The The Affordable Care Act (ACA) created important health coverage and reporting obligations for employers, insurers, and health coverage providers. For employers, especially Applicable Large Employers (ALEs), ACA compliance requires accurate tracking of employee eligibility, health coverage offers, affordability, minimum value, and annual IRS reporting.
ACA reporting can be complex because it involves workforce size calculations, health plan data, employee demographic information, IRS forms, filing deadlines, and potential penalties. Employers that use clear processes, accurate data, and reliable reporting tools are better positioned to meet their obligations and avoid costly corrections or penalty assessments.
This article explains the major ACA reporting requirements for employers, including who must report, which forms are used, key filing deadlines, affordability rules, alternative furnishing options, penalties, and practical compliance considerations.
Important: This article is for general informational purposes only and does not constitute legal, tax, or accounting advice. ACA requirements may vary based on employer size, funding arrangement, workforce structure, state reporting obligations, and plan design. Employers should consult their legal, tax, or benefits advisors for guidance specific to their organization.
Overview of the Affordable Care Act (ACA)
The Affordable Care Act introduced significant changes to health care law, including rules related to employer-sponsored health coverage, affordability, minimum value, and annual information reporting.
For employers, ACA compliance generally means understanding whether the organization is subject to the employer shared responsibility provisions and, if applicable, meeting the related coverage and reporting requirements.
Key ACA concepts for employers include:
- Applicable Large Employer (ALE) status
- Minimum Essential Coverage (MEC)
- Minimum Value
- Affordability
- Full-time employee tracking
- Dependent coverage obligations
- IRS reporting using Forms 1094-C and 1095-C
- Potential Employer Shared Responsibility Payments (ESRP)
The federal individual mandate penalty was reduced to zero beginning in 2019. However, employer responsibilities under the ACA remain in place for ALEs. Some states also maintain their own individual mandate or state reporting requirements, which may create additional obligations for employers with employees or covered individuals in those states.
Key Elements of ACA Compliance
Employers should focus on the following areas when managing ACA compliance.
Employer Responsibility
Applicable Large Employers must determine whether they are required to offer affordable health coverage that provides minimum value to full-time employees and their dependents.
Employee Eligibility Tracking
Employers must identify full-time employees under ACA rules. A full-time employee is generally an employee who works at least 30 hours per week or 130 hours per month.
Coverage Offers
Employers must track whether coverage was offered to full-time employees and dependents for each month of the calendar year.
Affordability
Coverage must be affordable under ACA rules. Because employers usually do not know an employee’s household income, they may use one of the IRS affordability safe harbors:
- Federal Poverty Line safe harbor
- Rate of Pay safe harbor
- W-2 Wages safe harbor
Minimum Value
An employer-sponsored plan generally provides minimum value if it covers at least 60% of the total allowed cost of benefits expected to be incurred under the plan.
Reporting
Employers subject to ACA reporting must prepare and file the appropriate IRS forms and, unless using an allowed alternative furnishing method, provide statements to employees or covered individuals.
Affordable Care Act Tax Provisions
The ACA includes several tax-related provisions that affect individuals, employers, insurers, and other coverage providers.
Individual Tax Provisions
The ACA originally included an individual mandate requiring most individuals to maintain health coverage or pay a federal penalty. The federal penalty was reduced to zero beginning in 2019.
Some individuals and families may qualify for premium tax credits when purchasing qualified health coverage through the Health Insurance Marketplace. Premium tax credits help reduce the cost of Marketplace coverage for eligible individuals.
Employer Tax Provisions
The ACA established employer shared responsibility provisions, also known as the employer mandate. These provisions generally apply to Applicable Large Employers, which are employers with 50 or more full-time employees, including full-time equivalent employees, during the prior calendar year.
ALEs may be subject to penalties if they do not offer minimum essential coverage to enough full-time employees and dependents, or if the coverage offered is not affordable or does not provide minimum value, and at least one full-time employee receives a premium tax credit through the Marketplace.
Tax Reporting and Compliance
ACA reporting requires certain employers and coverage providers to submit annual information returns to the IRS and furnish statements to employees or covered individuals.
Common employer-related ACA forms include:
- Form 1094-C: Transmittal of Employer-Provided Health Insurance Offer and Coverage Information Returns
- Form 1095-C: Employer-Provided Health Insurance Offer and Coverage
- Form 1094-B: Transmittal of Health Coverage Information Returns
- Form 1095-B: Health Coverage
ACA Reporting Deadlines: Important Dates for the 2026 Reporting Year Filed in 2027
Meeting deadlines is essential for ACA compliance. For calendar year 2026 coverage, reported on forms furnished and filed in 2027, employers should plan around the following deadlines.
