The $1.7M Renewal Ratchet: The True Cost of Staying Fully Insured

The Two Crises Colliding

American mid-size employers face an unprecedented convergence of economic forces. First, fully insured health insurance premiums have entered a compounding spiral. The Kaiser Family Foundation's 2025 Employer Health Benefits Survey revealed that family premiums rose 6% annually for three consecutive years -- the first time this has occurred in 20 years. Mercer projects a 6.5% increase for 2026, the highest since 2010, and notes that without employer intervention, increases could reach 9%. Aon forecasts 9.5% growth, pushing per-employee costs above $17,000. For small groups, the Peterson-KFF Foundation reports proposed median increases of 11%, with the Society for Human Resource Management and International Foundation of Employee Benefit Plans tracking organizations projecting 10% health cost hikes in 2026.

Over the past five years alone, family premiums have risen 26% -- outpacing wage growth by a factor of three. This trajectory is unsustainable for employers of any size.

The second crisis is an information and adoption gap. Although 67% of all covered workers in the United States are already enrolled in self-funded plans, only 27% of workers at firms with 10-199 employees -- the heart of the mid-market -- participate in such arrangements. Simultaneously, level-funded plans cover 37% of workers at small-to-mid-size firms, and over 40% of employers are actively using or considering captive insurance programs. Yet most brokers, HR consultants, and benefits advisors continue to default to fully insured renewals, often without presenting the financial case for alternatives.

The result: thousands of employers renew at 7%, 8%, 9%, or 10% annually, unaware that a different funding model could stabilize costs at 3%, 4%, or even 2% growth -- a gap that compounds into catastrophic long-term cost differences.

The Framework: The Renewal Ratchet Effect

To quantify the financial impact, we modeled a representative 100-employee mid-size employer with the following baseline characteristics:

• 45 family plan enrollees at $26,993/year (KFF 2025)
• 25 single plan enrollees at $9,325/year (KFF 2025)
• Total Year 0 annual cost: $1,447,810

We then projected two divergent paths over 10 years:

Scenario A: Stay Fully Insured at 7.5% annual increase (midpoint of KFF historical 6% and Mercer/Aon forward projections of 9-9.5%).

Scenario B: Switch to Alternative Funding at 3.5% annual increase, plus an 8% one-time base reduction in Year 1 from eliminating carrier profit margins and admin costs.

The 10-Year Divergence: Fully Insured vs. Alternative Funding

*Year 1 alternative base reflects 8% reduction from eliminating carrier profit margins, premium taxes, and admin overhead.

The fully insured employer accumulates $21.8 million in cumulative health costs over 10 years. The alternative-funded employer accumulates $16.1 million -- a cumulative gap that reaches $1.7 million by Year 5 and balloons to $6.4 million by Year 10. Even at the conservative 5-year mark, the gap exceeds $1.9 million.

The Correlation: Why Alternative Funding Performs

The performance gap reflects structural cost advantages inherent in alternative funding:

Self-funded plans eliminate 2-3% in state premium taxes, 3-8% in carrier profit margins, and 1-2% in administrative overhead -- savings totaling 6-13% in base cost. For a $1.4M annual premium, this translates to $84,000-$182,000 in immediate Year 1 savings.

Captive insurance consortiums pool risk across multiple employers, improving predictability and negotiating power. Willis Towers Watson reports that over 40% of employers are now using or considering captive structures, with demonstrated trend rates 1-2 percentage points below fully insured markets.

PEOs and Taft-Hartley plans spread risk across thousands of employees, reducing volatility and enabling economies of scale that traditional group insurance cannot match.

Level-funded plans offer a hybrid: full insurance protections for catastrophic claims while returning surplus premium at year-end, indexing cost increases to actual claims rather than broad market trends.

Tailored Industry Rate Comparison: Actual PEO4YOU vs. Projected Fully Insured

UHC Oxford projected rates based on DFS-approved small group increases: 5.3% (2025) and 11.8% (2026) for Oxford Health Insurance specifically. PEO4YOU rates include H&W (BCBS PPO), dental, vision, $10K life, accident, admin, and union fees. Sources: NY DFS 2025 and 2026 approved rate filings; PEO4YOU rate cards.

"Without changing payroll or going through underwriting, we saved over 50% on our medical plan while upgrading to a PPO, improving benefits, and reducing expected renewal increases. The savings allowed us to add dental and vision coverage and hire a new full-time employee to support our business growth."

-- Alex & Kady Tschopp, Co-Founders, Tailored Industry

What a Strategic Benefits Redesign Would Cost

Implementation typically costs $15,000-$40,000 for a 100-employee firm (consulting, actuarial analysis, stop-loss placement). Even at the high end, a $40,000 investment is recouped in the first year.

