Self-Funded vs. Level-Funded vs. Fully Insured Health Plans: Which Is Right for Your Business in 2025?

Explore the key differences between self-funded, level-funded, and fully insured plans and learn how to choose the best option for your business’s size, goals, and budget.

Table of contents

1. Health plan models at a glance: Where employers stand today
2. What is a fully insured health plan?
3. What is a self-funded health plan?
4. What is a level-funded health plan?
5. At a glance: Compare self-funded, level-funded, and fully insured plans
6. How pharmacy benefits help control healthcare costs
7. How to choose the best health plan model for your business
8. Final thoughts: Which health plan model is best for your business?
9. Key takeaways

Health plan models at a glance: Where employers stand today

Healthcare costs continue to rise, placing significant pressure on businesses of all sizes. For employers, offering affordable, high-quality health benefits is more challenging and more critical than ever. Choosing the right health plan funding model isn’t just a financial decision; it’s a strategic one that can directly impact a company’s bottom line, employee satisfaction, and long-term growth.

Today, most employers are evaluating three main types of health plans: fully insured, level-funded, and self-funded. Each option comes with different levels of risk, flexibility, and cost control. Understanding how they work is the first step in selecting the best fit for your organization’s needs.

The trend is clear: more businesses are moving toward flexible funding. According to an Employer Health Benefits Survey, 65% of covered workers, including 18% at small firms and 83% at large firms, are enrolled in self-funded plans.¹ This growing shift shows how employers are seeking greater control over costs, better transparency, and more customized benefit solutions.

This guide explains the differences between fully insured, level-funded, and self-funded health plans and how Trinity’s healthcare solutions can help you save money and deliver a better healthcare experience for employees, whichever model you choose.

What is a fully insured health plan?

A fully insured health plan is the most traditional way for employers to provide health coverage. With this model, the employer pays a fixed monthly premium to an insurance carrier. In return, the insurance company assumes the financial risk for the employees’ healthcare claims. Whether employees use a lot of medical services or very few, the monthly premium stays the same.

The insurance company handles all claims, administration, and compliance. This setup is generally simple for employers because the insurer manages most responsibilities.

Pros of fully insured plans:

• Predictable costs with fixed monthly premiums.
• Simple administration, with the insurance carrier handling claims and compliance.

Cons of fully insured plans:

• Less flexibility in plan design and benefit customization.
• Higher premiums, especially as healthcare costs rise year over year.
• Employers don’t benefit from lower claims since the insurer keeps any savings.

Ideal for:

Very small businesses that prefer financial predictability and are not comfortable taking on any claims risk.

What is a self-funded health plan?

A self-funded health plan (also called self-insured) allows an employer to take full control of their healthcare costs. Instead of paying fixed premiums to an insurance company, the employer directly funds their employees’ healthcare claims. This means the company assumes the financial risk but also has the opportunity to save significantly if claims are lower than expected.

In a self-funded model, employers typically work with a Third-Party Administrator (TPA) to handle claims processing, compliance, and administrative tasks. To protect against unexpectedly high claims, employers also purchase stop-loss insurance, which acts as financial protection for large or catastrophic claims.

Pros of self-funded plans:

• Significant cost savings potential when claims are lower than expected.
• High flexibility to design customized health plans that fit the unique needs of the business and employees.
• Full access to claims data, allowing businesses to monitor healthcare spending, identify trends, and make data-driven decisions.

Cons of self-funded plans:

• Higher financial risk, especially if claims are higher than anticipated.
• More complex administration, requiring a TPA to handle day-to-day operations.
• Must purchase stop-loss insurance for protection against large or unexpected claims.

Ideal for:

Mid to large-sized businesses that want greater control, transparency, and flexibility over their healthcare benefits and are comfortable managing some financial risk.

What is a level-funded health plan?

A level-funded health plan is a hybrid between a fully insured and a self-funded plan. It offers the predictability of fixed monthly payments, like a fully insured plan, but with the potential cost savings of self-funding.

With level-funding, employers pay a set monthly amount that covers three components: the estimated cost of claims, administrative fees, and stop-loss insurance (which protects against large or unexpected claims). If the company’s claims are lower than expected, they may receive a refund or credit at the end of the year. If claims are higher, the stop-loss insurance kicks in to limit the financial risk.

This model gives employers more control and transparency over their healthcare costs while maintaining stable monthly payments.

Pros of level-funded plans:

• Predictable monthly costs, similar to fully insured plans.
• Potential refund if claims are lower than projected.
• More transparency into claims and spending compared to fully insured models.

