Benefit open enrollment guide: optimize costs and retention

Sydney Little
Apr 9
8 min read

Family premiums hit $26,993 in 2025 — up 6% year over year. That number lands on your desk during renewal, and the question that follows is usually the wrong one: how do we absorb this? The better question is what decisions, made during open enrollment, could have changed that outcome. Most HR and finance teams treat open enrollment as an administrative event. A window to clear a checklist. A deadline to hit before the new plan year starts. That framing is expensive. Open enrollment is the one moment each year when every employee is paying attention to their benefits, and when the structural decisions you make either compound your cost problem or begin to solve it.

In This Post

What Nonprofit Leaders Need to Know Before Enrollment Opens
Benefits Cost Trends and Benchmarking Data: What the Numbers Say for 2026
Cost Containment Strategies for Open Enrollment That Don't Cut Value
Using Your Benefits Selection Guide to Drive Retention, Not Just Enrollment
This Benefit Open Enrollment Guide Won't Help If You're Only Focused on Compliance
Work With a Benefits Advisor Who Understands Your Sector
Frequently Asked Questions

Key Takeaways

Rising Premium Cost	Family premiums averaging $26,993 in 2025 make passive open enrollment decisions a measurable financial liability.
Cost Without Cuts	Dependent eligibility audits, contribution strategy shifts, and voluntary benefit layering can reduce cost without touching plan richness.
Voluntary Benefit Demand	Voluntary dental enrollment is up 78% since 2023 — employees are actively seeking supplemental coverage, and organizations that offer it see stronger perceived value without added employer cost.
Enrollment as Leadership	Organizations that get the most from open enrollment treat it as a leadership moment, not a compliance exercise.

What Nonprofit Leaders Need to Know Before Enrollment Opens

Open enrollment is the annual period when employees can add, drop, or change their benefit elections for the coming plan year. Outside this window, changes are only permitted when a qualifying life event occurs: marriage, a new dependent, or loss of other coverage. For nonprofits and healthcare organizations, that window carries extra weight. Your workforce is often mission-driven, compensated below private-sector peers, and acutely sensitive to benefit changes that affect take-home value.

Timelines vary, but most Southeast nonprofits and healthcare employers run enrollment in October or November, with coverage effective January 1. Some organizations on non-calendar fiscal years run it differently. Special enrollment periods can open mid-year when qualifying events occur, and missing those triggers creates compliance exposure and employee frustration that surfaces at the worst possible time.

Compliance is not optional. The ACA requires applicable large employers to offer minimum essential coverage to full-time employees or face penalties. ERISA governs plan documentation, summary plan descriptions, and fiduciary responsibilities. Common errors — late distribution of Summary of Benefits and Coverage documents, failure to notify employees of special enrollment rights, sloppy dependent eligibility verification — are expensive and avoidable.

A few edge cases trip up even experienced HR teams. Tobacco surcharges and working spouse surcharges are legally permitted under ACA wellness rules but must be structured carefully to avoid discrimination claims. Dependent eligibility audits can recover measurable cost. Post-COVID, workplace flexibility is now standard at 95% of nonprofits, which means remote and hybrid workers need enrollment processes that function entirely in a digital environment.

Key terms to know going in:

HDHP (High-Deductible Health Plan): A plan with lower premiums but higher out-of-pocket costs, often paired with a Health Savings Account (HSA)
Surcharge: An additional premium cost applied when employees engage in certain behaviors, such as tobacco use or enrolling a working spouse who has other coverage available
Dependent verification: The process of confirming that individuals enrolled as dependents actually meet eligibility criteria under the plan

Post-COVID flexibility is no longer a perk. It is a baseline expectation. Your open enrollment process needs to reflect that reality, from digital enrollment tools to benefits that serve a distributed workforce. For a closer look at staying on the right side of federal requirements, the benefits compliance guide at Thrive Benefits Group is a practical starting point.