Employee / Individual Furnishing Deadline
Employers must furnish Forms 1095-C or 1095-B to employees or covered individuals, or satisfy the allowed alternative furnishing method when applicable, by:
March 2, 2027
The statutory furnishing deadline is generally January 31, but IRS regulations provide an automatic 30-day extension. Because January 31, 2027 falls on a Sunday, the adjusted January 31 date would move to the next business day before applying the automatic extension timing, resulting in a practical furnishing deadline of March 2, 2027.
IRS Electronic Filing Deadline
Employers filing ACA information returns electronically must file by:
March 31, 2027
Electronic filing is generally required for filers with 10 or more aggregate information returns. This threshold includes almost all information return types covered by the IRS electronic filing regulations, not just ACA forms.
ACA information returns filed electronically are submitted through the IRS ACA Information Returns (AIR) system.
IRS Paper Filing Deadline
Paper filing is generally only available to filers below the IRS electronic filing threshold.
The standard paper filing deadline is February 28. If February 28 falls on a weekend or legal holiday, the deadline moves to the next business day.
For the 2026 reporting year filed in 2027, February 28, 2027 falls on a Sunday. Therefore, the projected paper filing deadline is:
March 1, 2027
Filing Extensions
Employers may request an automatic 30-day extension of time to file with the IRS by submitting Form 8809 on or before the original filing due date.
This extension applies to filing with the IRS. It does not automatically extend the furnishing deadline for employee or individual statements.
ACA Coverage Requirements for Employers
For employer mandate purposes, ALEs should focus on whether coverage:
- Provides minimum essential coverage
- Is affordable under ACA rules
- Provides minimum value
- Is offered to full-time employees and their dependents
- Is tracked and reported accurately for each applicable month
Minimum Essential Coverage
Minimum Essential Coverage, often abbreviated as MEC, generally refers to coverage that satisfies the ACA’s baseline coverage requirement.
Minimum Value
An employer-sponsored plan generally provides minimum value if it covers at least 60% of the total allowed cost of benefits expected to be incurred under the plan.
Affordability
Coverage is considered affordable for employer mandate purposes if the employee’s required contribution for self-only coverage does not exceed the applicable affordability percentage.
For plan years beginning in 2027, the affordability percentage is:
10.22%
This increased from the 2026 affordability percentage of:
9.96%
Employers should confirm the applicable affordability percentage each year before finalizing employee contribution rates.
Life Insurance Is Not Part of the ACA Employer Mandate
Life insurance is not part of the ACA employer mandate. The ACA employer mandate focuses on qualifying health coverage, affordability, minimum value, full-time employee coverage offers, and related reporting.
How to Determine Affordability
Employers may use one of three affordability safe harbors to determine whether coverage is affordable for employer mandate purposes.
Federal Poverty Line Safe Harbor
Under the Federal Poverty Line safe harbor, coverage is affordable if the employee’s monthly required contribution for the lowest-cost self-only coverage that provides minimum value does not exceed the applicable affordability percentage multiplied by the federal poverty guideline for a single individual.
For plan years beginning in 2027, using the 2026 federal poverty guideline for one person in the 48 contiguous states and Washington, D.C.:
$15,960 × 10.22% ÷ 12 = $135.93
This means the maximum monthly employee contribution under the Federal Poverty Line safe harbor is:
$135.93 per month
Rate of Pay Safe Harbor
Under the Rate of Pay safe harbor, affordability is determined using the employee’s rate of pay. For hourly employees, employers generally multiply the hourly rate by 130 hours and then apply the applicable affordability percentage.
W-2 Wages Safe Harbor
Under the W-2 Wages safe harbor, affordability is determined using the employee’s Box 1 W-2 wages for the year.
Recent Affordability Percentages
| Plan Year | Affordability Percentage |
|---|---|
| 2023 | 9.12% |
| 2024 | 8.39% |
| 2025 | 9.02% |
| 2026 | 9.96% |
| 2027 | 10.22% |
Employers should not assume the affordability percentage will continue moving in one direction. The percentage has fluctuated in recent years.
Working with Insurance Providers and Agencies
Insurance carriers, agencies, brokers, third-party administrators, payroll providers, and ACA compliance vendors may all play a role in ACA compliance.
