Measuring Cost Savings Replacing Group Insurance With ICHRA

TL;DR

Measuring cost savings after replacing group insurance with ICHRA means comparing fully loaded costs on both sides, not just old premiums versus new allowances. The calculation must include admin fees, platform costs, compliance work, PCORI fees, and employee impact. A lower employer bill is not real savings if employees absorbed the difference through higher premiums, lost subsidies, or weaker coverage. This article provides the formulas, cost checklists, and a practical scorecard for an honest post-switch review.

What This Term Means

Measuring cost savings after replacing group insurance with ICHRA is the process of comparing what an employer spent (or would have spent) on a traditional group health plan against what it actually spends under an Individual Coverage HRA. The calculation should include employer premium contributions, ICHRA reimbursements, platform fees, administrative costs, compliance costs, payroll processing, unused allowances, and employee impact.

The short formula:

Employer ICHRA savings =
Fully loaded group-plan baseline
− Fully loaded ICHRA cost

That formula only captures the employer side. A complete measurement also tracks whether employees paid less, paid more, lost premium tax credits, changed plan quality, or moved into narrower provider networks. Cost savings are not just the gap between last year’s group premium and this year’s ICHRA allowance. They are the difference between old and new total benefit economics after accounting for every cost on both sides.

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Why This Measurement Matters

Group health insurance is expensive and getting more expensive. KFF reported that in 2025, average annual employer-sponsored premiums reached $9,325 for single coverage and $26,993 for family coverage, with premiums rising 5% to 6% over the prior year source. Small employers feel this acutely: covered workers at firms with 10 to 199 employees contributed an average of 36% of family premiums, compared with 23% at larger firms.

These numbers push employers toward alternatives. ICHRA is one of the most significant because it shifts the employer from a defined-benefit model (promising a specific health plan) to a defined-contribution model (promising a specific dollar amount). KFF explains that this shift gives employers more control and predictability over benefit costs, but it also transfers some responsibilities and financial risk to employees source.

That transfer is exactly why careful measurement matters. Without it, an employer might claim savings that are really just cost shifting. ICHRA adoption is growing (the HRA Council reported ALE adoption up 34% and small non-ALE adoption up 52% among founding members in recent data source), but it remains small relative to the 154 million people covered by traditional employer plans. That makes rigorous measurement more important, not less.

The Three-Layer Savings Framework

Layer 1: Employer Cash Savings

This is the CFO view.

Employer cash savings =
Old employer group spend
− New employer ICHRA spend

Both sides need to be “fully loaded,” meaning every cost category is counted. A finance team should calculate two versions:

1. Actual-year savings: last year’s real group-plan cost versus this year’s real ICHRA cost.
2. Renewal-avoidance savings: the projected renewal quote versus the new ICHRA cost.

The second number usually looks better. Label it clearly. “Savings versus what we would have spent” is different from “savings versus what we did spend.”

Layer 2: Employee Net-Cost Impact

This is the HR and retention view.

Employee net impact =
Old monthly employee group contribution + old expected out-of-pocket cost
− New monthly individual premium after ICHRA + new expected out-of-pocket cost

A positive number means the employee pays less. A negative number means the employee pays more. For a deeper look at financial modeling for this kind of transition, see this guide on measuring financial impact when switching to ICHRA.

Layer 3: Risk and Quality Adjustment

Adjust any savings claim for ACA affordability pass or fail, employee subsidy loss, provider network disruption, lower metal-tier migration, enrollment errors, and employee support burden. A savings number without this layer is an employer-spend reduction, not a true savings figure.

What to Include in the Group-Plan Baseline

When measuring ICHRA cost savings, the most common mistake is an incomplete baseline. Here is what belongs in the old group-plan cost:

Use KFF’s 2025 averages as context for benchmarking, not as your specific baseline. Every employer’s actual group cost differs by size, location, industry, and plan design.

What to Include in the ICHRA Cost

The ICHRA side of the equation needs the same rigor:

Don’t overlook COBRA obligations that may carry over when replacing group coverage. ICHRAs are group health plans under ERISA, so COBRA analysis remains relevant for many employers.

