2014 tax year (the first year the individual mandate was fully in effect). The initial rollout was bumpy; many taxpayers and employers were confused about the forms, and the IRS extended deadlines multiple times. The employer reporting requirements (1095-B and 1095-C) were delayed by one year, not taking effect until the 2015 tax year.

The Tax Cuts and Jobs Act of 2017 reduced the individual mandate penalty to $0 starting in 2019, effectively eliminating the penalty for not having coverage. However, the 1095 forms were not eliminated; they continue to be issued because the Premium Tax Credit still exists, and several states have enacted their own individual mandates with penalties.

Who Files It and When

Form 1095-A; Health Insurance Marketplace Statement

Issued by the marketplace to anyone who enrolled in a marketplace plan. You do not file this form; you receive it. It is typically sent by January 31 following the coverage year. If you received advance Premium Tax Credit payments (subsidies that reduced your monthly premiums), Form 1095-A is required to complete Form 8962 to reconcile the credit.

Form 1095-B; Health Coverage

Issued by insurance companies, government programs, and certain small employers. Like 1095-A, this is sent to you; you do not file it. It simply confirms that you (and your covered family members) had minimum essential coverage during the year. The deadline for issuance has been extended to March 2 in recent years.

Form 1095-C; Employer-Provided Health Insurance Offer and Coverage

Issued by ALEs (employers with 50+ full-time employees) to their full-time employees. The form has three parts: Part I identifies the employee and employer; Part II describes the coverage offered each month (using code indicators), and Part III, if applicable, lists the individuals covered under the employer's self-insured plan. This form is due to employees by March 2 and filed with the IRS by February 28 (paper) or March 31 (electronic).

For employers, Forms 1095-B and 1095-C are accompanied by transmittal forms (1094-B and 1094-C) that summarize the information and are filed with the IRS.

Key Sections Explained

Form 1095-A — What the Numbers Mean

The most important columns on Form 1095-A are:

• Column A — Monthly Enrollment Premium: The total monthly premium for the plan before any subsidies
• Column B — Monthly SLCSP Premium: The premium for the second-lowest cost Silver plan in your area. This number is used to calculate your Premium Tax Credit. If this is incorrect, your entire credit calculation will be wrong.
• Column C — Monthly Advance Payment of PTC: The amount of Premium Tax Credit that was paid in advance directly to your insurance company each month. This is the amount you must reconcile on Form 8962.

If the advance payments were higher than the credit you are entitled to (because your income was higher than estimated), you must repay the excess. If the advance payments were lower, you receive the difference as a refund.

Form 1095-C — Code Indicators

Part II of Form 1095-C uses code indicators to describe the employer's coverage offer for each month. Line 14 codes describe the type of coverage offered (e.g., Code 1A means minimum essential coverage was offered to the employee only). Line 16 codes describe safe harbors or other conditions the employer relies on for penalty avoidance. These codes are primarily relevant for employer ACA compliance, but they can affect your eligibility for the Premium Tax Credit if you are also a marketplace enrollee.

Common Mistakes

• Not waiting for Form 1095-A before filing. If you had marketplace coverage with subsidies, you cannot accurately complete your tax return without Form 1095-A. Filing without it may result in an incorrect Premium Tax Credit calculation and a later IRS notice requiring you to repay excess credits.
• Ignoring an incorrect 1095-A. If the SLCSP premium (Column B) is wrong on your 1095-A, your entire credit calculation will be wrong. Contact the marketplace to request a corrected form. You can also look up the correct SLCSP premium on HealthCare.gov.
• Thinking 1095-B and 1095-C must be attached to your return. They do not need to be attached. Keep them for your records in case of an IRS inquiry, but do not send them with your return.
• Not filing Form 8962 when required. If you received advance Premium Tax Credit payments and do not file Form 8962, the IRS will send a notice and may reduce or deny future advance credits.
• Forgetting state mandate requirements. While the federal penalty is $0, states including California, Massachusetts, New Jersey, Rhode Island, and the District of Columbia have their own individual mandates with financial penalties. You may still need your 1095 forms for state filing purposes.

Recent Changes

One recent development is the continued extension and expansion of enhanced Premium Tax Credits. The American Rescue Plan Act of 2021 temporarily increased credit amounts and eliminated the income cap (previously 400% of the federal poverty level). The Inflation Reduction Act of 2022 extended these enhanced credits through 2025. These changes make Form 1095-A and Form 8962 more important than ever for marketplace enrollees.

The IRS has also extended deadlines for issuance of Forms 1095-B and 1095-C multiple times, giving employers and insurers additional time to prepare and distribute the forms. The current deadline for providing forms to individuals is typically in early March, rather than the original January 31 deadline.

For employer reporting, the IRS finalized regulations in 2024 allowing employers to post Forms 1095-C on a secure website instead of mailing them to employees, provided certain notice and consent requirements are met.

For more details, visit the official IRS page for Form 1095-A.

This article is educational and does not constitute tax advice. Consult a qualified tax professional for guidance specific to your situation.