The PEO Exit Playbook: 90 Days From Decision to Clean Open Enrollment

There are two ways to leave a PEO.

One is to make the decision, give 60 days notice, and discover halfway through that you missed underwriting deadlines for January 1 effective dates, that your COBRA participants don’t have continuation rights set up, and that your first payroll under the new system has misaligned FICA wage bases. The other is to work backward from your target effective date and treat the exit like a product launch — with a timeline, dependencies, and a clear owner for each phase.

The difference between the two approaches is roughly $50,000 in scrambling costs and one bad month of employee experience that your team will remember for years.

We built Heal to handle the second version end-to-end.

This is the operational playbook we run for clients exiting Justworks, Rippling, TriNet, and other PEOs. It works whether you run it yourself with a traditional broker, build internal capacity, or partner with us — but the sequencing matters either way. Below each phase, we note specifically what Heal owns for our clients, so you can see where AI-native brokerage replaces work that would otherwise sit on your HR team.

Why timing dominates everything else

Three calendars constrain a PEO exit, and they don’t align:

Carrier underwriting calendar. Health insurance carriers need 30–60 days to underwrite a new group plan. For a January 1 effective date, carriers want submissions in by mid-October. Miss that window and you’re looking at a March 1 effective date — three months of paying double or scrambling on COBRA.

Tax filing calendar. Mid-year PEO exits create split FICA wage bases (unless your PEO is CPEO-certified — Justworks is, TriNet is, Insperity is). For non-CPEO exits, the cleanest exit is January 1 to avoid duplicate wage-base contributions on employees who exceed the Social Security cap.

Your PEO’s notice window. Most PEO contracts require 60–90 days written notice before termination, with auto-renewal clauses if you miss the window. Q4 is when this trap closes on founders most often.

The intersection of these three calendars is why the right time to start planning a January 1 exit is the previous July. Most founders start in October, which is too late for the clean version.

The timeline below assumes you’re working backward from a target effective date (the day your new benefits kick in and your PEO relationship ends). Day 0 = effective date.

Day -120 to -90: Decision and partner selection

The first 30 days of an exit are about deciding what you’re moving to. Most founders compress this phase too aggressively because the decision feels obvious once they’ve decided to leave the PEO. It’s not.

Tasks owned by founder/COO:

Pull your current PEO contract and identify the notice window and any early-termination fees
Decide your post-PEO architecture: standalone broker + HRIS (Gusto, Rippling Payroll, etc.) OR new PEO OR EOR-style arrangement
If broker-led: interview 2–3 brokers, get written proposals
Run the cost analysis (see Post 2 in this series for the framework)

What you’re solving for in partner selection:

Does the broker handle compliance docs (ERISA wrap, SPD, Section 125 POP)?
What’s the employee support model — call center, dedicated rep, AI concierge?
Do they recommend level-funded vs fully insured based on your census?
Can they show you historical renewal rates from comparable clients?
What’s their fee structure — pure commission, fee-based, hybrid?

Decision artifact at end of phase: Signed letter of intent or service agreement with new broker/partner. No notice to current PEO yet.

What Heal handles in this phase. We deliver the cost analysis in roughly 48 hours from your PEO invoice and census file — no spreadsheet exercise on your side. Our team also reviews your PEO contract clause and flags the exact notice window and termination fee structure so you don’t get surprised. The decision to move with Heal happens after you see the modeled savings, not before.

Day -90 to -75: Notice and underwriting submission

Now you give notice. Most contracts require it in writing; some require certified mail. Read the contract clause — getting this step wrong can extend your PEO relationship by another 90 days.

Tasks owned by founder + new broker:

Submit written termination notice to PEO (follow contract exactly)
Request from PEO: 12 months of claims data, current census file, plan documents, COBRA participant list, FSA/HSA balances
New broker submits underwriting application to 2–3 carriers
Begin plan design conversations — what tiers, what funding type, what employer contribution

The claims data extraction is critical and often slow. Some PEOs delay or limit claims data delivery on exit; this is a known industry pattern. Push hard, in writing, and escalate if needed. Underwriters quote 15–25% better rates with claims data than without — this single document is worth tens of thousands of dollars in your renewal pricing.

