The following is a guest post by Michael Paull, President and CFO of Ahola. The views expressed are solely those of the author.

In the workplace, few changes generate as much complaint as switching health plans. New insurance cards, different healthcare providers, and prescription drug transitions create significant inconvenience for employees and their families. However, for leadership teams, this decision is rarely driven by emotion. Health benefits are typically the second-largest expense after wages, and rising premiums force companies to re-examine plan design year after year.

For many CFOs, the health plan is often inherited rather than built. Under the traditional fully insured structure, the mechanics are relatively simple: the company pays a fixed monthly premium, the insurer assumes the claims risk, and renewal becomes a budgeting exercise.

Over the past two decades, employers have sought ways to slow cost increases. High-deductible health plans encourage employees to take on more responsibility and become more cost-conscious. For many organizations, self-funding has become the logical next step—rather than paying an insurer to transfer risk, they assume the claims risk directly in exchange for greater control and potential savings.

But once that decision is made, the real change is not pricing—it is responsibility.

When you choose to self-fund, you are no longer just purchasing insurance; you are operating a health plan, and much of that responsibility shifts to the finance department.

Cash Flow and Funding Mechanics

The first impact is on cash flow.

Under a self-funded structure, the single fixed premium payment disappears, replaced by multiple cash outflows that the finance department must forecast, fund, and monitor.

Companies typically pay a fixed fee to a third-party administrator for claims processing, reporting, and plan management. Stop-loss insurance (which protects the company against catastrophic claims) is usually quoted on a per-employee, per-month basis. In addition to these fixed costs, the company must fund actual medical and pharmacy claims as they occur, typically paid weekly with significant fluctuations in amounts.

Additional services such as wellness programs or supplemental insurance add further variability.

This creates a more complex and harder-to-predict cash position. What was once a fixed expense now resembles a liability that needs to be managed.

The administrative workload also increases. Accounting and HR teams must handle multiple vendors, track claims activity, and reconcile funding levels. The overall reduction in healthcare costs must offset these added responsibilities, but achieving that result requires active oversight.

Forecasting and Reserves

Managing a self-funded plan is not just about paying bills; it requires thoughtful planning and funding decisions.

One approach is to pre-fund claims based on projected costs, allowing the third-party administrator to draw from that pool as claims are paid. This smooths cash flow and improves predictability. Another approach is to pay claims as they are incurred. While this preserves cash early in the year, it creates uneven and unpredictable spending that complicates budgeting.

Claims typically start slowly early in the plan year and increase as deductibles are met. The lag between service delivery and claims processing further exacerbates the delay. Without a funding strategy and adequate reserves, even well-managed organizations can face unexpected volatility.

The finance department must evaluate funding frequency while considering working capital needs, seasonality, debt obligations, and capital projects. These decisions should be clearly reflected in the income statement and cash flow forecasts.

Employee Cost Sharing and Risk

Self-funding also complicates the traditional cost-sharing model.

Employees typically pay fixed payroll deductions, while the company assumes variable claims risk. If claims exceed expectations, the company cannot retroactively adjust employee contributions. Setting contribution rates too low strains the budget, while setting them too high can harm employee retention and morale.

Actuarial projections and historical claims data help with pricing, but uncertainty remains. A few high-cost cases can significantly impact results. Clear assumptions, conservative projections, and transparent communication are essential.

At its core, self-funding is about risk sharing. The company shares catastrophic risk with the stop-loss insurer and day-to-day usage risk with employees. Aligning incentives and promoting responsible healthcare consumption can lead to better outcomes for everyone.

Accounting, Controls, and Compliance

At the operational level, the finance department takes on responsibilities that were previously handled by the insurer.

Access to detailed claims data improves visibility but also introduces new compliance obligations. Organizations must protect protected health information and ensure appropriate access controls. Formal policies and procedures around HIPAA compliance become critical.

From an accounting perspective, separating administrative fees from claims funding improves analysis and budgeting. Tracking claims trends throughout the year provides deeper insights at renewal time and supports more accurate forecasting.

Vendor management also becomes more complex. Instead of a single monthly premium invoice, there may be multiple invoices covering administration, medical claims, and pharmacy claims, often arriving weekly. Reconciliation and oversight become ongoing tasks.

Certain plans also require collateral deposits to the stop-loss insurer, which affects cash flow. Depending on overall performance, the company may receive dividends tied to pooled results. These programs introduce additional accounting considerations.

Transitioning to a self-funded health plan does more than change how benefits are paid; it changes the role of the finance department.

Predictable premiums are replaced by fluctuating cash flows, reserve decisions, compliance requirements, and ongoing operational oversight. Claims funding, employee cost sharing, data protection, accounting treatment, and vendor management all shift from the insurer's responsibility to inside the company.

In effect, you are no longer just sponsoring a plan; you are operating a plan, managing a healthcare risk pool.

Organizations that approach self-funding with the same discipline they apply to other financial commitments often gain better visibility and achieve meaningful long-term savings. But these benefits are not automatic; they require active management, strong controls, and consistent governance.

Self-funding is not passive; it requires active management. It is an operational responsibility, and the finance department is its primary bearer.