How Employers Use Data for Self-Funded Health Plans

Healthcare cost volatility is accelerating. Medical inflation, specialty pharmacy growth, and increasing large claims are fundamentally changing employer risk exposure.  

Health plan funding decisions are more critical than ever. While many employers assume self-funding introduces risk, a data-driven approach supported by actuarial modeling can provide greater transparency, control, and long-term financial alignment than traditional fully insured plans. 

This article outlines why your funding strategy matters, what drives accurate modeling, common employer mistakes, and how analytics can support confident decision-making. 

As these pressures continue to build, employers are being pushed to rethink how they approach health plan funding decisions.

Why Health Plan Funding Decisions Matter for Employers

Employers are navigating multiple cost pressures at the same time. 

According to OneDigital’s National Trend Guidance and broader market data, group health plan costs are projected to increase between 8 percent and 10 percent in 2026, significantly above historical trend levels. 

Specialty drugs now account for more than 50 percent of total pharmacy spend while representing a small percentage of prescriptions, based on OneDigital’s National Trend Guidance. Annual specialty trend continues to outpace core medical costs.

Claims exceeding one million dollars are no longer rare. Their growing frequency requires more advanced modeling and risk planning. 

In fully insured plans, these risks are embedded in renewal pricing. In self-funded plans, they must be modeled, stress tested and aligned with organizational risk tolerance. 

Stop-loss premiums are rising and underwriting is becoming more aggressive, including higher attachment points and increased use of lasers. 

Employee contributions have increased significantly over time, creating affordability concerns and limiting flexibility in plan design changes. 

Understanding these pressures is only the first step. The next challenge is determining how to model and respond to them effectively.

What Drives Accurate Self-Funded Health Plan Strategy 

Reliable projections require more than applying a general trend. They require disciplined actuarial modeling based on employer-specific data. 

A comprehensive approach incorporates multiple data inputs to create a more accurate and complete view of expected performance.

Key inputs include:

• Claims trend analysis adjusted for completion factors and large claim normalization  
• Demographic changes and utilization patterns  
• Specialty pharmacy pipeline and emerging therapies  
• Stop-loss attachment levels and underwriting conditions  
• Contribution modeling and affordability sensitivity  
• Scenario-based forecasting across multiple outcomes  

Advanced actuarial methods such as experience studies and probability modeling help quantify expected performance and downside risk. 

As a result, accurate projections reflect:

• Claims variability  
• Large claimant risk  
• Stop-loss market conditions  

This is what separates theoretical estimates from actionable strategy.

Despite having access to more data than ever, many employers still struggle to apply these insights effectively.

Common Mistakes Employers Make in Funding Strategy 

Many organizations continue to rely on outdated approaches when evaluating funding decisions. 

These gaps often lead to misaligned expectations, missed cost drivers, and less effective long-term planning.

Common pitfalls include:

• Relying only on renewal trend percentages  
• Ignoring demographic and utilization changes  
• Underestimating specialty pharmacy exposure  
• Failing to model best and worst case scenarios  
• Treating projections as static rather than dynamic  

Self-funding is not simply a cost savings decision. It is a strategy centered on risk management, transparency, and long-term financial alignment. 

To move beyond these challenges, organizations need a more structured and forward-looking approach to strategy.

Using Data to Build a Long-Term Health Plan Strategy

Transparency allows leadership to understand what is driving costs and how financial outcomes may vary over time. A structured, multi-year approach is essential for turning that visibility into action and evaluating funding strategy effectively. 

A Five-Year Strategic Roadmap helps employers apply data insights to long-term planning, aligning funding approach, plan design, pharmacy strategy, and cost trajectory with broader financial and workforce goals. 

This approach provides a comprehensive view across key areas, including:

• Funding approach  
• Plan design optimization  
• Pharmacy strategy  
• Contribution alignment  
• Long-term cost trajectory  

By modeling performance across multiple years, employers can better understand trends and make more informed decisions, including the ability to:

• Understand cumulative savings potential  
• Evaluate volatility over time  
• Align benefits strategy with financial objectives  

This approach shifts the focus from a single renewal cycle to long-term cost control and strategic flexibility. Through solutions like OneDigital’s Impact Studio, employers can bring this multi-year perspective to life with a Five-Year Strategic Roadmap that connects data, strategy, and actionable planning. 

Once a long-term strategy is defined, the focus shifts to execution and ongoing evaluation.

Turning Insights Into Action With Data-Driven Planning

After establishing a long-term strategy, employers must translate that direction into actionable insights that guide real funding decisions. This requires a deeper level of actuarial analysis to evaluate risk, validate assumptions, and ensure the strategy aligns with both financial goals and workforce needs.

What Is a Self-Insured Feasibility Analysis

A Self-Insured Feasibility Analysis provides a structured evaluation of an employer’s claims data, risk exposure, and funding readiness to support more informed decision-making.

• Claims experience  
• Large claim probability  
• Stop-loss pricing  
• Alignment with organizational risk tolerance  

Any employer with access to claims data should periodically conduct this analysis. Even if remaining fully insured, it provides: 

• Better negotiation leverage  
• Clear understanding of financial trade-offs  
• Stronger strategic planning foundation  

A SIFA is not just a transition tool, it’s a strategic diagnostic. 

How Data Changes Funding Strategy Decisions

When data is used effectively, the conversation shifts. Instead of focusing on renewal increases, organizations evaluate: 

• Which funding model aligns with long-term goals  
• How to manage risk proactively  
• How to optimize benefits strategy  

What a Data-Driven Strategy Enables

A data-driven approach does more than improve visibility. It helps employers translate insights into coordinated, cross-functional decisions that strengthen both financial performance and workforce outcomes.

• Alignment between finance and HR  
• Multi-year cost planning  
• Defined risk mitigation strategies  
• Strategic network design  
• Optimized plan design and contributions  
• Integration of targeted solutions  

Scenario planning allows employers to prepare for variability and make more informed decisions under different cost and risk conditions.

• Base case projections  
• Best case outcomes  
• Stress testing for volatility  
• Specialty pharmacy trends  
• Large claimant risk  

Organizations that model these variables are positioned to lead, not simply react. 

Employers should take a more structured and proactive approach to collaborating with their broker to build a multi-year strategic funding roadmap. 

Recommended Next Steps for Employers

To move from insight to action, employers should focus on a consistent, structured approach to evaluating and refining their funding strategy over time.

• Conduct an annual funding strategy analysis  
• Perform a Self-Insured Feasibility Analysis when data is available  
• Evaluate specialty pharmacy and large claim exposure  
• Review workforce demographics annually  
• Align strategy with a multi-year roadmap  

Healthcare funding decisions should not be limited to annual renewals, but part of your ongoing strategic plan with your employee benefits team. 

In an environment defined by rising healthcare costs and increasing complexity, data-driven strategy provides clarity. Clarity enables more confident decisions, better outcomes, and stronger financial alignment. 

Build Your 5-Year Health Plan Strategy 

Healthcare costs are rising, and funding decisions require greater clarity, control, and long-term planning. A data-driven approach helps you understand what is driving spend and how to align your strategy with financial and workforce goals. 

Talk with a OneDigital Benefits Analytics Expert to evaluate your current funding approach and build your 5-Year Strategic Roadmap to improve cost control, reduce volatility, and strengthen your benefits strategy.