Employers should confirm who is responsible for each part of the process, including:
- Coverage data collection
- Employee eligibility tracking
- Affordability calculations
- Form preparation
- IRS filing
- Employee or individual furnishing
- Correction filing
- State reporting, if applicable
- Audit or penalty response support
Clear ownership is important because ACA reporting depends on accurate data from multiple systems and stakeholders.
Health Plans and Coverage Options
Employers may offer different types of health coverage arrangements, depending on employer size, funding strategy, workforce needs, and plan design.
Common arrangements may include:
- Fully insured employer-sponsored plans
- Self-insured employer-sponsored plans
- Individual Coverage HRAs
- Other health reimbursement arrangements
- Small group coverage
- Individual coverage options outside the employer plan context
For ACA employer reporting, the most important question is not simply what type of plan exists, but whether the employer has properly tracked and reported:
- Who was offered coverage
- Which months coverage was offered
- Whether coverage met minimum essential coverage standards
- Whether coverage provided minimum value
- Whether coverage was affordable
- Which individuals were enrolled, if self-insured coverage was provided
Health Care Sharing Ministries
Health care sharing ministries operate outside traditional insurance arrangements. These arrangements are generally not treated as ACA-compliant employer-sponsored health coverage.
Individuals considering health care sharing arrangements should carefully evaluate whether the arrangement meets their health care needs and whether it satisfies any applicable federal or state coverage requirements.
Employers should not assume that a health care sharing ministry satisfies ACA employer mandate obligations.
Managing Medical Costs and Benefits
ACA compliance is only one component of a broader employer benefits strategy. Employers also need to manage health plan costs, employee communication, eligibility processes, enrollment workflows, and data accuracy.
Practical steps include:
- Reviewing contribution rates before the plan year begins
- Confirming affordability safe harbor strategy
- Monitoring variable-hour and seasonal employees
- Auditing eligibility data
- Reviewing coverage offer records
- Confirming dependent coverage rules
- Ensuring payroll deductions align with plan rates
- Keeping documentation for IRS inquiries or penalty responses
Who Is Required to Report Under the Affordable Care Act?
ACA reporting obligations depend on employer size and whether the employer sponsors self-insured coverage.
Applicable Large Employers
Applicable Large Employers generally must file Forms 1094-C and 1095-C.
An employer is generally an ALE for a calendar year if it averaged at least 50 full-time employees, including full-time equivalent employees, during the prior calendar year.
ALEs must report information about offers of health coverage to full-time employees. Self-insured ALEs must also report enrollment information for individuals covered under the self-insured plan.
Self-Insured Employers
Employers that sponsor self-insured health coverage have additional reporting responsibilities because they are reporting coverage provided to enrolled individuals.
A self-insured ALE generally reports coverage information using Form 1095-C, including Part III for covered individuals.
A self-insured employer that is not an ALE generally uses Forms 1094-B and 1095-B.
Small Employers
Small employers with fewer than 50 full-time employees, including full-time equivalents, are generally not subject to the employer shared responsibility provisions.
However, a small employer may still have ACA reporting obligations if it sponsors a self-insured health plan.
Determining How Many Employees an Employer Has
Determining ALE status requires calculating the employer’s workforce size for the prior calendar year.
Full-Time Employees
A full-time employee is generally an employee who works at least:
- 30 hours per week, or
- 130 hours per month
Full-Time Equivalent Employees
Part-time employee hours are aggregated and converted into full-time equivalent employees for purposes of determining ALE status.
Annual Determination
Employers should calculate ALE status each year because changes in workforce size, seasonal staffing, variable-hour employees, and part-time employee hours can affect whether the employer is an ALE.
How does the ACA affect my company?
The ACA affects employers differently depending on size, funding arrangement, and workforce structure.
Applicable Large Employers
ALEs must be prepared to:
- Offer minimum essential coverage to at least 95% of full-time employees and their dependents
- Confirm that coverage is affordable
- Confirm that coverage provides minimum value
- Track offers of coverage by month
- File Forms 1094-C and 1095-C
- Furnish Forms 1095-C or satisfy a permitted alternative furnishing method
- Respond to IRS penalty notices, if received
Small Businesses
Small businesses with fewer than 50 full-time employees, including full-time equivalents, are generally not subject to the employer mandate.
However, they may still need to consider:
- Whether they offer self-insured coverage
- Whether state reporting obligations apply
- Whether they qualify for small business health care tax credits
- Whether benefits data must be shared with a carrier, broker, payroll provider, or compliance vendor
Self-Insured Employers
Self-insured employers must pay close attention to enrollment data because they are reporting who was actually covered under the plan.
