Free guide + printable checklist
Open Enrollment Guide & Best Practices
A 90-day playbook to run a clean, high-participation annual enrollment — timeline, required notices, communication cadence, and the ACA/ERISA calendar. Built from 20+ years of California renewals by the Blue Ocean bench.
- 90/60/30-day timeline
- Required-notice checklist
- Communication cadence that lifts participation
- Post-OE audit & reconciliation
The 90-day OE timeline
Great open enrollments aren't lucky — they're managed like a product launch. Here's the cadence we run for our California employer clients from renewal kickoff to post-OE audit.
90–60 days out
- Confirm renewal date and refresh census (active, waived, COBRA, LOA).
- Set renewal goals: cost target, contribution strategy, participation lift.
- Model alternate plan designs, HSA/HRA/FSA scenarios, network changes.
- Test ACA affordability for 2026 against the lowest-cost employee-only plan.
60–30 days out
- Lock plan lineup, rates, and employer contribution strategy.
- Update Section 125 plan doc; refresh SBC, SPD, SAR, Medicare Part D notices.
- Build the communication plan — kickoff email, benefits guide, decision-support tool.
- Load plans in ben-admin / HCM and run a full test election cycle end-to-end.
OE window (2–3 weeks)
- Day 1 announcement with a clear headline, deadline, and where-to-get-help.
- 3+ reminders (day 1, midpoint, 48-hour). Segment the not-yet-enrolled.
- Host 2+ live sessions at different times and post recordings.
- Daily dashboard: completion %, waivers, HSA elections, EOI, dependent docs.
After OE closes
- Reconcile carrier invoices line-by-line for the first two billing cycles.
- Push EDI files, confirm effective dates, verify payroll deductions.
- Distribute confirmation statements with a defined correction window.
- 30-day debrief: what worked, what didn't, what to change next year.
What high-participation employers do differently
Product-launch mentality
Single owner, weekly stand-ups, one dashboard, one deadline.
Decision-support tools
Jellyvision, Nayya, Picwell — participation and HSA adoption climb.
Lead with value in dollars
Show employer contribution in $, not just premium change.
Segment communications
Different email to enrolled vs not-yet vs waived. Manager talking points.
Bundle voluntary
Accident, hospital, critical illness, pet, legal, ID — low cost, high perceived value.
Measure everything
Enrollment %, HSA adoption, EAP awareness, NPS on the OE process itself.
Authoritative resources & references
Cross-reference the primary sources we build against. Every claim in our checklist ties back to a federal or California agency publication.
U.S. Department of Labor — EBSA
ERISA compliance, notices, Form 5500, SBCs.
IRS — Affordable Care Act for Employers
1094-C / 1095-C, affordability, PCORI, Section 125.
CMS — Creditable Coverage & RxDC
Medicare Part D disclosures, RxDC reporting.
Covered California for Small Business
CA small-group SHOP marketplace.
CA EDD — SDI & Paid Family Leave
State-run wage replacement programs.
CA Civil Rights Department
CFRA, PDL, reproductive-loss and bereavement leave.
CA Labor Commissioner — Paid Sick Leave
CA sick leave accrual, caps, and local ordinances.
CalSavers Retirement
Mandatory state retirement program for employers without a plan.
SHRM Open Enrollment Toolkits
Benchmark communication templates and playbooks.
HealthCare.gov Small Business (SHOP)
Federal small-business coverage resources.