What Heal handles in this phase. We submit the underwriting applications to 3–5 carriers in parallel (UnitedHealthcare, Aetna, Cigna, BlueCross, and level-funded specialists like Allstate Benefits or HealthEZ depending on geography). Our optimization platform models thousands of plan configurations against your census — the kind of analysis that used to require a benefits actuary — and surfaces the 2–3 designs that best fit your workforce. We also handle the claims data escalation with your departing PEO. By day -60 you have written quotes; by day -45 you have a final plan design.

Day -75 to -45: Compliance and ancillary lines

This is the phase where most exits run into trouble — not because anything is hard individually, but because there are 12+ separate workstreams running in parallel and no one is tracking them as a portfolio.

Workstream	What needs to happen	Typical owner
Health insurance	Carrier selection, plan design, employer contribution finalized	Broker
Dental, vision, life, disability	Ancillary carrier RFP and selection	Broker
Workers’ compensation	Standalone policy (PEO unbundles), review experience mod rate	Broker / insurance specialist
EPLI (employment practices)	Standalone policy from day one outside PEO	Broker
FSA / HSA / Commuter	New TPA selection ($500–$1,500 setup + $4–$6 PEPM ongoing)	HR / broker
401(k)	Establish own plan OR move from PEO’s multiple employer plan (~60 days, includes 30-day blackout)	HR / 401k provider
ERISA wrap document	Drafted by new broker or compliance vendor	Broker
SPD (Summary Plan Description)	Drafted and distributed to employees	Broker
Section 125 POP	Established for pre-tax premium deductions	Broker / payroll provider
ACA reporting (1094-C/1095-C)	Determine who files for the year (PEO for pre-exit period, you for post)	CFO / payroll
COBRA administration	Identify new administrator; existing COBRA participants enroll in new plan	Broker
Payroll provider setup	Tax accounts established in every state with employees	Payroll provider

Multi-state payroll tax accounts are the silent killer here. If you have employees in 12 states, you have 12 state unemployment insurance accounts to establish, plus state withholding accounts. Each takes 2–6 weeks. Start this on day -75, not day -30.

What Heal handles in this phase. This is where AI-native brokerage replaces the most operational work. Our Compliance Dashboard generates and tracks the full document set — ERISA wrap, SPD, Section 125 POP, ACA filings, COBRA notices — with automatic expiration windows and renewal reminders. We handle the ancillary RFPs, standalone EPLI quote, workers’ comp unbundling, and FSA/HSA TPA selection in one consolidated workstream. The 12-workstream portfolio above runs against a single dashboard with named owners and dates, instead of living in your inbox.

Day -45 to -15: Employee communications

This is the highest-leverage phase and the one founders most often underinvest in. Employees experience the PEO exit through three moments: when they hear about it, when they enroll, and when their first paycheck hits.

Two weeks before open enrollment opens (Day -45 to -30):

Send the announcement email. Keep it simple. Lead with what stays the same: their job, their pay, their access to care. Then explain what changes: new ID cards, new portal, new (or same) doctors.
Host a 30-minute all-hands Q&A. Address fears directly — “yes, your therapist is still covered; here’s how to verify.”
Publish a one-page FAQ in your wiki or Notion.

Open enrollment period (Day -30 to -15):

Push enrollment completion daily. Industry benchmark: only 60–70% of employees complete open enrollment without active reminders.
For each plan option, show the actual numbers — “your monthly premium on Plan A is $X, Plan B is $Y, with these tradeoffs.” Most employees pick wrong when shown only deductibles and out-of-pocket maxes.
Flag COBRA participants explicitly — they need to enroll in your new plan or transition off. If they stay on the PEO’s plan, that’s a significant per-month fee, and you may be paying it.

Critical communication element founders miss: pay frequency, pay date, and direct deposit information. If your new payroll provider uses a different cadence or pay date than the PEO, employees need to know two weeks in advance to avoid bank overdrafts. This is the kind of mistake that destroys trust in a transition.

What Heal handles in this phase. Our Plan Picker AI agent runs the enrollment for every employee individually. It walks each person through their specific options with cost projections based on their actual usage patterns (single vs family, anticipated care utilization, prescription needs), and recommends the plan that minimizes their total cost. The result across our deployments: enrollment completion rates above 95%, and the share of employees on the most expensive PPO drops from a typical 65% to around 40% — because the AI helps people pick the plan that actually fits them. The 75% reduction in HR ticket volume starts the moment Plan Picker goes live.

Day -15 to 0: Cutover

The last two weeks are about validation and contingency, not new work. By day -15, all decisions should be locked.