This includes covered employees, spouses, dependents, COBRA participants, retirees, and other covered individuals when applicable.
What Are the ACA Reporting Requirements for Employers?
Employers subject to ACA reporting must file specific forms depending on employer size and funding arrangement.
Form 1095-C
Form 1095-C reports information about the health coverage offered to full-time employees by an Applicable Large Employer.
For self-insured ALEs, Form 1095-C also reports covered individual information in Part III.
Form 1094-C
Form 1094-C is the transmittal form submitted with Forms 1095-C. It summarizes employer-level information and transmits the 1095-C forms to the IRS.
Form 1095-B
Form 1095-B reports health coverage information for covered individuals. It is generally used by coverage providers and self-insured employers that are not ALEs.
Form 1094-B
Form 1094-B is the transmittal form submitted with Forms 1095-B.
Form 1095-A
Form 1095-A is issued by the Health Insurance Marketplace to individuals who enrolled in Marketplace coverage. Employers generally do not prepare Form 1095-A as part of employer ACA reporting.
Employer ACA reporting typically involves Forms 1094-C / 1095-C for ALEs and Forms 1094-B / 1095-B for certain self-insured non-ALEs.
Alternative Manner of Furnishing Statements to Individuals
Employers and other reporting entities may be able to use an alternative furnishing method instead of automatically mailing or emailing Forms 1095-B or 1095-C to every covered individual or employee.
Under the Paperwork Burden Reduction Act and IRS guidance, the federal furnishing requirement may be satisfied by posting a clear, conspicuous, and accessible notice on a website stating that individuals may request a copy of their Form 1095-B or 1095-C.
Notice Requirements
The notice should:
- Be clear and conspicuous
- Be posted on a website reasonably accessible to the individuals who would otherwise receive a form
- State that individuals may request a copy of their statement
- Include contact information for requesting the form or asking questions
- Include an email address
- Include a physical mailing address
- Include a phone number
- Be posted by the applicable furnishing deadline
- Remain posted through October 15 of the year following the coverage year
Timing for Requested Forms
For 2026 forms furnished in 2027, requested forms must generally be provided by the later of:
- January 31, 2027, or
- 30 days after the date of the request
Important Considerations
Before relying on the alternative furnishing method, employers should consider:
- Whether the organization has employees or covered individuals in states with separate reporting or furnishing rules
- Whether state rules still require direct furnishing
- Whether the employer has a reliable process to receive, track, and fulfill requests
- Whether the website notice is accessible and maintained through the required date
- Whether customer service or HR staff know how to respond to form requests
The alternative furnishing method is optional. Employers may continue furnishing forms automatically if that is easier or operationally safer.
Assessments and Penalties for Failure to Offer Affordable and Adequate Health Insurance
Failure to comply with ACA employer mandate or reporting requirements can result in significant penalties.
Employer Shared Responsibility Payment Under Section 4980H(a)
An ALE may owe a penalty under Section 4980H(a) if:
- The employer does not offer minimum essential coverage to at least 95% of full-time employees and their dependents, and
- At least one full-time employee receives a premium tax credit through the Health Insurance Marketplace
For calendar year 2027, the Section 4980H(a) penalty amount is:
$3,780 annually per full-time employee
This penalty is calculated based on all full-time employees, excluding the first 30 full-time employees.
Monthly equivalent:
$315.00 per month
Employer Shared Responsibility Payment Under Section 4980H(b)
An ALE may owe a penalty under Section 4980H(b) if:
- The employer offers minimum essential coverage to at least 95% of full-time employees and their dependents, but
- The coverage is unaffordable, does not provide minimum value, or is not offered to a particular full-time employee, and
- At least one full-time employee receives a premium tax credit through the Health Insurance Marketplace
For calendar year 2027, the Section 4980H(b) penalty amount is:
$5,670 annually per affected full-time employee who receives a premium tax credit
Monthly equivalent:
$472.50 per month
Additional Reporting Penalties
Employers may also face penalties for:
- Failing to file required ACA forms
- Filing forms late
- Filing incorrect forms
- Failing to furnish required statements
- Furnishing incorrect statements
These penalties are adjusted periodically and may vary based on how quickly corrections are made. Employers should check the IRS Information Return Penalties page for current per-form penalty amounts for the applicable filing year.
How to Appeal a Penalty Assessment
Employers that receive an IRS penalty notice should respond carefully and promptly.
