ACA Employer Mandate 2026: Penalties and Compliance Checklist for Washington Businesses

For businesses in Washington nearing 50 employees, the ACA employer mandate is a conversation you need to have before renewal season hits. Why? Because the 2026 penalties are steep, and they often stem from simple administrative errors—the kind that can quietly snowball into huge fines. These rules affect how you count employees, test affordability, and prepare your crucial Forms 1094-C and 1095-C. The good news is that you can get ahead of this. Most compliance risks are manageable when your HR, payroll, and finance teams all work from the same playbook.

Need a second set of eyes on ACA compliance? Schedule an ACA compliance review with WHIA before your next renewal or reporting deadline.

This guide is written for HR managers, payroll teams, controllers, and business owners at Washington companies approaching or exceeding the 50 full-time equivalent threshold. It explains how Applicable Large Employer status works, what changed for 2026 affordability and penalty amounts, what to watch on Forms 1094-C and 1095-C, and how to build a practical compliance process that fits your business.

What Does the ACA Employer Mandate Require in 2026?

The ACA employer mandate, formally called the Employer Shared Responsibility Provision, applies to Applicable Large Employers, or ALEs. In general, an ALE is an employer that averaged 50 or more full-time employees, including full-time equivalent employees, during the prior calendar year. ALEs must offer minimum essential coverage to at least 95% of full-time employees and their dependent children, and that coverage must be affordable and provide minimum value.

For 2026 plan years, the federal affordability percentage is 9.96%. That means the employee contribution for the lowest-cost, self-only minimum value plan generally cannot exceed 9.96% under the applicable affordability test. The IRS also announced 2026 employer shared responsibility payment amounts of $3,340 for the 4980H(a) penalty and $5,010 for the 4980H(b) penalty, applied annually and calculated monthly when triggered.

In plain English: if your company is an ALE, you need to prove that eligible full-time employees were offered qualifying, affordable coverage and that the offer was reported correctly. The plan design matters, but so do payroll records, measurement periods, affordability safe harbors, employee status changes, and reporting codes.

Understanding the “Pay or Play” Provision

“Pay or Play” is the common term for the ACA’s Employer Shared Responsibility Provision, which applies to Applicable Large Employers (ALEs). If your business averaged 50 or more full-time equivalent employees last year, you’re an ALE. The mandate requires you to “play” by offering affordable, minimum-value health coverage to at least 95% of your full-time employees and their dependent children. For many growing Washington businesses and established large groups, crossing this threshold is a major compliance milestone. It’s not enough to simply offer a plan; it must meet specific federal standards to avoid penalties.

If you don’t “play” by the rules, you may have to “pay.” For 2026, coverage is “affordable” if an employee’s premium share is no more than 9.96% of their household income. Failing to offer compliant coverage can trigger significant penalties, which the IRS has set at $3,340 or $5,010 per employee for 2026, depending on the violation. Avoiding these penalties goes beyond plan selection; it requires precise documentation and accurate reporting. A small error in tracking hours or calculating affordability can trigger a costly notice, which is why many businesses choose to partner with an expert.

Step 1: Are You an Applicable Large Employer (ALE)?

Your 2026 ACA obligations are based on your 2025 workforce size. A business is generally an ALE for 2026 if it averaged at least 50 full-time employees, including full-time equivalents, during 2025. A full-time employee is generally someone who averages at least 30 hours of service per week, or 130 hours of service in a month.

The calculation has two parts:

Full-time employees: Count employees who averaged 30 or more hours per week, or 130 hours in a month.
Full-time equivalents: Add the monthly hours of non-full-time employees, subject to ACA counting rules, and convert those hours into full-time equivalent employees.

Many Washington employers get surprised here. A company with 42 full-time employees and enough part-time hours can still cross the 50 full-time equivalent line. Related entities under common ownership can also create controlled group issues, where multiple companies must be analyzed together. If your headcount fluctuates because of seasonal work, project cycles, acquisitions, or multiple EINs, do not rely on a rough average.