Benefits Cost Trends and Benchmarking Data: What the Numbers Say for 2026

Without benchmarking, you are making benefits decisions without a reference point. The 2025 Employer Health Benefits Survey gives us the clearest picture of where costs and coverage stand heading into 2026 planning.

Family premium (annual)	$26,993	Up 6% year over year
Single premium (annual)	$9,325	Consistent with prior year trend
Single deductible (avg)	$1,886	Varies by plan type
Medical coverage offered	99% of nonprofits	Near universal
HDHP adoption	42% of nonprofits	Growing steadily
Employer contribution range	50% to 70%	Stable across sectors

The number worth pausing on: voluntary dental enrollment is up 78% since 2023. That is not statistical noise. Employees are actively seeking supplemental coverage, and organizations that offer it as part of a layered benefits package are seeing stronger enrollment and higher perceived value without necessarily increasing employer cost. A useful benefits selection guide surfaces not just what plans cost, but where employee demand is moving.

Benchmarking informs your strategy in four specific ways:

It tells you whether your premiums are competitive or an outlier in your region
It reveals whether your employer contribution strategy is aligned with peer organizations
It shows you where voluntary benefit gaps exist that competitors may already be filling
It gives your leadership team data to defend decisions to boards and executive committees

In South Carolina specifically, nonprofit median salaries are up 17% since 2022, and more than 75% of SC nonprofits now offer medical, dental, vision, and paid time off as a standard package. That is the competitive floor, not a differentiator. If you are not at that baseline, you are already behind.

For a structured way to apply this data to your planning cycle, the benefits checklist 2026 walks through each decision point in sequence.

Cost Containment Strategies for Open Enrollment That Don't Cut Value

Benchmarking sets the context. Open enrollment is where you act on it. Cost containment during this period does not mean cutting benefits. It means being precise about where money goes and whether it is generating measurable value.

The most effective moves to make during enrollment:

Migrate employees to lower-cost plan options. If you offer both a traditional PPO and an HDHP, make sure employees understand the real cost difference. Many stay on high-premium plans out of habit, not informed preference. Clear side-by-side comparisons drive meaningful migration.
Optimize your employer contribution strategy. Employer contributions in the 50% to 70% range are the norm. Shifting from a flat-dollar contribution to a percentage-based model can align your spend with actual plan costs and reduce renewal surprises.
Run a dependent eligibility audit. Ineligible dependents on your plan are a direct cost leak. A structured audit before enrollment closes is one of the fastest ways to recover spend without touching plan design.
Add or expand voluntary benefits. Dental, vision, life, and disability coverage offered on a voluntary basis shifts cost to the employee while increasing perceived value. This is not a reduction in benefits. It is a smarter structure.
Apply wellness incentives and surcharges deliberately. Tobacco-free discounts and working spouse surcharges, when properly structured, reduce cost and reward healthy behavior without triggering compliance issues.

Do not just evaluate your top-line premium increase when assessing cost drivers. Pull your claims data and identify the three to five conditions generating the most spend. Silent drivers — chronic disease management, mental health utilization, high-cost specialty drugs — often account for a disproportionate share of cost and can be addressed through targeted plan design changes.

Transparent communication is not optional when you are making plan changes. Employees who feel blindsided by cost shifts disengage or leave. A phased announcement, informational sessions, and written comparisons reduce resistance and improve outcomes. For more on structuring this process, see how cost savings with benefits brokers and benefits technology can reduce administrative burden during enrollment.

Using Your Benefits Selection Guide to Drive Retention, Not Just Enrollment

Benefits are only as powerful as the employees who understand and use them. An employee who does not understand their benefits does not value them. That gap shows up in exit interviews long after the enrollment window closes.

The difference between a traditional open enrollment approach and an engagement-focused one is not primarily a budget question. It is a design question.

