How Self-Funded Health Plans Work for Businesses

Discover how businesses take direct control of their employee health benefits, managing costs and customization with a self-funded approach.

By Garret Merkley · Explainer · Jun 13, 2026

Branched from Why Employers Are Choosing Direct Primary Care for Employee Benefits

Quick take

Self-funded health plans mean an employer pays employee medical claims directly, rather than paying fixed premiums to an insurer.
Businesses often partner with a Third-Party Administrator (TPA) to manage claims processing and network access.
Stop-loss insurance is crucial for self-funded plans, protecting employers from unexpectedly high or catastrophic claims.
This approach offers greater flexibility in plan design and potential cost savings, but also carries more financial risk.

A self-funded health plan, also known as a self-insured plan, is an arrangement where an employer directly pays for their employees' healthcare claims out of their own assets, instead of paying a fixed premium to a health insurance company. The employer assumes the financial risk for providing healthcare benefits.

Taking on the Risk (and Reward)

In a traditional, fully-insured plan, your business pays a set premium to an insurance company, which then takes on all the financial risk for employee claims. With a self-funded plan, your company effectively becomes its own insurer. You pay for each doctor's visit, prescription, and hospital stay as they occur. The key advantage here is that if claims are lower than expected, your business keeps the savings. Conversely, if claims are higher, your business bears that additional cost.

The Role of a Third-Party Administrator (TPA)

While the employer takes on the financial risk, most self-funded businesses don't handle the administrative burden themselves. This is where a Third-Party Administrator (TPA) comes in. A TPA is an independent company that handles all the day-to-day operations of the health plan, including:

Processing claims from employees and providers.
Providing access to a network of doctors and hospitals.
Managing customer service for employees regarding their benefits.
Negotiating prices with providers.
Ensuring compliance with healthcare regulations like ERISA.

Mitigating Risk with Stop-Loss Insurance

One of the biggest concerns for businesses considering self-funding is the potential for catastrophic claims – a few very expensive illnesses or accidents that could financially cripple the company. To protect against this, self-funded employers purchase stop-loss insurance. This insurance isn't for the employees; it's for the employer. It kicks in when claims exceed a predetermined amount, either for an individual employee (specific stop-loss) or for the entire group (aggregate stop-loss). This caps the employer's maximum financial exposure.

Self-funded plans are particularly appealing to businesses, especially those with a stable employee base, because they offer greater control over plan design and potential cost savings. You can tailor benefits to your employees' specific needs, avoid state-mandated benefits that may not be relevant to your workforce, and gain access to detailed claims data to identify trends and implement wellness programs. This approach can lead to significant savings when claims are low, as you're not paying for the insurer's profit margin, administrative costs, or risk charges. However, it also requires a comfort with assuming more financial risk and a commitment to active management of the health plan.

Is self-funding only for large companies?

While historically more common among larger companies (200+ employees) due to their ability to absorb risk, smaller businesses (50+ employees) are increasingly exploring self-funded options, often with robust stop-loss insurance to manage their exposure.

What are the main benefits of a self-funded plan?

Key benefits include greater flexibility in plan design, potential for significant cost savings if claims are low, increased transparency into healthcare spending, and the ability to customize benefits to better suit employee needs.

What are the main drawbacks or risks?

The primary drawback is the financial risk associated with higher-than-expected claims. Other considerations include the administrative burden (even if handled by a TPA) and the need for careful financial planning and management.

How does self-funding affect employee benefits?

For employees, the experience is often very similar to a fully-insured plan, as a TPA handles claims and customer service. The benefits themselves can be more customized to their needs, potentially leading to better coverage for specific services.

Key Difference

Fully-Insured: Employer pays fixed premiums to an insurer, who pays claims. Predictable costs, less control.
Self-Funded: Employer pays claims directly. Variable costs, more control, relies on stop-loss insurance.