WHIA already has a deeper explainer on the ACA employer mandate 50-employee threshold. Use that as a starting point, then confirm your actual numbers with payroll data.

How to Count Employees: Key Rules

The process of counting employees to determine ALE status involves more than just a quick headcount of your full-time staff. The IRS has specific rules for who counts, when they count, and how part-time hours are converted into full-time equivalents. Getting this calculation wrong is one of the easiest ways to fall out of compliance and face potential penalties. It requires a detailed look at your payroll data from the previous calendar year, not just a snapshot of your current team. The key is to be methodical and document your process, especially if your workforce numbers tend to fluctuate throughout the year, to ensure your final number is accurate and defensible.

Including Only U.S. Workers

When you begin your ALE calculation, it’s important to know that only employees working in the U.S. are included. If you have team members located abroad, their hours of service do not factor into your count for the employer mandate. Additionally, the ACA has a specific definition for seasonal workers. If you employ individuals for six months or less in positions that are typically seasonal—like holiday retail staff or summer agricultural workers—they are generally not included in the ALE calculation. This distinction is critical for Washington businesses in industries like agriculture, tourism, or retail that rely on a seasonal workforce to manage peak demand and need an accurate employee count.

Rules for Companies with Common Ownership

If you have ownership stakes in multiple businesses, your ACA compliance picture can get more complicated. The IRS has “controlled group” rules that may require you to combine the employee counts of several related companies to determine ALE status. This means that even if each of your businesses has fewer than 50 employees on its own, you could collectively be considered an ALE if there is common ownership. This is a crucial detail for entrepreneurs with diverse portfolios or companies that have gone through mergers or acquisitions. Untangling these relationships to ensure accurate counting is an area where expert guidance can prevent a very costly oversight.

Reporting Rules for Self-Insured Small Employers

Many business owners assume that if they are not an ALE, they are completely off the hook for ACA reporting. However, there’s a major exception for employers with self-insured health plans. If your business provides a self-insured plan, you have reporting obligations even if you have fewer than 50 full-time equivalent employees. You are still required to send reports to your employees and the IRS detailing the health coverage offered. This surprises many small businesses who chose self-funding for its flexibility but were unaware of the associated reporting duties. It’s a perfect example of how ACA compliance has nuances that extend beyond just the “pay or play” mandate for large employers.

Step 2: How to Correctly Identify Your Full-Time Employees

After you know whether you are an ALE, the next question is which employees must receive an offer of coverage. The ACA uses a 30-hour standard, but the administration can get complicated when employees have variable hours, move between locations, take leaves of absence, or change from part-time to full-time roles.

Employers typically use one of two methods to identify full-time employees:

Monthly measurement method: Determine full-time status month by month based on actual hours of service.
Look-back measurement method: Measure hours over a defined measurement period, then lock in eligibility during a stability period if the employee qualifies.

The look-back method can be helpful for employers with variable-hour employees, but only if the measurement, administrative, and stability periods are documented and followed consistently. Payroll and HRIS configuration matters. If the system is not tracking hours in a way that supports ACA reporting, the employer may have a plan document that looks compliant but records that do not support the offer of coverage.

For more detail on the hour standard, see WHIA’s guide to ACA eligibility requirements for 30-hour employees.

Special Considerations for Certain Employee Types

Teachers and Year-Round Employment Status

While the 30-hour rule seems straightforward, certain roles have unique employment structures that require a closer look. This is especially true for educational institutions and non-profits that employ teachers or other staff who don’t work a traditional 12-month schedule. According to the IRS, a full-time employee is generally someone who averages at least 30 hours of service per week or 130 hours in a month. However, the rules treat teachers differently, which can impact how schools assess their compliance with the employer mandate.

