If you employ people in Hawaii, there is a very good chance you are required to provide them with health insurance. Not because of the Affordable Care Act — because of a Hawaii law that has been on the books since 1974. The Prepaid Health Care Act (PHCA) made Hawaii the first state in the nation to mandate employer-provided health insurance, nearly 40 years before the ACA existed. It applies to employers of all sizes, kicks in after just four weeks of qualifying employment, and caps what you can charge employees at half the premium or 1.5% of their monthly wages, whichever is less. If you are running payroll in Hawaii and you have employees working 20 or more hours per week, this law applies to you.

Important: What PDS Does and Does Not Do PDS does not administer health insurance plan selection or enrollment. For choosing a PHCA-compliant health plan, work with a licensed Hawaii insurance broker. Once your plan is in place, PDS handles the payroll deductions — ensuring employee contributions stay within the 1.5% cap and are correctly withheld each pay period.

1. What the Prepaid Health Care Act Is

The Hawaii Prepaid Health Care Act was enacted in 1974, making Hawaii the first state in the country to require employers to provide health insurance to their employees. Hawaii did this in 1974, 36 years before the ACA became law in 2010 and long before any other state got close. Employers here have lived with it long enough that it's just part of how things work — but if you're coming from the mainland, it will surprise you.

The Disability Compensation Division of the Hawaii DLIR administers this law. Nearly all Hawaii employers are covered — the exemptions are narrow and most business owners don't qualify.

The goal is simple: make sure people working in Hawaii have health coverage. Hawaii beat the federal government to this by nearly 40 years. In some ways, the state requirements are stricter than what the ACA demands. Mainland employers setting up in Hawaii regularly underestimate this law.

2. Which Employees Qualify

According to the Hawaii DLIR, an employee becomes eligible for PHCA coverage when they: (1) work 20 or more hours per week for 4 consecutive weeks, AND (2) earn a monthly wage of at least 86.67 times the current Hawaii minimum hourly wage ($1,387 a month in 2026, at the $16.00 minimum wage). Both conditions must be met. Once triggered, the employer must provide coverage at the earliest date the health plan allows coverage to start (HRS 393-14).

What counts toward the 20-hour threshold and what doesn't matters a lot — here's how it breaks down:

  • Employees working 20+ hours per week: Eligible once they hit 4 consecutive weeks at that level. Coverage must start at the plan's earliest enrollment date after that. There is no extended waiting period.
  • Part-time employees under 20 hours per week: Exempt from PHCA. If an employee consistently works fewer than 20 hours per week, the mandate does not apply.
  • Independent contractors: Not covered. PHCA applies to employees only. However, if someone you classify as a contractor is actually an employee under Hawaii law, the PHCA obligation still applies — and misclassification can create significant liability.
Watch the threshold carefully. An employee who regularly works 18 hours per week is not covered. But if their hours creep up to 20+ for four consecutive weeks — even temporarily — the PHCA obligation is triggered. This is why accurate hour tracking through your payroll system is essential.

3. Coverage Requirements

The PHCA does not require you to offer a gold-plated health plan. But it does set minimum standards. The coverage you provide must include:

  • Hospital care: Inpatient hospital services, including at least 120 days of inpatient care each calendar year
  • Surgical care: Coverage for medically necessary surgical procedures
  • Medical care: Physician services, both inpatient and outpatient
  • Diagnostic care: Diagnostic services
  • Maternity care: Maternity benefits

The plan must meet the minimum benefit standards established by the DLIR. In practice, most standard health plans offered by Hawaii's major carriers — HMSA, Kaiser Permanente, and others — meet or exceed these minimums. If you are working with a licensed Hawaii insurance broker, they will steer you toward a qualifying plan.

A few details on coverage worth knowing:

  • Coverage must begin when eligibility is triggered. Once an employee hits the 20-hours-per-week-for-4-consecutive-weeks threshold, you need to enroll them. There is no 60-day or 90-day waiting period under PHCA.
  • The plan must be approved by the DLIR. Your insurer handles this, but it is worth confirming that your plan is on the approved list.
  • Coverage is for the employee. PHCA mandates coverage for the employee, not for dependents. Many employers choose to offer dependent coverage as well, but it is not required by the law.

4. The 1.5% Employee Contribution Cap

The cost-sharing rule trips up a lot of employers. The rule is straightforward once you know it:

Employers must pay at least half the premium, and may charge employees no more than 1.5% of their monthly wages toward it.

The employee pays the smaller of half the premium or 1.5% of monthly wages. The employer pays everything else. The employee's share is capped regardless of what the actual premium costs.

