Open enrollment for small business is the annual window when your team elects health insurance and other benefits, and for the leadership team it is one of the largest controllable spend decisions of the year. Benefits usually sit right behind payroll on the P&L, yet most companies treat enrollment as HR paperwork that starts thirty days before the deadline. Run it like an operator instead: set the strategy ninety days out, model the cost, and communicate it like a product launch.
What is open enrollment, from the operator’s seat?
Open enrollment is the once-a-year period, typically two to four weeks ahead of your plan’s renewal date, when employees can join, drop, or change their benefit elections without a qualifying life event. That is the employee’s view. From the leadership team’s seat, open enrollment is four decisions stacked together: whether to keep or re-shop your carrier, how to design the plan menu, how to split the premium between company and employee, and how to communicate all of it so people actually understand what they are choosing.
Get those four right and benefits become a retention asset you control. Get them wrong and you either eat a double-digit renewal increase or quietly shift cost onto employees who discover it at the pharmacy counter. Both outcomes are decided months before anyone fills out a form.
The 90-day open enrollment playbook
1. Make it a 90-day priority with one owner
Open enrollment fails when it is everyone’s job and no one’s priority. Ninety days before your renewal date, assign it to one member of the leadership team, usually whoever owns finance or people, and treat it like a quarterly Rock with milestones: renewal numbers in hand by day 30, plan decision made by day 60, enrollment closed by day 85. And if your plan year renews near your fiscal year, fold the benefits decision into your annual planning session, because the budget you set there has to carry the number you commit to here.
2. Make your broker earn the renewal
Your renewal letter is an opening offer, not a verdict. Ask your broker for three things every year: the incumbent carrier’s renewal, at least two competing market quotes on comparable plan designs, and one alternative funding option. Level-funded plans, for example, can save a healthy small group meaningful money versus fully-insured rates. A broker who shows up with only the incumbent’s renewal is a mail carrier, not an advisor. If yours will not market the plan, it may be time to market the broker.
3. Model the cost like a CFO
Before you open a single plan brochure, know your numbers: total annual premium, the company’s share, the per-employee monthly cost, and what a given percentage increase does to next year’s budget. Then work your three levers. Plan design changes the price of the product. Contribution strategy changes who pays for it; anchoring the company contribution to a percentage of the lowest-cost plan, rather than a percentage of whatever each employee picks, caps your exposure while preserving choice. And the plan menu itself is a lever, because adding a lower-cost option gives cost-sensitive employees somewhere to go. This is exactly the kind of decision a fractional COO or CFO earns their keep on: it is a spreadsheet problem before it is an insurance problem.
4. Design the plan menu deliberately
The classic small-company menu is a base plan plus one buy-up. Understand what each plan type trades away. HMOs are cheaper but lock employees to a network and referrals. PPOs cost more in exchange for flexibility. High-deductible health plans (HDHPs) carry the lowest premiums and unlock HSA eligibility, but they only work when employees understand them, ideally with the company seeding the HSA to soften the deductible.
Evaluate every option on total cost, not premium alone: deductibles, copays, the out-of-pocket maximum, whether your team’s doctors are in network, and whether common prescriptions sit on the formulary. A cheap premium attached to a $9,000 family deductible is not cheap for the technician earning $58,000.
5. Communicate it like a launch
Cost shifts that surprise employees destroy more goodwill than they save in premium. Announce the enrollment dates early, hold one short all-hands walkthrough, and hand out a one-page comparison showing each option’s per-paycheck deduction, deductible, and out-of-pocket maximum side by side. Teach the total-cost math, because most people pick plans on paycheck deduction alone and regret it in March. Then set a hard election deadline with two reminders; chasing stragglers the night before the carrier cutoff is an unforced error.
6. Close the loop
After the window closes, verify that every election reached the carrier and that every payroll deduction matches the elected plan; a payroll mismatch is the most common post-enrollment mess. Document what you decided and why. Then drop the open items, broker performance, employee questions, plan complaints, onto an issues list your leadership team actually revisits. Open enrollment repeats every year, so this year’s friction should become next year’s checklist.
A worked example: a 35-person firm facing a 14% renewal
Take a 35-person commercial services company doing $6M in revenue. Its current PPO costs $580 per employee per month, roughly $243,600 a year in total premium, with the company paying 70%, about $170,500. The renewal lands at +14%: $34,000 of new cost, $23,900 of it on the company’s side, in a year the leadership team budgeted 5% for benefits inflation.
Instead of auto-renewing, the team runs the playbook. The broker markets the plan and comes back with a level-funded quote at +6% on a comparable PPO, plus an HDHP option at $455 per employee per month. The team keeps the PPO as the buy-up, adds the HDHP as the base plan, seeds each HDHP enrollee’s HSA with $750, and anchors the company contribution at 75% of the HDHP rate.
Twelve of the thirty-five employees choose the HDHP. Blended company cost lands about $9,000 above the prior year, a roughly 5% increase instead of 14%, while HDHP electors see their paycheck deduction drop and PPO holders see a modest, clearly explained bump. Nobody is surprised, because the one-page comparison and the all-hands happened three weeks before the deadline.
Common open enrollment mistakes leadership teams make
Most open enrollment damage is self-inflicted, and it follows the same patterns:
- Starting thirty days out. There is no time to market the plan, so you accept the renewal by default and call it a decision.
- Auto-renewing for years. Carriers price inertia. Groups that never shop drift above market a few points at a time.
- Choosing on premium alone. The cheapest premium often carries the highest total employee cost once deductibles and out-of-pocket maximums are counted.
- Building the menu around the owner. A plan tuned for a 55-year-old founder rarely fits a team whose average age is 32. Design for the census, not the corner office.
- Shifting cost silently. A higher deductible with no explanation reads as a pay cut, and the resentment costs more than the savings.
- Ignoring compliance. Required notices still apply to small groups, and as you approach 50 full-time equivalents the ACA employer-mandate rules change the math. Get ahead of that threshold, not surprised by it.
FAQ
When should a small business start preparing for open enrollment?
Ninety days before the plan renewal date. That leaves time to receive the renewal, get competing market quotes, decide plan design and contribution strategy, and still give employees two to three weeks to enroll. Teams that start thirty days out almost always accept the renewal as-is.
How much should a small business contribute toward health insurance premiums?
Most small companies cover 50% to 80% of the employee-only premium. A disciplined approach is to anchor the contribution to your lowest-cost base plan, for example 75% of the base plan rate, so the company’s exposure is capped while employees who want richer coverage can buy up with their own dollars.
Should a small business offer more than one health plan option?
Once you pass roughly 15 to 20 employees, a two-option menu works well: a lower-cost base plan such as an HDHP plus a richer PPO buy-up. That fits more of your census without exploding administration. Beyond three options, employee confusion usually outweighs the value of extra choice.
What is the difference between an HMO, a PPO, and an HDHP for a small employer?
An HMO trades a narrow network and referral requirements for lower premiums. A PPO costs more but covers out-of-network care with no referrals. An HDHP carries the lowest premium and a higher deductible, and it makes employees eligible for an HSA. Compare them on total expected cost for your actual team, never on premium alone.