Even if they don’t work year-round, teachers are considered full-time for ACA purposes. This is where the look-back measurement method becomes particularly valuable. It allows you to establish an employee’s full-time status over a set period, which is ideal for roles with built-in breaks like summer vacation. However, using this method requires meticulous documentation of your measurement, administrative, and stability periods. Getting this wrong can lead to compliance gaps, which is why having an expert partner to help set up and monitor your tracking system is so important for many Washington schools and non-profits.

Step 3: Offer Minimum Essential Coverage to the Right People

An ALE must offer minimum essential coverage to at least 95% of its full-time employees and their dependent children. This is the coverage offer requirement tied to the larger 4980H(a) penalty. Dependent children generally means children up to age 26. Spouses are not part of the employer mandate offer requirement, although many employers choose to offer spouse coverage as part of their benefits strategy.

For Washington businesses, the risk is not usually that the medical plan fails to count as minimum essential coverage. Most major group health plans do. The bigger risk is operational: a full-time employee is missed because of a status change, waiting period error, acquisition transition, payroll coding issue, or late enrollment file.

Build a monthly reconciliation process. Compare payroll, HRIS eligibility, carrier enrollment, and ACA tracking reports. If someone is treated as full-time for payroll and ACA purposes, confirm whether an offer of coverage was made, when it was made, and how it was documented.

The 90-Day Maximum Waiting Period Rule

One of the most common operational tripwires for employers is the waiting period. The ACA is very clear on this: you cannot make a newly eligible full-time employee wait more than 90 calendar days for their health coverage to begin. This rule is absolute and doesn’t care about your payroll cycles or standard “first of the month following 60 days” policies. If that policy pushes an employee’s start date to day 91, you have a compliance problem. It’s crucial to review your waiting period language and administrative practices to ensure they align with the 90-day maximum. This is a detail where ACA employer mandate requirements are strict, and a simple miscalculation can lead to unexpected penalties for failing to make a timely offer of coverage.

Who Counts as a Dependent?

The employer mandate requires you to offer coverage not just to your full-time employees, but also to their dependent children. However, the ACA has a very specific definition of “dependent” for this purpose. According to the Internal Revenue Service, a dependent is the employee’s biological or adopted child under the age of 26. The definition does not include spouses, stepchildren, or foster children. While your company can, and often should, offer coverage to spouses and other types of dependents as part of a competitive benefits package, it’s not required for mandate compliance. Understanding this distinction is key to confirming your plan offer meets the ACA’s minimum requirements without overextending your budget based on a misunderstanding of the rules.

The IRS Definition for Employer Mandate Purposes

To put it all together, the core rule is that an Applicable Large Employer must offer minimum essential coverage to at least 95% of its full-time employees and their dependent children. This is why getting the dependent definition right is so important. Failing to offer coverage to an employee’s qualifying child under 26 could mean you’ve failed to make a proper offer of coverage, putting you out of compliance with the 95% standard. This is exactly the kind of critical detail that can get lost in the shuffle of day-to-day HR. Having a dedicated partner to review your plan documents and processes ensures these definitions are correctly applied, protecting your business from easily avoidable penalties.

Step 4: Is Your Health Coverage “Affordable” for 2026?

For 2026 plan years, affordability is based on a 9.96% required contribution percentage. The test focuses on the employee’s cost for the lowest-cost self-only plan that provides minimum value, not the cost of family coverage and not the total premium.

Because employers usually do not know each employee’s household income, the ACA allows three affordability safe harbors:

W-2 safe harbor: Compares the employee’s required contribution to Form W-2 wages.
Rate of pay safe harbor: Uses the employee’s hourly rate or monthly salary under IRS rules.
Federal poverty line safe harbor: Uses the federal poverty line as a simplified affordability benchmark.

Each safe harbor has tradeoffs. The federal poverty line safe harbor is simple but may require a lower employee contribution. The W-2 safe harbor can align with actual wages, but it may create issues for employees with unpaid leave, reduced hours, or midyear compensation changes. The rate of pay safe harbor can be practical for hourly workforces, but it needs accurate rate data.