How It Works in Practice

Suppose an employee earns $4,000 per month gross. Their maximum PHCA contribution is:

  • $4,000 × 1.5% = $60 per month

If the monthly health insurance premium is $500, the employer pays at least $440 and the employee pays no more than $60. If the premium is $700, the employer pays at least $640. If the premium were only $100, the employee could be charged no more than $50, which is half the premium. The employee's share is always capped at half the premium or 1.5% of wages, whichever is less.

Many Hawaii employers cover 100% of the employee's premium. While the law only requires employers to pay at least half the premium plus anything above the employee's 1.5% cap, many businesses pay the full premium as a competitive benefit. In Hawaii's tight labor market, covering the full cost of health insurance is a meaningful recruiting and retention tool.

Very small employers can get help with the cost. If you have fewer than eight PHCA-covered employees, your share of their premiums is more than 1.5% of their total wages, and that excess is more than 5% of the business's pre-tax income, the state's Premium Supplementation Fund can pay the excess (HRS 393-45).

From a payroll perspective, the 1.5% cap means you need to calculate the maximum allowable deduction for each employee each pay period and ensure you are not over-withholding. PDS handles this calculation automatically — once your health plan premiums are set up, the system ensures deductions stay within the legal cap.

5. How PHCA Relates to the ACA

Hawaii's PHCA and the federal ACA overlap, but they're not the same law. Every Hawaii employer needs to understand both. The short version: they apply simultaneously, and Hawaii's ACA waiver doesn't get you out of either one.

Where PHCA Is More Expansive Than ACA

  • Lower hour threshold: PHCA covers employees working 20+ hours per week. The ACA's employer mandate applies to employees averaging 30+ hours per week. That means employees working 20-29 hours per week are covered by PHCA but may not be covered by the ACA's employer mandate.
  • Faster eligibility trigger: PHCA eligibility kicks in after 4 consecutive weeks. The ACA allows employers to use measurement periods and waiting periods that can delay coverage for months.
  • No employer size threshold: PHCA applies to all employers regardless of size. The ACA's employer shared responsibility provisions (the "employer mandate") only apply to applicable large employers with 50 or more full-time equivalent employees.

Hawaii's ACA Waiver Covers the Small-Business Exchange Only

Hawaii holds a federal Section 1332 waiver that lets the PHCA stand in place of the ACA's Small Business Health Options Program (SHOP) exchange. The current waiver runs through plan year 2026, and the state has asked to extend it through 2031. The waiver does not exempt any employer from the ACA employer mandate or from filing Forms 1094-C and 1095-C. Because Hawaii has no SHOP exchange, small employers here can't claim the federal Small Business Health Care Tax Credit. The federal savings go to the state's Premium Supplementation Fund instead.

Employers with 50+ FTEs: Comply with Both

If your business has 50 or more full-time equivalent employees, you must comply with both the PHCA and the ACA's employer shared responsibility provisions. This means:

  • Providing PHCA-compliant coverage to all employees working 20+ hours per week for 4 consecutive weeks
  • Meeting ACA requirements for employees averaging 30+ hours per week
  • Filing ACA information returns (Forms 1094-C and 1095-C) with the IRS
PDS and ACA compliance: For employers with 50+ full-time equivalent employees, PDS handles 1094-C and 1095-C preparation and filing as part of our payroll services. This ensures you meet your ACA reporting obligations alongside your PHCA payroll deduction requirements.

6. Exemptions

While the PHCA applies broadly, there are specific exemptions. Not every worker in your organization will require PHCA coverage:

  • Employees working fewer than 20 hours per week: If an employee consistently works under 20 hours per week, they are not eligible for PHCA coverage. However, you must track hours carefully — once the 20-hour threshold is crossed for 4 consecutive weeks, the obligation is triggered.
  • Seasonal agricultural workers: Seasonal agricultural employment is excluded. The exclusion does not apply broadly to all temporary or short-term workers. If you hire seasonal employees, review the DLIR guidelines or consult with a benefits advisor to determine whether the exemption applies to your situation.
  • Employees with other qualifying coverage: An employee can claim an exemption if they are covered as a dependent under a qualified health plan (for example, a spouse's employer plan), or by Medicare, Medicaid, or military dependent or retiree coverage, or by public assistance or a state medical assistance plan. Followers of religious groups that rely on prayer for healing can also claim one. The employee claims it on Form HC-5, and it must be renewed every December 31. You keep the original and give the employee a copy. You cannot simply assume an employee is covered elsewhere, and you may not pressure an employee to waive coverage.
  • Government employees: Federal, state, and county government employees are excluded from the PHCA.
  • Insurance and real estate salespeople paid solely by commission: This narrow exclusion applies to insurance agents and real estate salespeople who receive no salary or wages, only commissions.
  • Close family: Someone working for their own spouse, son, or daughter, and a child under 21 working for a parent, are excluded.
Do not assume exemptions without verification. The most common mistake employers make with PHCA exemptions is assuming an employee is covered under a spouse's plan without proper documentation. If you claim an exemption without a valid HC-5 and the employee is later found to have been uninsured, you face the daily penalty for the entire period of non-compliance, plus repayment of any benefits the state paid on that employee's behalf.