Example Calculation

This is a hypothetical example using KFF’s 2025 national averages. Your actual numbers will differ.

Scenario: 20 employees, single coverage

Old group-plan cost:

• Average annual single premium: $9,325
• Average annual worker contribution: $1,440
• Implied employer contribution: $7,885 per employee
• Total employer group cost: 20 × $7,885 = $157,700

New ICHRA cost:

• $500 monthly allowance per employee
• Annual allowance budget: $500 × 12 × 20 = $120,000
• Platform fee at $29 per employee per month: $29 × 12 × 20 = $6,960
• Estimated PCORI fee: 20 × $3.84 = $76.80
• Total ICHRA cost: $127,036.80

Employer savings = $157,700 − $127,036.80 = $30,663.20
Savings percentage = $30,663.20 ÷ $157,700 = 19.4%

This measures employer cash savings only. A real post-switch review also needs employee premium changes, deductible shifts, network access, and premium tax credit impact. For budgeting purposes, calculating costs on a per-employee-per-month basis gives a cleaner comparison, especially if headcount changes after the switch.

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How to Measure Employee Impact

Measuring cost savings after replacing group insurance with ICHRA is incomplete without the employee side. Track these metrics for every participant:

Premium comparison. What did the employee pay monthly under the group plan? What does the employee pay for an individual plan after the ICHRA reimbursement? One practitioner on Reddit recommended “pretend shopping” for representative employees before the switch, using a plan-shopping site and the proposed contribution amount to estimate costs for plans similar to the old group coverage. That commenter said their company calculated employees would save about $30,000 per year in premiums while the company would avoid $80,000 in contributions at the next renewal.

Coverage quality. Practitioners on Reddit report that premiums can go down while coverage feels worse. An employee at a roughly 500-person company that moved to ICHRA said premiums dropped, but plan-selection complexity and coverage quality both felt like a step backward. Premium savings paired with higher deductibles or narrower networks is not the same as genuine savings.

Premium tax credit impact. HealthCare.gov states that if an ICHRA offer is affordable, the employee and household members cannot receive premium tax credits on Marketplace coverage, even if the employee declines the HRA source. Georgetown CHIR warns this is especially risky for low-wage and older workers, who may face higher individual-market premiums and lose the subsidies that would have reduced them source.

Opt-out rate. If many employees decline the ICHRA, employer costs look lower, but those employees may have gone uninsured or found the available plans inadequate. Track it.

ACA Affordability and Premium Tax Credits

For Applicable Large Employers, the ICHRA must meet ACA affordability standards to avoid employer shared-responsibility penalties. For 2026 plans, an ICHRA is considered affordable when the employee’s monthly cost for the self-only lowest-cost Silver plan, after the HRA amount, is less than 9.96% of one-twelfth of household income.

Two things matter here:

First, “affordable” in the ACA sense does not mean employees find the coverage cheap. It means the ICHRA passes a specific legal calculation. Employee-perceived affordability is broader and includes the deductible, out-of-pocket maximum, prescription costs, and whether current doctors are in network.

Second, ALEs typically do not know employees’ household incomes, so the IRS allows safe harbors based on Form W-2 wages, rate of pay, or the federal poverty line. For a detailed walkthrough, see this guide on ACA affordability safe harbors.

When measuring cost savings after replacing group coverage with ICHRA, track both ACA affordability pass rates and real employee premium burden. An ICHRA that passes the legal test but leaves lower-paid workers paying 8% of income toward premiums may be compliant yet still hurt retention.

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Where Savings Come From (and What to Watch For)

When an employer saves money after replacing group insurance with ICHRA, identifying the source matters as much as the dollar amount.

Georgetown CHIR warns that employer ICHRA contributions are not required to rise with annual premium increases, so employees can absorb more cost each year if allowances stay flat. Average savings can also hide losers. Break results out by employee class, age band, geography, and dependent tier whenever possible.

One real-world example from Peak Health Alliance: a Colorado business reportedly moved from insuring 7 people for just over $44,000 under a small group plan to insuring 16 people for under $30,000 through ICHRA source. That is a striking number. But it also reflects a local market and a specific employee census, not a universal outcome.