One email with a PDF attachment	Multi-channel campaign: email, video, in-person sessions
Enrollment deadline reminder only	Early education starting 4 to 6 weeks before deadline
Standard plan comparison sheet	Personalized total rewards statement
No feedback mechanism	Post-enrollment survey to capture gaps
HR answers questions reactively	Proactive Q&A sessions and decision-support tools

Proven engagement practices for the enrollment period:

Start communications at least four weeks before the enrollment window opens
Use plain language in all materials — jargon employees won't act on is jargon that doesn't work
Offer multiple formats: written guides, short videos, and live sessions
Create a feedback loop so employees can flag confusion before it becomes dissatisfaction
Highlight the total value of the benefits package, not just health insurance costs

If your organization has a Medicaid-heavy workforce, behavioral health access is likely your top driver of dissatisfaction. Behavioral health gaps in these populations are well documented. Address this directly during enrollment by surfacing EAP resources and mental health benefits — employees who feel supported in this area are more likely to stay. This is one of the most underutilized levers in a health benefits open enrollment process.

Voluntary benefits — with voluntary dental up 78% since 2023 — give employees flexibility and signal that you understand their diverse needs. For more on building this kind of strategy, see HR's role in benefits and how employee benefits advocacy can shift the culture around enrollment. Understanding membership management basics can also inform how you segment communication for different parts of your workforce.

This Benefit Open Enrollment Guide Won't Help If You're Only Focused on Compliance

The organizations that get the most out of open enrollment are not the ones with the richest plans. They are the ones that treat enrollment as a leadership moment. That distinction matters more than any single plan design decision.

Compliance is the floor, not the ceiling. When HR and finance teams spend all their energy on ACA checklists and ERISA documentation, they miss the real opportunity. Open enrollment is the one time each year when every employee is paying attention to what you offer. That attention is rare and brief.

The best retention gains come from two things: flexible, layered offerings that employees can actually customize to their situation, and genuine two-way communication that makes employees feel heard. Neither requires a bigger budget. They require intention — and someone in leadership willing to own the process rather than hand it off entirely to HR administration.

A customizable total rewards statement, a voluntary benefit that costs the employer nothing, or a simple post-enrollment survey can shift how employees perceive their entire compensation package. CFOs and HR directors who lead this shift in 2026 will see it in their retention numbers. Those who do not will keep wondering why strong performers leave for organizations that pay less. The negotiating benefits in 2026 guide offers concrete leverage points for that conversation.

Work With a Benefits Advisor Who Understands Your Sector

Most nonprofits and healthcare organizations in the Southeast are leaving cost savings and retention value on the table during open enrollment — not from lack of effort, but from lack of a structured strategy applied at the right moment. Thrive Benefits Group works directly with CFOs and HR directors to bring benchmarking, plan analysis, and creative benefit design into your open enrollment process. Schedule a conversation to talk through your specific situation.

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Frequently Asked Questions

When does open enrollment typically occur for nonprofits in the Southeast?

Most nonprofits and healthcare organizations hold open enrollment in the fall, usually October or November, ahead of the new benefits plan year. Timing varies by organization size and fiscal calendar.

What is the average employer contribution for nonprofit health plans?

Median employer contribution ranges from 50% to 70% of total premium costs for nonprofits in 2026, consistent with prior year benchmarks.

How can nonprofits reduce benefit costs without reducing employee value?

The most effective tactics are plan migration, dependent eligibility verification, contribution strategy restructuring, and adding voluntary benefits that shift cost without reducing perceived value. None of these require cutting plan richness.

Why is behavioral health access a priority issue during open enrollment?

Behavioral health gaps in Medicaid-heavy organizations are a documented driver of employee dissatisfaction and turnover. Surfacing EAP and mental health benefits proactively during enrollment is one of the most underutilized retention levers available.

What trends matter most for 2026 benefit planning?

Family premiums are up 6% to $26,993 annually, voluntary dental enrollment has grown 78% since 2023, and SC nonprofits are raising both salaries and benefit value to stay competitive. An open enrollment checklist built on last year's assumptions is already behind the curve.