7. Penalties for Non-Compliance

Hawaii takes the Prepaid Health Care Act seriously. The DLIR actively enforces the law, and violations are investigated. If you fail to provide required coverage, the consequences can be substantial:

  • Daily penalty: An employer who fails to provide required coverage owes a penalty of $25 or $1 per employee for every day the failure continues, whichever is greater (HRS 393-33). If the default lasts 30 days, a court can bar you from doing business anywhere in Hawaii until you comply.
  • Other fines: Willfully violating other PHCA rules can bring a fine of up to $200 per violation. The amounts add up quickly when several employees are affected.
  • Employee complaints trigger investigations: Employees who believe they should be receiving health coverage can file complaints with the DLIR. These complaints are investigated, and if the DLIR finds a violation, enforcement follows.
  • Medical expense liability: If an employee who should have been covered can't get health care benefits because you were out of compliance, the state's Premium Supplementation Fund can pay those benefits and then recover the cost from you (HRS 393-48). This is where PHCA violations can become truly expensive.

The practical takeaway: it is far cheaper to comply with the PHCA than to deal with the consequences of non-compliance. A single uninsured employee who needs hospitalization can create liability that dwarfs years of premium payments.

8. How It Works in Practice

Understanding the law is one thing. Implementing it correctly within your payroll and HR processes is another. Many Hawaii businesses work with a local Hawaii payroll service to keep PHCA threshold tracking, deductions, and compliance automated. Here is how PHCA compliance works in the day-to-day operation of your business:

Track Employee Hours Carefully

Your payroll system needs to accurately track hours for every employee. This is the foundation of PHCA compliance, because the 20-hours-per-week-for-4-consecutive-weeks threshold is what triggers the obligation. If you are not tracking hours accurately, you cannot identify when eligibility is reached.

Identify When the Threshold Is Met

Monitor for employees who are approaching or have crossed the 20-hour/4-week threshold. This is especially important for part-time employees whose hours may fluctuate. An employee who normally works 18 hours per week but picks up extra shifts for a month may trigger eligibility.

Enroll Eligible Employees Promptly

Once the threshold is met, enroll the employee in your health plan without delay. Unlike the ACA, which allows for measurement periods and administrative delays, PHCA coverage should begin when the eligibility trigger is hit. Work with your insurance broker and carrier to ensure enrollment is processed quickly.

Manage Payroll Deductions Within the 1.5% Cap

Set up payroll deductions so that the employee's share of the premium does not exceed half the premium or 1.5% of their monthly wages, whichever is less. The deduction amount will vary based on each employee's pay rate, so this needs to be calculated on an employee-by-employee basis. PDS handles this automatically — once the premium amounts are configured, the system calculates the correct deduction for each employee each pay period.

Maintain Documentation

Keep records of enrollment dates, premium amounts, employee contributions, and any exemption documentation. If the DLIR investigates, you need to be able to demonstrate that you complied with the law for every eligible employee.

Remember: PDS handles the payroll side of PHCA compliance. We ensure employee deductions are correctly calculated within the 1.5% cap and properly withheld each pay period. For plan selection, enrollment, and carrier management, work with a licensed Hawaii insurance broker. For ACA reporting (1094-C and 1095-C) for employers with 50+ FTEs, PDS handles that as well.

Let PDS Handle the Payroll Side of PHCA Compliance

Pacific Data Services manages payroll deductions, tax deposits, W-2s, and ACA 1095 filings for Hawaii employers. Local Honolulu team, no long-term contracts, serving Hawaii since 1969.

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Or contact Pacific Data Services directly — (808) 521-1813

Sources

EB
Eric Bennet
Owner, Pacific Data Services

Eric has been with Pacific Data Services since 1984. Founded by his father Phil Bennet in 1969, PDS has served Hawaii employers for 55+ years as a full-service payroll and bookkeeping firm.