ACA 2027: What Federal Contractors Should Review Before Open Enrollment

For plan years beginning in 2027, the ACA affordability percentage increases to 10.22%, up from 9.96% for 2026. For applicable large employers, the 2027 threshold allows a higher employee contribution for the lowest-cost self-only plan that provides minimum value. That plan may still meet the ACA affordability standard. 

That flexibility can help manage rising healthcare costs. Federal contractors can treat this as a planning opportunity. Health benefits remain an important part of recruitment, retention, labor-cost forecasting, and workforce continuity, especially in competitive markets for cleared, technical, field-service, healthcare, and skilled-trade talent. 

1. Confirm whether your organization is an ALE 

The ACA employer mandate generally applies to applicable large employers. These organizations average at least 50 full-time employees, including full-time-equivalent employees, during the prior calendar year. ALEs must offer eligible full-time employees and their dependents coverage that meets minimum-value and affordability requirements or may face employer shared-responsibility payments. 

2. Choose and document an affordability safe harbor

Safe harbor How it works Best fit for federal contractors Federal Poverty Line Bases affordability on the federal poverty line rather than employee-specific wages. For 2027 calendar-year plans in the contiguous United States and Washington, D.C., the monthly employee-only contribution threshold is $135.93. Useful when the organization wants one straightforward national contribution cap and strong administrative simplicity. Rate of Pay Tests affordability using an hourly employee’s lowest hourly rate multiplied by 130 hours per month, or a salaried employee’s monthly salary. Often practical for hourly, shift-based, field-service, security, facilities, construction, logistics, and other operational workforces. Form W-2 Tests affordability against Box 1 wages reported on the employee’s Form W-2. May work for more stable salaried workforces, but can be harder to manage when wages change, employees take unpaid leave, or pre-tax deductions reduce Box 1 income.

3. Test the employees most likely to fall below the threshold 

A higher affordability percentage does not eliminate risk. Errors often occur when employers use one premium assumption for a workforce that has different wage rates, locations, plan options, job classifications, or payroll schedules. 

Prioritize testing for: 

• Employees assigned to lower-paid contract roles 

• Hourly employees whose wages vary because of reduced schedules, leave, seasonal patterns, or assignment changes 

• Employees who move between task orders, cost centers, states, or locations with different plan options or contribution rates 

• New hires and rehires whose eligibility and coverage offers must be tracked carefully 

• Employees covered by collective-bargaining agreements or customer-specific benefit commitments 

• Remote workers whose work location may affect available plans and employee premiums 

4. Connect benefits decisions to contract pricing and retention 

The 2027 affordability percentage gives employers additional room to shift healthcare cost to employees while remaining within the ACA limit. However, the ACA threshold is a compliance floor, not necessarily a competitive benefits strategy. 

For example, an employer may satisfy the Federal Poverty Line safe harbor by pricing its lowest-cost self-only plan at or below $135.93 per month for eligible employees in the contiguous United States and Washington, D.C. Yet that amount may still be material for a lower-paid employee with transportation, caregiving, or other household expenses. Compliance does not automatically resolve retention risk. 

Larger employee premiums can affect: 

• Retention in hard-to-fill or cleared roles. 

• Recruitment for positions competing with commercial employers, state and local governments, or other contractors. 

• Employee morale among hourly and lower-wage workforces. 

• Overtime availability, absenteeism, and turnover costs. 

• Labor pricing, indirect-cost assumptions, and the ability to staff new awards or task orders. 

5. Validate system configuration before open enrollment 

A plan that is affordable on paper can still create compliance problems if the wrong premium is loaded into payroll or the lowest-cost qualifying plan is misidentified.  

Before 2027 open enrollment, validate: 

• The plan that will serve as the lowest-cost self-only, minimum-value option 

• Employee contribution rates by location, eligibility class, payroll frequency, and coverage tier 

• Eligibility rules for full-time, variable-hour, seasonal, and newly hired employees 

• ACA measurement, administrative, and stability periods where applicable 

• Payroll deductions, including pre-tax treatment and the timing of rate changes 

• 1094-C and 1095-C data feeds, codes, and ownership 

• Carrier, broker, TPA, payroll, and HRIS vendor responsibilities 

• Documentation supporting the selected safe harbor and affordability calculations 

6. Keep an audit-ready record 

The ACA affordability percentage is updated annually, and the applicable rate depends on when the plan year begins. Employers with non-calendar-year plans should apply the affordability percentage for the year in which that plan year starts. 

Maintain a concise file that identifies the selected safe harbor, applicable premium rates, relevant employee categories, calculation worksheets, plan documents, payroll configuration evidence, and vendor confirmations. This record will make future ACA reporting, internal reviews, and responses to employee questions more manageable.