A renewal lands on your desk. It has a rate, a percentage increase, and a summary of last year's claims. The number reads like an invoice. It is a projection. Most renewal conversations debate the increase. Few examine the formula underneath.
How the rate is built
For an experience-rated employer plan, the build runs in a fixed order:
- Base claims. Actuaries pull paid claims from the prior year or base period.
- Trend factor. They apply a factor for unit cost, utilization, and technology.
- Adjustments. They adjust for benefit changes, demographics, and plan elections.
- Load and margin. They add administrative load, taxes and fees, stop-loss cost, and a risk margin.
The result becomes next year's premium. Large employers with enough claims data get experience-rated pricing that weights their own history heavily. Smaller groups often get pooled community rates that cap that influence.
What paid claims miss
Actuaries work with paid claim files. Those files contain billed charges, allowed amounts, dates of service, diagnosis codes, and member identifiers. They omit several things that matter to next year's rate:
- The bill review that never happened
- The screening that was skipped
- The telehealth visit that would have replaced an emergency room trip
The actuary sees only the claim that resulted. Actuaries build the model to project what the current system will produce. The model has no correction for what the current system overpays or misses.
Trend multiplies the base
An estimated 20-25% of healthcare spend is wasted. The rate formula has no waste adjustment. Actuaries apply the trend factor to total claims, which include the waste. If the base period contains inflated charges, avoidable emergency visits, duplicate tests, and unmanaged chronic conditions, the trend factor compounds all of it.
Employers feel this as the annual 5-7% premium increase, because a 6% trend on a $10 million claims base adds $600,000 before admin and margin, while the waste embedded in that base remains invisible. The arithmetic is visible. The waste is not. Next year's rate inherits last year's inefficiency because the formula has no subtraction for it.
Self-funding does not escape the math
Self-funded employers do not buy an insured premium. They pay claims, administrative fees, and stop-loss premiums. Their version of a rate appears as a budget projection and a stop-loss renewal. The stop-loss carrier prices risk using the same base claims and trend. A high-claim base inflates both the employer's stop-loss premium and the insurance carrier's rate. The same waste flows into both numbers.
Changing the claims base
Actuaries read the primary plan's experience when they set rates. If fewer claims reach that plan, the base shifts. WellthCare™, the first Health-to-Wealth™ Benefit System, works alongside an employer's existing ACA-compliant group health coverage and gets used first. It is not a replacement for major medical. Employees use it before the primary plan for routine care, urgent care, diagnostics, and preventive visits. Those claims do not become part of the primary plan's paid claim file. Employers add it alongside the current plan with no disruption and no new out-of-pocket cost.
Employees earn reward dollars at the WellthCare Store™, real, spendable dollars for 3,000+ FSA-approved, health-supporting products. Employers commit savings to employees' retirement accounts as those actions add up. Those rewards are tied to verified preventive health actions, not points or reimbursement.
Prevention changes the base
Only 32% of Americans get an annual physical and about 8% complete recommended preventive care. That gap is a rate-setting problem. Missed prevention shows up later as higher-cost claims. When employees complete preventive actions, the WellthCare platform verifies them using standardized preventive care codes, and the employee earns rewards. Each completed screening, scan, or telehealth visit can route routine care away from high-cost settings and catch issues earlier.
About 1 in 3 Americans skip care or prescriptions because of cost. When people skip care, health worsens and claims rise later. A $0-co-pay first-use plan removes that cost barrier at the point of care. The rate-setting effect shows up in the next base period: fewer delayed diagnoses and fewer avoidable high-cost events enter the primary plan's claims file.
The renewal conversation changes
After six to twelve months of real usage, the WellthCare Readiness Index™ turns the employer's own data into a report. It shows when and how much the employer would save by expanding. The Readiness Index delivers math, not marketing. The employer walks into renewal with a lower claims base and the data to prove it.
Actuaries will keep projecting claims. The formula stays standard. Employers can change the data it reads. That is the difference between accepting a renewal and managing it.
See what a WellthCare Plan would look like for your team.
Healthcare that pays you back.
This article is for general information only and is not legal, tax, or medical advice. Employers should consult their own advisors.