Do not wait until Forms 1095-C are due to test affordability. Run the test during renewal, then again when pay rates, contribution tiers, or eligibility groups change. A plan that was affordable in one year may not remain affordable the next year if contributions rise faster than wages or if the federal percentage changes.

How the Affordability Percentage Has Changed Over Time

The affordability threshold isn’t a number you can set and forget. The IRS adjusts this percentage every year, and recently, it’s been climbing. To give you a clear picture, the maximum an employee could be asked to contribute for their self-only plan was 8.39% of their household income in 2024. For 2025, that number went up to 9.02%, and for 2026, it will reach 9.96%. This upward trend means you can ask employees to contribute a bit more, which might help with your budget. However, it’s also a compliance trap waiting to happen if you’re not paying attention. Using last year’s percentage for your affordability safe harbor test is a simple mistake that can lead to significant penalties. Keeping up with these annual employer shared responsibility provisions is essential during renewal season.

Step 5: Does Your Plan Provide “Minimum Value”?

Affordability is not enough. The plan must also provide minimum value. In general, a plan provides minimum value if it covers at least 60% of the total allowed cost of benefits expected to be incurred under the plan and includes substantial coverage for inpatient hospitalization and physician services.

For most fully insured plans offered by major carriers, minimum value is usually confirmed through plan materials. For self-funded, level-funded, or more customized arrangements, employers should keep documentation from the carrier, third-party administrator, actuary, or plan advisor. The goal is to have a clear file showing why the plan was treated as minimum value coverage if a question arises later.

This is especially important for Washington employers moving from a traditional fully insured plan into more flexible funding strategies. Plan design creativity can reduce costs, but it should not create preventable ACA exposure. WHIA’s large group health insurance work often includes reviewing both cost strategy and compliance guardrails together.

What Are the 2026 ACA Employer Mandate Penalties?

The employer shared responsibility penalties are commonly discussed as the A penalty and the B penalty. Both are triggered only if at least one full-time employee receives a premium tax credit through a Marketplace and the employer fails the applicable requirement.

Penalty	When it can apply	2026 annual amount	Practical risk
4980H(a)	The ALE fails to offer minimum essential coverage to at least 95% of full-time employees and dependents.	$3,340 multiplied by full-time employees, generally after excluding the first 30.	High exposure because the penalty can apply across the full-time employee population.
4980H(b)	The ALE offers coverage, but coverage is unaffordable, does not provide minimum value, or is not offered to a specific full-time employee.	$5,010 for each full-time employee who receives a premium tax credit, capped by the 4980H(a) amount.	Targeted exposure tied to affected employees and months.

The IRS calculates these amounts monthly, even though the published figures are annualized. That is why one missed month can matter, but the facts for that month matter too. If an employee was in a waiting period, not full-time under the selected measurement method, covered by a safe harbor, or coded incorrectly on a 1095-C, the response strategy will depend on documentation.

A Look at How Penalties Have Increased

The ACA penalty amounts aren’t static; the IRS adjusts them for inflation, and they have been steadily climbing. For 2026, the 4980H(a) penalty is $3,340 per full-time employee, and the 4980H(b) penalty is $5,010 for each employee who receives a subsidy. These numbers are significantly higher than when the mandate first rolled out. This upward trend means the financial risk of non-compliance grows every year. What might have been a manageable penalty in the past could now represent a serious financial threat to your business. Staying on top of these annual adjustments is a key part of your compliance strategy, ensuring you’re making decisions based on current risk levels, not outdated figures.

