Small Group Special Enrollment Period: Start Group Health Coverage Nov 15 to Dec 15, 2026
The small group special enrollment period is a yearly window, November 15 through December 15, when a small employer that cannot meet a carrier's participation or contribution minimums can still apply for group health coverage. This guide covers who qualifies, what stays the same, deadlines, and how a Section 125 plan lowers the cost.
- Federal rules let an insurer limit small group enrollment for groups that miss participation or contribution rules to November 15 through December 15 (45 CFR 147.104).
- Outside the window, carriers often want about 70% of eligible employees enrolled (HHS SHOP guidance, 2013, and Gusto, 2025).
- The window does not waive other eligibility or underwriting rules (Word & Brown, 2026).
- Average single coverage cost $9,325 a year and family coverage cost $26,993 in 2025 (KFF Employer Health Benefits Survey, 2025).
- Some brokers set deadlines before December 15. One California and Nevada distributor set Friday, December 4, 2026 (Word & Brown, 2026).
You may have a small team and a group plan quote that asked for a participation level you cannot hit. This yearly window is built for that. It opens in a few weeks, and the practical deadline is earlier than December 15.
What is the small group special enrollment period?
The small group special enrollment period is an annual Affordable Care Act window from November 15 through December 15. A small employer that cannot meet a carrier's participation or contribution minimums can still apply for small group coverage during it.
The rule is in federal regulation 45 CFR 147.104. It says that for a small group plan that "cannot comply with employer contribution or group participation rules," an insurer "may restrict the availability of coverage" to an annual enrollment period that "begins November 15 and extends through December 15." The rule adds "as allowed under applicable State law," so states set the details.
This is an employer window. The individual special enrollment period, for people who lose coverage or have a life event, is different.
| Term | Meaning |
|---|---|
| Small group plan | A group health plan an insurer sells to a small employer |
| Participation rule | The share of eligible employees who must enroll, often about 70% |
| Contribution rule | The minimum share of the premium the employer pays |
| Special enrollment window | Nov 15 to Dec 15, when minimums can be relaxed |
Who qualifies for the small group special enrollment period?
A business qualifies when it counts as a small group in its state, usually 50 or fewer employees, and it could not meet the carrier's usual minimums. Some states define small group as up to 100 employees (Word & Brown, 2026). Gusto's 2025 guidance says the business needs at least one full-time employee.
Check yourself in four steps:
- Count full-time employees and full-time equivalents using your state's rule.
- Confirm you have at least one employee who is not an owner or an owner's spouse. Carriers treat owner-only groups differently.
- Ask whether your state lets insurers limit enrollment to this window for groups that miss minimums.
- Check whether you are an Applicable Large Employer under the ACA employer mandate. The window does not suspend those duties (Word & Brown, 2026).
Some articles say the employer does not have to contribute at all. That can be true with some carriers in some states. It is not a federal guarantee, so ask for the carrier's written rule.
What stays the same during the window?
The window relaxes participation and contribution minimums only. Carriers still check eligibility, required documents, and underwriting rules. Word & Brown says the window "does not waive other eligibility or underwriting requirements."
| Rule | Normal enrollment | Special window |
|---|---|---|
| Employee participation | Often about 70% | Usually relaxed, per carrier and state |
| Employer contribution | Set by state and carrier | Usually relaxed, per carrier and state |
| Documents and eligibility checks | Required | Still required |
| Coverage start | Varies | Generally January 1, 2027 |
Gusto's 2025 explainer says one enrolled employee can be enough to establish a plan. Treat that as a best case and confirm it with the carrier.
Why is the real deadline earlier than December 15?
Brokers and carriers need time to process applications and issue January 1 coverage, so their submission deadlines come earlier. Word & Brown set a Friday, December 4, 2026 deadline for its California and Nevada cases.
Aim to decide by late November. Gather these first:
- Federal employer ID and a business license or tax filing
- A payroll report with every employee, hire date and hours
- Employee dates of birth and ZIP codes for quotes
- A list of who may waive coverage
What does group health coverage cost a small employer?
KFF found that average annual premiums in 2025 were $9,325 for single coverage and $26,993 for family coverage. Workers paid an average of $1,440 for single and $6,850 for family. Small firms pass more family cost to workers: $8,889 on average, compared with $6,227 at larger firms (KFF, 2025).
Small firms also carry higher deductibles. KFF reports an average single deductible of $2,631 at small firms in 2025. Fifty-nine percent of firms with 10 to 199 workers offered coverage that year.