The Post-Implementation Scorecard

Most content about ICHRA focuses on pre-switch comparisons. But measuring cost savings after replacing group insurance with ICHRA means tracking results over time.

Practitioners on Reddit consistently flag transition friction as an underappreciated cost. One small-business owner described an employee who felt the employer had “shifted responsibility” to her. Another user criticized their employer for not providing enough advance warning before the change. Brokers in a separate thread noted that employer contributions need to be meaningful so employees are not worse off than they would be with Marketplace subsidies.

These are predictable first-year challenges. Budget for them and track them. For compliance tasks during and after the transition, audit and reporting standards provide a useful reference.

Common Mistakes When Measuring ICHRA Savings

1. Comparing the allowance to the old premium. The allowance is not the full ICHRA cost. Add platform fees, admin work, compliance, and employee support.
2. Ignoring premium tax credits. An affordable ICHRA offer blocks employees from Marketplace subsidies. That lost value belongs in the measurement.
3. Ignoring deductibles and networks. Lower premiums paired with $9,000 deductibles and narrow networks are not equivalent to the old PPO.
4. Counting unused allowances as cash spent. If an employee did not submit reimbursement, the employer did not spend that money. Track actual reimbursements paid.
5. Using national averages instead of local quotes. Individual-market premiums vary dramatically by ZIP code, age, and household size.
6. Failing to separate prior-year savings from renewal-avoidance savings. Both are valid, but they answer different questions.
7. Not communicating the change early enough. Transition friction drives up support costs and damages trust.
8. Treating ICHRA as set-and-forget. Allowances, individual-market premiums, and employee needs all change. Re-measure annually at minimum.

Frequently Asked Questions

How do you calculate ICHRA savings after leaving a group plan?

Subtract your fully loaded ICHRA cost (reimbursements paid, platform fees, admin, compliance, employee support) from your fully loaded group-plan cost (employer premiums, broker fees, COBRA, HR time, account contributions). Report both the dollar savings and the savings percentage. Use per-employee-per-month figures so headcount changes do not distort the comparison.

Should unused ICHRA allowance count as savings?

No. If an employee was allocated $500 per month but only claimed $400, the $100 difference was never spent. Count actual reimbursements paid for a true cost figure, and use allowance caps for budget-exposure analysis. The gap between the two is your allowance utilization rate.

Is ICHRA always cheaper than group health insurance?

Not always. Savings depend on workforce demographics, local individual-market premiums, the allowance amount, employee plan choices, and whether employees lose premium tax credits. KFF notes that individual-market premiums can be lower than small-group premiums in some rating areas, but this varies across markets.

What hidden costs should employers include?

Platform or admin fees, broker or advisor fees, payroll integration setup, employee enrollment support (especially in year one), ERISA and ACA compliance work, PCORI fees, COBRA analysis, and internal HR labor. A cheaper ICHRA platform that generates heavy support burden for HR is not actually cheap.

How do premium tax credits affect ICHRA savings measurement?

If the ICHRA offer is affordable under the ACA formula, employees and their household members lose eligibility for premium tax credits, even if they decline the ICHRA. This lost subsidy value should be part of any honest measurement of whether the switch helped or hurt employees.

Can employees be worse off even if the employer saves money?

Yes. Employees may face higher premiums, higher deductibles, narrower networks, lost premium tax credits, or confusion navigating plan selection. Measuring cost savings after replacing group insurance with ICHRA should always include both the employer and the employee side of the equation.

How often should employers re-measure ICHRA savings?

At minimum, measure at enrollment close, at mid-year, at year-end, and before the next individual-market renewal. ICHRA contributions are not required to rise with premiums, so year-two costs can shift significantly if allowances stay flat while individual-market prices increase.

What is a good ICHRA savings percentage to target?

There is no universal target. Any claimed savings percentage is only meaningful if it accounts for employee impact, coverage quality, and compliance. A 20% employer savings figure that comes with widespread employee dissatisfaction, network disruption, and subsidy loss is not a success. Report savings alongside employee outcomes for the full picture.

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