The health insurance’s fixation on the Annual Enrollment Period (AEP) creates a structural blind spot: the daily flow of Americans turning 65. AEP is largely a defensive, switching market compressed into 54 days; The Initial Enrollment Period (IEP) is a steady acquisition market — roughly 11,400 net-new prospects a day — that most U.S. carriers under-staff for ten months of the year. The plans winning new Medicare members treats IEP as a growth channel with a standing licensed core, not a seasonal afterthought.
What This Means for Your Operation
- AEP and IEP are two different revenue motions. AEP defends and switches the members who already exist; IEP acquires net-new members at 65. Staffing them identically under-resources growth.
- The blind spot is daily. About 11,400 Americans turn 65 every day — roughly 4.1 million a year through 2027 — a steady acquisition pipeline an AEP-only model misses for ten months.
- IEP rewards a standing core, not a surge. First-time buyers need education, not a switch. Tenured agents who own the turning-65 conversation convert and retain far better than seasonal hires.
- New-at-65 members are long-tenure assets. Acquisition value compounds, and Medicare Advantage is projected to climb from 54% to ~64% of beneficiaries by 2034.
- A standing IEP core also de-risks AEP. You scale the seasonal surge from a stable, trained base instead of from zero.
Two Revenue Motions, One Workforce Strategy
Almost every carrier in the United States organizes its licensed force around AEP — understandably, given the 54-day spike. But that organizing principle quietly mis-classifies the business. AEP is predominantly a defensive motion: you are retaining members, fielding switchers, and reacting to plan changes within your existing book. It is essential, but it is not, for the most part, net growth. IEP is the growth motion: every person reaching 65 makes a first-time Medicare decision, and the carrier staffed to have that conversation acquires a member who may stay for a decade. Run both motions off a single AEP-shaped workforce, and the acquisition motion is the one that gets starved.
“Most carriers aim their entire licensed workforce at AEP. But AEP is defense—you’re protecting market share and competing for members already shopping. IEP is offense. Every day, more than 11,000 Americans age into Medicare and make a first-time enrollment decision. The plans that are staffed to have those conversations year-round are the ones building sustainable growth. An AEP-only model leaves a significant share of opportunity on the table,” says John Maczynski, CEO of Cynergy BPO and former EVP of the world’s largest contact center, overseeing the company’s health insurance practice.
The Blind Spot Is Daily
The scale of the aging-in market is what makes the blind spot so costly. The United States is in the middle of “Peak 65,” the largest sustained wave of Americans reaching 65 in history. The flow does not pause for the calendar; it arrives every day, and each arrival has a seven-month window to act.
In the United States, roughly 4.1 million people turn 65 each year through 2027, and the majority will weigh Medicare Advantage — a market already covering more than half of eligible beneficiaries and projected to reach about 64% by 2034. That is a large, growing, net-new acquisition opportunity arriving at a steady daily rate, almost entirely outside the AEP window most carriers are built around.
Spike Versus Annuity
The two motions even have different demand shapes, which is why a single staffing model serves them poorly. AEP is a spike to survive; IEP is an annuity to harvest.
Why IEP Rewards a Standing Core
The turning-65 conversation is fundamentally different from the AEP conversation. It is a first-time buyer who needs to understand Original Medicare versus Medicare Advantage, Part D, and supplements — education, not a quick switch. That favors a tenured, year-round licensed core that has held the conversation thousands of times, not a seasonal hire who learned the script in September. The agents who win the aging-in market are consistent, deeply familiar with the products, and available the day a prospect’s window opens — which can be any day of the year.
“The turning-65 conversation is fundamentally different from the AEP conversation. You’re not speaking with a shopper looking to switch plans—you’re guiding someone through a first-time Medicare decision. That rewards experienced, year-round licensed agents who have had that conversation thousands of times, not seasonal hires who completed training a few weeks earlier. In the aging-in market, consistency and expertise matter far more than surge capacity,” notes Ralf Ellspermann, CSO of Cynergy BPO.
The Compounding Cost of an AEP-Only Model
Under-staffing the aging-in market does not produce a visible failure the way a missed AEP lead does — which is precisely why it persists. The cost is silent and compounding: every month, a share of the roughly 340,000 people reaching 65 chooses a competitor simply because that carrier had a licensed agent ready, and you did not. Because a new-at-65 member can persist for years, each missed acquisition is not one lost sale but a lost stream of renewals and cross-sells. An AEP-only posture optimizes the defensive motion and quietly forfeits the growth one, month after month, all year.
The Blended Model: A Standing Core Plus a Seasonal Surge
The resolution is not to staff two separate workforces but to structure one correctly: a permanent, experienced licensed core sized to year-round IEP and service demand, augmented by a temporary surge layer for AEP and open enrollment. The core harvests the aging-in market all year and preserves persistence and compliance discipline; the surge absorbs the fall spike. Crucially, the standing core also makes the surge safer and faster, because you scale from a stable, trained base rather than from zero each September.
“The real advantage of a year-round IEP operation is that it also de-risks AEP. Instead of building seasonal capacity from scratch every fall, carriers can scale from a stable base of trained, licensed agents who already understand the products, systems, and compliance requirements. The most effective staffing models combine a permanent licensed core with a flexible seasonal layer. Too many plans focus exclusively on the annual spike and overlook the steady stream of enrollment opportunities that exist every day of the year,” concludes Maczynski.
Executive FAQ
How Is the IEP Opportunity Different From AEP?
AEP is a defensive, switching motion compressed into 54 days; IEP is a year-round acquisition motion of first-time enrollees at 65. They have different demand shapes, conversations, and ideal staffing models — and should not be run off one AEP-shaped workforce.
How Large Is the Year-Round Aging-In Market?
About 11,400 Americans turn 65 every day — roughly 4.1 million a year through 2027 — and most weigh Medicare Advantage, a market projected to reach ~64% of beneficiaries by 2034.
Why Staff IEP With a Permanent Core Rather Than Seasonal Hires?
The turning-65 conversation is education-heavy and rewards tenure. A standing core converts and retains the aging-in market better than seasonal hires, and it is available the day each prospect’s seven-month window opens.
Does a Standing IEP Core Help With AEP Too?
Yes. It de-risks AEP by letting you scale the seasonal surge from a stable, trained base rather than rebuilding from zero — improving both speed and compliance during the spike.
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