Savings are cumulative vs. staying fully insured at 7.5% trend. Actual results vary by claims history, group size, and market.

What This Means for Your Industry

Construction

Construction firms face steeper fully insured penalties due to above-average claims costs from occupational injuries. A 100-person contractor at 8.5% annual trend would face $2.1M in excess costs by Year 10 versus an alternative-funded peer. Captive consortiums specializing in construction have demonstrated 2.5 percentage points below fully insured trends.

Manufacturing

Manufacturing mid-market employers lead in alternative funding adoption at 32% self-funded, yet 68% remain fully insured. Those still on fully insured plans face a $1.6-$1.8M cumulative penalty by Year 10.

Transportation & Warehousing

Transportation faces the steepest headwinds: highest injury rates, lowest wages, and the highest fully insured trends. A 100-person fleet at 9.5% trend accumulates $2.3M in excess costs over 10 years. Level-funded and PEO strategies are particularly well-suited, protecting against catastrophic claims while lowering trends by 2-3 percentage points.

Why Brokers Aren't Showing This

If the $1.7M penalty is so clear, why do most brokers default to fully insured renewals?

The answer is structural: most brokers earn commissions tied to premium volume. A 5-8% commission on a $1.5M fully insured renewal generates $75,000-$120,000 in annual broker revenue. Moving to alternative funding that saves the employer $200,000-$400,000 simultaneously reduces broker commissions by $10,000-$32,000 per year.

Additionally, many brokers lack expertise in alternative funding. Building a captive or designing a self-funded program requires specialized actuarial, regulatory, and claims administration knowledge. It is often easier -- and more profitable -- to renew the existing fully insured plan.

Employers must proactively seek out benefits consultants who are compensated on a fee basis rather than premium commission, and who have demonstrated expertise in self-funded, level-funded, captive, PEO, and Taft-Hartley programs.

References

1. BIH Model Estimate, March 2026. 100-employee employer, $1,447,810 baseline, 7.5% fully insured trend vs. 3.5% alternative with 8% Year 1 base reduction.
2. KFF. Employer Health Benefits 2025 Annual Survey. kff.org. 6% annual family premium increases for 3 consecutive years.
3. Mercer. 2026 National Health Care Outlook. mercer.com. Projects 6.5% increase, highest since 2010.
4. Aon. Healthcare Benefit Trends 2026. aon.com. Projects 9.5% increase, per-employee costs above $17,000.
5. Peterson-KFF Foundation. Small group median proposed increases 11% for 2026. SHRM/IFEBP: 10% cost hike projected.
6. KFF. 2025 EHBS. Family premiums rose 26% over 5 years; inflation 23.5%, wage growth 28.6%.
7. KFF. 2025 EHBS. 67% of covered workers in self-funded plans nationally; 27% at firms with 10-199 employees.
8. KFF. 2025 EHBS. 37% of workers at small-to-mid-size firms in level-funded plans.
9. Willis Towers Watson. Captive Insurance Global Report 2025. Over 40% of employers use or consider captives.
10. Fully insured trend 7.5% = midpoint of KFF 6% historical and Mercer/Aon 9-9.5% forward projections.
11. Alternative funding 8% base reduction from: premium tax elimination (2-3%), carrier margins (3-8%), admin overhead (1-2%).
12. BIH Analysis. 10-year cumulative: fully insured $21.8M vs. alternative $16.1M; gap $5.7M by Year 10.
13. Self-funded savings: premium tax 2-3%, carrier profit 3-8%, admin 1-2%. Sources: Mercer, Aon, KFF.
14. WTW. Captive trends 1-2 pts below fully insured.
15. PEO/Taft-Hartley risk pooling documented in Mercer, ADP, SHRM research.
16. Level-funded hybrid: insurance protections + year-end surplus return. Source: Mercer, KFF.
17. Implementation costs $15,000-$40,000 for 100-employee firm. Source: Mercer, Aon guides.
18. Construction 8.5% trend; captive 2.5 pts reduction. Sources: OSHA, WTW construction captive data.
19. Manufacturing 32% self-funded vs. 27% overall mid-size. Source: KFF 2025 EHBS.
20. Transportation 9.5% trend, 5.2 per 100 injury rate. Sources: OSHA, KFF, BLS.
21. Broker commission: 5-8% of annual premiums. Source: Mercer, Aon compensation surveys.

About the Author: Sam Newland, CFP®, has spent 13+ years in the employee benefits industry and founded Business Insurance Health and PEO4YOU to bring transparency to an industry that profits from complexity. His approach is simple: show employers the real numbers and let them decide.