Calculating Potential Penalties: A Concrete Example

Let’s make these numbers real. Imagine your Washington business has 100 full-time employees. If you fail to offer coverage to at least 95% of them (the 4980H(a) rule), your potential penalty could be calculated on 70 employees (after the first 30 are excluded). That’s 70 times $3,340, for a staggering annual penalty of $233,800. Even if you offer coverage, but it’s deemed unaffordable for just five employees who then get a subsidy, you could face the 4980H(b) penalty. That would be five times $5,010, totaling $25,050. These aren’t just numbers on a government form; they represent a significant financial impact that can be avoided with the right plan and guidance. If you’re looking at these numbers and feeling overwhelmed, it’s a good time to get started with a compliance review.

How the IRS Penalty Process Works

ACA penalties don’t just appear out of thin air. The process is triggered when one of your full-time employees bypasses your company’s health plan (or lack thereof) and successfully gets a premium tax credit on the Health Insurance Marketplace. This action signals to the IRS that they need to take a closer look at your company’s compliance. From there, the IRS initiates a formal, multi-step process to determine if a penalty is owed. It begins with a formal letter and gives you a chance to respond before any final bill is sent.

Step 1: Receiving IRS Letter 226J

The first official notice you’ll receive is IRS Letter 226J. This letter is not a bill. Instead, it’s a proposal outlining the penalty the IRS believes you owe, based on the information they have. It will list the employees who received a subsidy and the proposed penalty amount, broken down by month. Your job is to respond. This is where your documentation becomes critical. If the employee was in a valid waiting period, correctly classified under a look-back period, or if you used an affordability safe harbor, you need the records to prove it. A simple coding error on a 1095-C form can trigger this letter, which is why having an expert advocate in your corner is so valuable.

Step 2: Responding and Finalizing with Notice 220J

After you submit your response to Letter 226J, the IRS will review your documentation and issue a follow-up. If they agree with your evidence, you may receive a letter stating the case is closed with no penalty. If they don’t, or if a penalty is still owed, you’ll receive Notice 220J. This is the final notice that confirms the penalty amount and demands payment. It’s important to remember that the IRS calculates these penalties on a monthly basis, even though the figures are often discussed as annual amounts. One mistake in a single month for a single employee can start this entire process, highlighting why consistent, year-round compliance management is so important.

How Penalties Are Applied to Companies with Common Ownership

If you own or operate multiple businesses, you need to be aware of the ACA’s controlled group rules. The IRS doesn’t just look at a single company’s employee count in isolation. If you have related entities with common ownership, they may be treated as a single employer for the purpose of determining ALE status. This means a small business with 20 employees could be pulled into the employer mandate if it’s linked to another company under the same ownership. This is a common and costly blind spot for many entrepreneurs and investors. Properly analyzing your corporate structure is a foundational step in ACA compliance, especially for large groups or those with complex ownership.

Step 6: Get Your Forms 1094-C and 1095-C Ready

ACA reporting is where many compliance problems surface. Forms 1095-C report offer and coverage information for individual employees. Form 1094-C transmits employer-level information to the IRS. The codes on Form 1095-C need to match the employer’s actual offer of coverage, affordability position, employee status, and enrollment records.

For 2026 filing activity related to the 2025 coverage year, electronic filing with the IRS is generally due March 31, 2026. Employers should confirm the applicable deadline each year because calendars, IRS guidance, and furnishing rules can change. Also note that many employers are now required to file electronically because of reduced electronic filing thresholds.

Before filing, review these items:

Employee name and Social Security number accuracy.
Months of full-time status and offer of coverage.
Line 14 offer codes and Line 16 safe harbor or relief codes.
Lowest-cost self-only employee contribution by month.
Self-funded coverage months, if applicable.
Controlled group and aggregated ALE member reporting.

Reporting is not just a tax form exercise. It is the evidence trail that supports your compliance position. If a Letter 226J arrives, the employer’s response will depend heavily on whether these records are accurate.

Step 7: Create Your Washington ACA Compliance Calendar

Washington employers often manage ACA compliance alongside renewals, open enrollment, PFML, WA Cares, COBRA, carrier rules, and employee communication needs. A simple annual calendar helps prevent ACA tasks from getting buried.

