Open enrollment is the yearly window when employees can sign up for, change or drop benefits such as health insurance. Outside that window, changes are usually allowed only after specific life events.
| Situation | Can they change? |
|---|---|
| During open enrollment | Yes, any election the plan offers |
| Marriage, birth or adoption | Yes, within the special enrollment period, at least 30 days |
| Lost other health coverage | Yes, within the special enrollment period, at least 30 days |
| Just changed their mind in March | Usually no, until the next open enrollment |
| New hire | During their initial eligibility period set by the plan |
Put the special enrollment deadline in writing in your benefit materials, and use the plan’s actual number of days. See benefits administration.
A manufacturer with 45 benefit-eligible employees runs open enrollment from November 1 to 15. Last year, the forms were in the break room and six people missed the deadline, including two who wanted to add a newborn and a spouse that had lost coverage weeks earlier.
This year HR sends an announcement to each department with the dates, a one-page summary of what changed, and the enrollment form on their phones. Supervisors on the night shift get a reminder to mention it at shift start. A reminder goes out on November 10 to everyone who has not submitted.
All 45 submit by November 15. In February, one employee marries and asks to add his spouse. HR checks the plan: it allows 30 days after a marriage, so he submits within the month and coverage is added.
Hourly and shift employees often miss open enrollment because information goes out by email or at a daytime meeting. Reach them where they are: announcements to their phones by location or role, a short summary of what changed in plain language, and enrollment forms they can complete and sign on a phone.
Offer help during each shift, not just office hours. A 15-minute session at the start of evening and night shifts, or a named contact who can answer questions by phone, prevents the late forms and wrong elections that cause problems for the rest of the year.
A home care agency with 90 eligible caregivers opens a two-week enrollment window. After the first week, 38 have submitted forms.
The agency sends a reminder announcement to those who have not yet enrolled, and coordinators mention it at visit handovers. By the deadline, 86 have submitted elections or waivers, and the 4 remaining are contacted directly. No one is left without a recorded choice, and the agency keeps the list of reminders sent with its enrollment records.
Each employer or plan sets its own dates, often in the fall for a plan year starting January 1.
They usually cannot change benefits until the next open enrollment, unless a qualifying event such as marriage, birth, adoption or loss of other coverage gives them a special enrollment right.
Federal rules require at least 30 days after the event. A plan can allow longer, so check the plan documents.
Only for permitted events the plan allows, such as a change in status like marriage or the birth of a child.
Many employers use two to four weeks. Longer windows help shift workers, but the plan’s deadlines decide what is possible.
It depends on the plan. Some elections roll over; others, such as many FSA elections, must be made each year.
Announcements by location, department or role, and a company feed with surveys and read confirmations, so frontline staff see the same news.