If you cannot fund a large share of the premium, the window helps. You offer the plan, and employees pay their share.
How does a Section 125 plan lower the cost of a new group plan?
A Section 125 cafeteria plan lets employees pay their share of premiums with pre-tax payroll deductions. The employer saves 7.65% in FICA on every pre-tax dollar, and employees save income tax and their own 7.65% FICA.
Example: an employee pays $400 a month toward the premium pre-tax. The employer avoids $30.60 a month in FICA on that deduction ($400 x 7.65%). These numbers are an illustration. Your savings depend on contributions and payroll.
Benecor Health sets up Section 125 plans for W-2 employers. The plan can also add benefits such as virtual urgent care and primary care. Learn the setup in the Section 125 cafeteria plan guide, and estimate your own numbers with how to calculate Section 125 savings.
What are the options if you miss the window?
If you miss December 15, normal participation and contribution rules return, and you may have to wait for the next window (Gusto, 2025). Two options exist in the meantime.
- ICHRA: The individual coverage HRA has no minimum participation rate. See the ICHRA pros and cons and the ICHRA requirements.
- QSEHRA: A reimbursement arrangement for small employers who want a tax-free allowance instead of a group plan.
What should you do before December 15?
- Confirm eligibility. Check headcount and your state's small group definition.
- Get quotes. Ask a broker for three plans and each carrier's written participation and contribution rule for the window.
- Set your contribution. Even a small employer share can raise enrollment.
- Add the pre-tax layer. Set up a Section 125 plan so employee deductions are pre-tax from the first January paycheck.
- Submit early. Send the application at least a week before the carrier's deadline.
Sources: 45 CFR 147.104 (federal regulation, Cornell Legal Information Institute copy, accessed October 2026). Word & Brown, 2026 Small Group Annual Special Open Enrollment Window guidance. Gusto, What Is the Small Group Special Enrollment Period, December 2025. HHS SHOP FAQ 30, July 2013. KFF, 2025 Employer Health Benefits Survey. IRS, employer FICA rate of 7.65%.
Frequently asked questions
- When is the small group special enrollment period in 2026?
- The small group special enrollment period runs from November 15 through December 15, 2026. Coverage from this window is generally set up to start January 1, 2027. Carriers and brokers often set earlier submission deadlines.
- Does a small business have to contribute during the window?
- Federal rule lets insurers relax employer contribution minimums for groups that cannot meet them, as allowed by state law. Whether a carrier requires any contribution depends on the state and carrier. Get the rule in writing.
- How many employees must enroll during the window?
- Outside the window, carriers often require about 70% of eligible employees to enroll. During the window, that participation minimum can be relaxed. Gusto says one enrolled employee can be enough, so confirm with the carrier.
- Can a business with one employee use this window?
- It depends on the state and carrier. Many carriers need at least one employee who is not an owner or an owner's spouse. Ask the carrier how it treats owner-only groups.
- What happens if I miss December 15?
- Normal participation and contribution rules apply again, and you may need to wait for the next window. An ICHRA or QSEHRA can cover employees meanwhile because neither has a minimum participation rate.
- Can I add a Section 125 plan to a new group health plan?
- Yes. A Section 125 plan lets employees pay their premium share pre-tax, and the employer saves 7.65% FICA on those dollars. Benecor Health can review your headcount and show the estimate.
Continue reading
- Section 125 Cafeteria Plan: The Complete Employer Guide (2026) — Section 125 Plan
The authoritative reference. POP, FSA, DCAP, IRS-qualified benefits, FICA recapture math, W-2 reporting, and the five-step employer implementation flow.
- How to Calculate Section 125 Savings — Section 125 Plan
Calculate your Section 125 savings in three steps. Use the 7.65% employer FICA formula, a worked 20-employee example, and a table of savings by election amount.
- ICHRA Pros and Cons — Health Insurance
ICHRA pros: fixed budget, no participation minimum, tax-free allowance. Cons: subsidy loss, admin work, plan gaps. See both sides and who it fits best.
About the author
Muhammad Mudassir — Co-founder & Health Tech Sales Lead
Muhammad Mudassir, who goes by Moe, is a co-founder and health technology operator focused on Section 125 cafeteria plans and zero-cost employer benefits. He has spent years getting employers enrolled in compliant cafeteria plans, onboarding nationwide workforces into the WoW Health and UnifyWell ecosystems, and translating the mechanics of FICA recapture into language that HR, finance, and ownership can act on.