January to March: Finalize prior-year ACA reporting, review Forms 1094-C and 1095-C, and correct employee data issues.
April to June: Evaluate prior-year workforce counts to confirm ALE status for the next year.
July to September: Model renewal options, affordability, minimum value, contribution strategy, and employee class rules.
October to December: Complete open enrollment, document offers of coverage, update payroll deductions, and confirm ACA tracking setup for the new year.

This calendar should be shared by HR, payroll, finance, and the benefits advisor. The ACA touches all four functions. HR usually controls eligibility and employee communication. Payroll controls hours, wages, deductions, and employee data. Finance cares about penalty exposure and contribution budgeting. The advisor helps connect plan design with compliance requirements.

If your team is planning a 2026 renewal, ask WHIA to review your ACA affordability and reporting risk before rates and contribution tiers are finalized.

Common ACA Compliance Mistakes (And How to Avoid Them)

Most ACA problems are not caused by employers ignoring the law. They are caused by gaps between systems, vendors, and timing. Watch for these common mistakes:

Using headcount instead of full-time equivalent calculations. Part-time hours can push an employer into ALE status.
Testing affordability too late. Waiting until reporting season leaves little room to adjust contributions.
Assuming the carrier handles everything. Fully insured carriers may help with coverage data, but ALE reporting responsibility still matters.
Missing variable-hour employees. Measurement periods need to be documented and consistently applied.
Ignoring controlled group rules. Related businesses may need to be counted together.
Using stale affordability percentages. The percentage changes by year. For 2026 plan years, use 9.96%.
Not reconciling payroll deductions to plan offers. A contribution spreadsheet is not enough if payroll deductions tell a different story.

Your 2026 ACA Compliance Checklist for Washington

Use this checklist before renewal and again before ACA reporting:

Calculate ALE status using 2025 full-time and full-time equivalent employee counts.
Review controlled group relationships, acquisitions, and related entities.
Confirm your full-time employee identification method.
Document measurement, administrative, and stability periods if using the look-back method.
Confirm minimum essential coverage is offered to at least 95% of full-time employees and dependent children.
Test the lowest-cost self-only minimum value plan against the 2026 affordability percentage of 9.96%.
Select and document the affordability safe harbor used for each employee group.
Confirm the plan provides minimum value.
Reconcile HRIS, payroll, carrier, and ACA vendor data monthly.
Review Forms 1095-C for offer codes, safe harbor codes, employee contributions, and coverage months.
File Forms 1094-C and 1095-C on time and retain supporting records.
Keep a response plan ready in case the IRS issues Letter 226J.

Turn ACA Compliance Into a Winning Benefits Strategy

ACA compliance should not be separated from benefits strategy. The same decisions that affect penalties also affect recruitment, retention, renewal costs, employee satisfaction, and payroll administration. A bare-minimum plan might reduce employer cost on paper but create affordability, value, or employee relations problems. A richer plan might support hiring but still needs contribution tiers that pass the ACA test.

Washington Health Insurance Agency works with Washington businesses that want more than a renewal spreadsheet. WHIA combines carrier market analysis, compliance awareness, employee benefits strategy, and year-round account support. For employers crossing the 50-employee line, that can mean identifying the right funding model, testing contribution scenarios, coordinating HR and payroll data, and helping leadership understand the risk before decisions are locked in.

If your company is growing, moving between small group and large group options, or evaluating self-funded or level-funded coverage, also see WHIA’s guide to group health insurance in Washington State. The plan structure and ACA strategy should be reviewed together.

