Open Enrollment Communication Plan: Templates and Timeline for HR

Open enrollment fails in two directions. Communicate too little and employees default into the wrong plan, then spend the year unhappy about a decision they did not really make. Communicate too much in one burst and nobody reads any of it.

The fix is sequencing. A single 40-page benefits guide dropped two weeks before the deadline is not a communication plan. A staged sequence — awareness, then education, then decision support, then urgency — is, and it does not require more content. It requires the same content, released in the right order.

Start 90 Days Out

T-90 to T-60: Internal preparation

Nothing employee-facing yet. This window is for getting your own house in order.

• Finalize plan designs, carrier decisions, and contribution strategy
• Confirm rates and employee cost by tier
• Run the ACA affordability calculation against your chosen safe harbor and confirm your lowest-cost self-only option qualifies [VERIFY the current percentage]
• Test the enrollment system end to end, including the mobile experience
• Gather all required notices and confirm their content is current
• Identify what is changing and build the messaging around exactly those changes
• Brief leadership and prepare managers

The single most useful preparation step: write down what is changing, in one page, in plain language. If you cannot, employees certainly cannot work it out from a benefits guide.

T-60 to T-45: Awareness

Short, high-level, no decisions required. The goal is that nobody is surprised.

• Announce the enrollment window dates
• State whether enrollment is active or passive — and if active, say clearly and repeatedly that failing to act means losing coverage
• Preview the major changes in one or two sentences each
• Tell people where materials will live and when they arrive

Keep this to a single short message. Its job is to put dates on calendars.

T-45 to T-30: Education

Now the substance, released in pieces rather than as a single document.

• Full benefits guide published
• One message per topic, spaced out — medical plan changes, HSA and FSA, dental and vision, voluntary benefits, retirement
• Plan comparison tools and cost modeling
• Live sessions — webinars, on-site meetings, or recorded walkthroughs for shift and remote workers
• Targeted messages for specific populations: new hires, employees approaching Medicare eligibility, employees with family changes

Segment where you can. An employee enrolled in the HDHP with an HSA needs different information from one in the PPO. Generic communication to everyone is the reason engagement is low.

T-30 to T-0: Decision support and urgency

• Enrollment window opens
• Step-by-step instructions with screenshots
• Office hours, a dedicated inbox, or a benefits help line
• Weekly reminders with days remaining
• Targeted reminders to those who have not enrolled, escalating in the final week
• Manager reminders to prompt their teams, particularly for non-desk workers

T+0 to T+30: Confirmation and close

• Confirmation statements to every employee showing exactly what they elected
• Effective date and ID card timing
• Correction window for genuine errors, with a stated deadline
• What to do on January 1 if a card has not arrived
• New-plan orientation where a carrier or plan design changed materially

The confirmation statement is not optional housekeeping. It is where employees discover they elected the wrong tier, and catching that in November is trivial while catching it in March is not.

Required Notices and Their Deadlines

Distribution requirements sit alongside your communication plan and are not satisfied by mentioning them in the benefits guide.

The Medicare Part D notice is the one most commonly missed, because it has an unusual deadline unrelated to the plan year and it applies to Medicare-eligible individuals covered by the plan — including covered spouses and dependents, not just employees over 65.

Channels

No single channel reaches everyone. Match the channel to the workforce.

Reach the spouse. In a large share of households the benefits decision is made jointly or by the employee's partner, who never sees a work email. A home mailing or a household-directed portal link is frequently the highest-return item in the plan.

Equip Managers

Managers are asked benefits questions constantly and are the worst possible source of benefits advice — they will guess, and their guess will be quoted back to you.

Give them:

• A one-page summary of what is changing
• The enrollment dates and whether enrollment is active
• Answers to the five questions they will actually be asked
• A clear script for everything else: "I don't want to give you wrong information — here's the link and the benefits contact"
• Explicit instruction not to advise on plan selection, and never to comment on an employee's medical situation

That last point matters legally. A manager who learns about an employee's health condition through a benefits conversation has created knowledge imputed to the employer, with ADA implications. Train managers to route, not to counsel. See our Manager & Supervisor Training.

Writing That Actually Gets Read

• Lead with what changed. Employees scan for whether they need to do something.
• Plain language. "Deductible" needs a definition; "coinsurance maximum out-of-pocket accumulator" needs to not exist.
• Show dollars, not percentages. "Your cost goes from $142 to $156 per paycheck" beats "a 9.8% increase" every time.
• Use examples. A short scenario — a family with two office visits and a prescription, compared across two plans — teaches more than a benefits grid.
• Answer "what should I do?" Employees want a recommendation. You cannot give personalized advice, but you can describe which plan suits which usage pattern.
• Translate where a meaningful share of the workforce reads another language more comfortably.
• Make it accessible — screen-reader compatible documents, captioned videos, adequate contrast.

Measure It

Log the questions by topic during the window. That log is your content plan for next year — the topics generating the most questions are the ones your materials explained badly.

Frequently Asked Questions

How far in advance should open enrollment communication start?

Begin internal preparation 90 days out and employee-facing awareness messaging 60 days out, with education starting around 45 days and decision support in the final 30.

What is the deadline for the Medicare Part D creditable coverage notice?

Before October 15 each year, to all Medicare-eligible individuals covered by the plan — including covered spouses and dependents, not only employees over 65.

Should enrollment be active or passive?

Active enrollment produces more deliberate choices and cleaner data but requires much stronger communication, because employees who do not act lose coverage. Passive is easier but entrenches poor decisions. If you switch to active, over-communicate that specific fact.

How do we reach employees who don't use email?

Manager cascade, home mailings, text messaging with consent, posted materials, and live sessions on shift. Non-desk workforces need a fundamentally different channel mix, planned in advance.

Can managers answer employees' benefits questions?

Only the basics — dates, where to find materials, whether action is required. They should never advise on plan selection or discuss an employee's medical situation, which creates ADA-relevant knowledge for the employer.

What should we measure after open enrollment?

Completion rate and timing, plan migration against expectation, question volume by topic, post-enrollment comprehension, and correction requests. The question log is the most useful artifact for planning next year.

The Bottom Line

Sequence the same content over 90 days instead of dropping it in one burst, lead every message with what changed, show dollars rather than percentages, reach the household rather than just the employee, and equip managers to route rather than advise. Then log the questions — they tell you exactly what to fix next year.

For structured instruction, explore our Employer Benefits resources and Section 125 training, or work through the Cafeteria Plan Checklist.