Verification checklist:

All new ID cards in employee hands (digital or physical) by day -7
New payroll system has been parallel-tested on day -14 (run a fake payroll, verify tax withholding matches)
COBRA participants have elected their new coverage status
HSA/FSA balances have been transferred or rolled over
PEO has confirmed final invoice and refund process for prepaid services
Workers’ comp policy is active and effective on day 0
401(k) blackout period (if any) has been communicated and is closing on schedule

On day 0: First payroll under new system runs. CFO or COO should personally verify the first payroll batch before it submits — every founder we’ve worked with has caught at least one error here.

What Heal handles in this phase. Digital insurance cards are live in the Heal employee app by day -7, so employees can show coverage at a doctor’s office or pharmacy from minute one. Our Care Navigation and Meds Finder agents are pre-loaded with the new plan’s network and formulary, so the first time an employee tries to fill a prescription or book a visit under the new plan, the AI confirms coverage in real time rather than triggering an HR ticket.

Day 0 to +30: Stabilization

The first 30 days post-exit are when everything that wasn’t fully tested surfaces.

The pattern is predictable: weeks 1–2 are about ID cards and pharmacy claims (employees show up at the pharmacy with old PEO ID, get rejected, panic, ticket flood). Weeks 3–4 are about billing and claims processing (first medical bills under the new plan arrive, employees don’t understand new EOBs).

What to monitor:

Pharmacy fills: are employees getting medications filled with new insurance?
In-network provider visits: are claims processing correctly?
HR ticket volume: should be elevated for 2 weeks, then back to baseline
Payroll tax filings: verify the first month’s filings are accurate in every state

What breaks most often:

Mid-year out-of-pocket maximums and deductibles reset (employees who already hit their PEO plan’s deductible may have to start over — confirm with your new carrier whether they accept proof of payment for the partial year)
Specialty pharmacy authorizations don’t transfer; expensive medications can hit a gap
Mental health and therapy in-network status differs between carriers; employees on long-term care need confirmation early

What Heal handles in this phase. The AI concierge absorbs the first-month spike automatically. Most “is this covered” and “where do I go” questions resolve in seconds through the app instead of becoming HR tickets. For the harder edge cases (specialty pharmacy authorization gaps, mental health continuity, balance billing disputes), our FightBack agent escalates directly to carriers and providers on behalf of the employee. By day +30, ticket volume is typically running 75% below pre-transition baseline — not just back to “normal,” but structurally lower than what the PEO model produced.

The seven most common mistakes

After enough exits, the failure modes cluster:

Giving notice before signing the new partner. Don’t. You lose negotiating leverage.
Underestimating the claims data extraction timeline. Start on day -90, not day -45.
Mid-year exits without a CPEO. Wage-base restart costs $1,000–$3,000 per employee above the SS cap.
Skipping the parallel payroll test. First-payroll errors are the most visible employee experience failure.
Treating the employee communication as a one-time email. It’s a 4-week campaign.
Forgetting EPLI. Day-one coverage outside the PEO is non-negotiable.
Not transferring HSA/FSA balances correctly. Employees lose money; trust collapses.

What a well-run exit feels like

Done right, a PEO exit is uneventful from the employee’s perspective. Same paychecks (different employer name on the stub), same doctors, slightly better benefits, much faster answers when they have a question. The HR ticket volume drops, the CFO sees the savings on the next quarterly close, and the founder forgets they ever ran a transition project.

Done wrong, it’s a months-long retention issue.

This is the work Heal was built to own. Our optimization platform handles the plan design and carrier negotiation; our Compliance Dashboard handles the document portfolio; our AI concierge handles the employee experience day one and ongoing. The founder’s job is to decide the strategic direction and sign one piece of paper. Everything else runs against a shared dashboard with named owners and dates.

The clients we’ve moved off PEOs see roughly $4,000 in savings per employee in year one, a 75% drop in HR benefits tickets, and an 80+ NPS from employees using the concierge. The bigger story is what happens in year two and three: because the optimization is continuous and the claims data is yours, costs continue to decline rather than compound upward like a PEO renewal cycle.

Heal manages PEO transitions for startups in the 30–150 employee range — including the 90-day playbook above, plus ongoing AI concierge support that means your HR team doesn’t get buried in tickets the day you cut over. The benchmark analysis is free. Talk to us about your exit timeline →