Partnering with a Broker for Strategic Guidance

How WHIA Helps Washington Businesses

Trying to manage the ACA employer mandate on your own can feel like a second full-time job, leaving you frustrated and feeling like you don’t have control over your benefits or costs. For Washington businesses approaching the 50-employee threshold, partnering with a knowledgeable broker provides essential support and turns a compliance burden into a strategic asset. Instead of reacting to problems, you can get ahead of them. At WHIA, we act as a dedicated extension of your team, helping you understand your obligations as an Applicable Large Employer (ALE) by accurately calculating your full-time equivalent employees. This proactive approach is crucial, as a miscalculation can lead to unexpected penalties and administrative headaches.

Our guidance extends to the critical details of your plan design. We help you test for affordability, ensuring your employee contributions for the lowest-cost plan do not exceed the federal percentage, which is 9.96% for 2026 plan years. We also help you build a practical, monthly reconciliation process to compare payroll, HR, and carrier data, which minimizes risk and keeps your records clean. Before your renewal or reporting deadlines, we can perform a full compliance review to catch potential issues before they become costly mistakes. By partnering with WHIA, you can align your benefits offerings with legal requirements while building a stronger, more competitive employee benefits strategy for your large group.

Frequently Asked Questions About ACA Employer Mandate 2026 Compliance

Does the ACA employer mandate apply if you have exactly 50 employees?

It can. The threshold is based on an average of 50 or more full-time employees, including full-time equivalents, during the prior calendar year. A company with fewer than 50 actual full-time employees may still be an ALE if part-time employee hours create enough full-time equivalents.

What is the 2026 ACA affordability percentage?

For plan years beginning in 2026, the required contribution percentage is 9.96%. Employers should apply the correct safe harbor and test the employee’s share of the lowest-cost self-only plan that provides minimum value.

How much are the ACA employer mandate penalties for 2026?

For 2026, the adjusted 4980H(a) amount is $3,340 and the adjusted 4980H(b) amount is $5,010. The actual exposure depends on the months involved, employee count, offers of coverage, affordability, minimum value, and whether a full-time employee receives a premium tax credit.

Do Washington employers have different ACA rules?

The ACA employer mandate is federal, so the core ALE, affordability, minimum value, and reporting rules are not Washington-specific. However, Washington employers still need to coordinate ACA compliance with state benefits requirements, carrier rules, workforce patterns, and renewal strategy.

Who should own ACA compliance in your company?

ACA compliance should be shared by HR, payroll, finance, and the benefits advisor. HR manages eligibility and employee communication. Payroll supplies hours, wages, and deduction data. Finance evaluates cost and penalty exposure. The advisor helps connect plan design with compliance requirements.

Your Next Steps for 2026 ACA Compliance

The ACA employer mandate is manageable when it is treated as an annual operating process, not a last-minute filing project. For 2026, Washington employers should confirm ALE status, apply the 9.96% affordability threshold, document minimum value, review penalty exposure, and prepare Forms 1094-C and 1095-C with clean data.

Want to know whether your 2026 benefits strategy is ACA-ready? Schedule an ACA compliance review with Washington Health Insurance Agency.

This article is for general educational purposes and should not be treated as legal or tax advice. Employers should consult qualified legal, tax, payroll, and benefits professionals for guidance on their specific facts.

Key Takeaways

Confirm Your ALE Status Annually: Your 2026 compliance obligations are based on your 2025 workforce size. Accurately calculate your full-time employees and full-time equivalents to determine if you are an Applicable Large Employer (ALE), because having fewer than 50 full-time staff does not automatically exempt you.
Use the Correct 2026 Affordability Rate: For 2026 plan years, your health coverage is considered affordable only if the employee’s contribution for the lowest-cost, self-only plan is no more than 9.96% of their income, as tested by a valid safe harbor. Using an old percentage is a frequent and expensive error.
Keep Meticulous Records to Mitigate Penalty Risk: The 2026 penalties are significant, with fines reaching $3,340 or $5,010 per employee depending on the specific failure. Consistent, accurate documentation of employee hours, coverage offers, and payroll data is your strongest defense against an IRS penalty notice.