Step 1: Review the IRS Notice
Employers should carefully review IRS Letter 226J or any related correspondence to understand the proposed penalty, affected employees, tax year, and response deadline.
Step 2: Validate the Data
Compare the IRS information against internal records, including:
- Forms 1094-C and 1095-C
- Employee eligibility data
- Offer of coverage records
- Payroll contribution records
- Affordability calculations
- Enrollment records
- Waiver records
- Termination and leave records
Step 3: Prepare the Response
Employers may need to return Form 14764 and supporting documentation to agree or disagree with the proposed assessment.
Step 4: Keep Documentation
Maintain copies of all IRS correspondence, internal analysis, corrected forms, and supporting records.
Gathering and Submitting Data to Meet ACA Reporting Requirements
ACA reporting depends on accurate data from HR, payroll, benefits administration, insurance carriers, and other systems.
Employers should build a repeatable process for collecting, reviewing, and validating data before forms are produced.
Employee Eligibility Tracking
Employers should track:
- Hire dates
- Termination dates
- Rehire dates
- Employment status changes
- Full-time, part-time, seasonal, and variable-hour status
- Hours of service
- Measurement periods
- Stability periods
- Administrative periods
- Leave of absence status
Coverage Details
Employers should track:
- Coverage offer dates
- Coverage effective dates
- Coverage termination dates
- Enrollment elections
- Waivers
- COBRA offers and enrollment
- Dependent coverage offers
- Self-only premium cost
- Lowest-cost minimum value plan
- Employee contribution amounts
- Plan funding type
Affordability Data
Employers should document:
- Selected affordability safe harbor
- Employee contribution amount
- Applicable affordability percentage
- Federal poverty line amount, if using the FPL safe harbor
- Rate of pay, if using the rate of pay safe harbor
- W-2 wages, if using the W-2 safe harbor
Data Validation
Before filing, employers should review:
- Employee names and Social Security numbers
- Dates of birth when SSNs are not available where permitted
- Address data
- Employer EIN
- ALE member information
- Aggregated ALE group information, if applicable
- Offer codes
- Safe harbor codes
- Covered individual months for self-insured plans
Key Compliance Challenges
Common ACA compliance challenges include:
- Incomplete employee data
- Incorrect Social Security numbers
- Missing coverage offer records
- Incorrect affordability calculations
- Misclassified employees
- Variable-hour employee tracking errors
- Missed filing deadlines
- Incorrect 1095-C coding
- Lack of documentation for waivers or declined coverage
- Confusion over state reporting requirements
- Failure to monitor IRS acknowledgments after electronic filing
Employers should not wait until year-end to clean up ACA data. The most reliable ACA reporting processes are maintained throughout the year.
IRS Information and Guidance
The IRS provides extensive resources to help employers meet Affordable Care Act guidelines. Some useful tools include:
- FAQs on ACA Reporting: Covers common employer questions.
- Affordable Care Act tax provisions for employers: Details employer responsibilities under the ACA.
- IRS AIR System: Enables electronic filing of ACA forms.
Employers should review these resources on a regular basis to stay informed and compliant.
ACA Reporting and Compliance Resources
Various resources are available to make ACA reporting and compliance manageable for your company, including:
ACA Training
Education is a key component of compliance. Employers can access the following training resources:
- Webinars and Workshops: Provide up-to-date Affordable Care Act training for employers. Check our latest webinars here
- Online Courses: There are many online courses available that cover Affordable Care Act reporting requirements for employers in detail.
- Expert Support: My Benefits Channel provides guidance from experienced professionals who can help you reduce errors and improve accuracy.
Ongoing training ensures compliance with the latest ACA rules for employers.
ACA Software Solutions
Compliance software simplifies ACA requirements for employers by automating key processes:
- FTE Tracking: Helps calculate employee eligibility.
- Form Preparation: Generates and files Forms 1094-C and 1095-C electronically.
- Risk Management: Provides centralized risk management tools to ensure accuracy.
Employers can choose from a variety of compliance apps tailored to their needs, including myBenefitsChannel’s ACA reporting and compliance software solutions.
Simplify ACA Compliance Through Outsourcing
Outsourcing ACA compliance offers several benefits:
- Expert Assistance: Experienced providers handle reporting and documentation.
- Time Savings: Reduces the administrative burden on HR teams.
- Cost Efficiency: Minimizes risks of penalties and mailing and print costs.
Employers should evaluate outsourcing options to simplify compliance efforts.