Cons of level-funded plans:

• Some financial risk, although less than a fully self-funded plan.
• Limited flexibility compared to full self-funding, depending on the carrier or administrator.

Ideal for:

Small to mid-sized businesses looking for cost savings, claims transparency, and some level of protection from large claim risks. It’s often a stepping stone toward fully self-funded models.

At a glance: Compare self-funded, level-funded, and fully insured plans

Feature

Fully Insured

Level-Funded

Self-Funded

Monthly Cost Stability

✅ High – Fixed premiums

✅ Moderate – Fixed payments with refund potential

✅ Moderate – Varies based on claims

Customization

❌ Low

✅ Medium

✅ High

Claims Data Access

❌ None

✅ Limited

✅ Full

Potential for Savings

❌ Minimal

✅ Possible

✅ High

PBM Flexibility

❌ Minimal – Carrier controls it

✅ Moderate – Some flexibility

✅ High – Full control, choose partners like Intercept Rx

Best For

Small businesses avoiding risk

Small to mid-sized businesses

Mid to large businesses seeking control and savings

Not sure where your company fits? Learn how Trinity helps employers transition from fully insured to smarter healthcare benefit models.

How pharmacy benefits help control healthcare costs

No matter which health plan model a business chooses, fully insured, level-funded, or self-funded, pharmacy benefits are one of the biggest drivers of overall healthcare costs. In fact, pharmacy expenses typically represent 20% to 30% of total healthcare spending for employers.

Without the right pharmacy benefit strategy, even companies with the best health plan structure can struggle with rising costs, limited transparency, and poor employee satisfaction.

This is where a Trinity makes a measurable difference. Through its value-added service, Intercept Rx, Trinity helps employers lower pharmacy costs while improving the member experience. Whether your company is using a level-funded or self-funded plan, pharmacy benefits are a game-changer.

Key benefits of the Rx Optimization Program:

• $0 copays on most generic and many brand-name medications.
• Free home delivery of prescriptions, offering convenience for employees.
• Member advocacy and support, ensuring that employees get the medications they need without unnecessary hassle or surprise costs.
• Total transparency into drug pricing and claims, helping employers control spending while offering competitive benefits.

Better pharmacy benefits don’t just reduce costs, they also help employers improve retention, boost satisfaction, and support overall productivity. In fact, offering benefits that truly meet employee needs plays a critical role in creating a positive workplace culture.

Related Resource: Learn how a strong benefits package directly impacts productivity and retention in this guide about how company culture drives productivity and retention.

How to choose the best health plan model for your business

Selecting the right funding model in 2025 isn’t one-size-fits-all. The best choice depends on company size, budget, risk tolerance, and long-term goals.

• Company size: Larger employers often benefit most from self-funded models, while small to mid-sized businesses may prefer the balance of level-funding.
• Risk tolerance: Fully insured plans carry the least risk but also the least savings potential. Level-funded models balance predictability and savings, while self-funded models carry higher risk but also the greatest opportunity for rewards.
• Budget and cash flow: Self-funded plans require the ability to manage fluctuating claims, while fully insured and level-funded offer more predictable costs.
• Control and flexibility: If customizing your plan and managing pharmacy costs are priorities, level-funded or self-funded models provide far more control.
• Long-term goals: Employers focused on sustained savings and employee-focused benefits often transition toward self-funding over time.

Final thoughts: Which health plan model is best for your business?

There’s no single “best” health plan. Each model has advantages and trade-offs depending on your business’s size, strategy, and risk profile.

What’s clear is that businesses looking to take control of healthcare costs and offer competitive benefits often find the most value in level-funded or self-funded plans. When paired with Trinity’s transparent, member-focused solutions, the impact is even greater, helping employers save money while supporting employee well-being.

Ready to see the difference? Request a free quote today and discover how much your business could save with Trinity’s smarter healthcare and pharmacy benefit solutions in 2025 and beyond.

Key takeaways

• Fully insured = Simple but expensive, with less flexibility.
• Level-funded = Balance of savings and stability for small to mid-sized businesses.
• Self-funded = Maximum control, transparency, and savings, but with higher risk.
• Pharmacy costs = 20–30% of total healthcare spend. A major driver of overall costs.
• Trinity includes the Intercept Rx’s Rx Optimization Program which offers $0 copays, free home delivery, and full transparency to help businesses lower costs and improve employee satisfaction.
• The right health plan + a strong healthcare partner = major savings and happier employees.

Footnote Markers:

¹ https://intercept.health/insights/blog/self-funded-vs-level-funded-vs-fully-insured-health-plans-which-is-right-for-your-business-in-2025/