FEHB Five-Year Rule: Avoid Losing Costly Retiree Coverage 2026

The short answer: The FEHB five-year rule requires enrollment in the Federal Employees Health Benefits program for the five years right before you retire, or since your first chance to enroll. Miss the FEHB five-year rule and you lose one of the most valuable federal benefits. For most retirees, no exception applies.

Keeping FEHB in retirement is worth more than almost any benefit besides the pension. Yet a timing requirement quietly disqualifies people who did not plan ahead. The FEHB five-year rule is that requirement. Learn it years before your retirement date, and you protect the coverage for life.

Key takeaways

• The FEHB five-year rule requires enrollment for the five years right before retirement, or since your first chance to enroll (OPM).
• You must also retire on an immediate annuity to carry FEHB into retirement.
• Coverage under TRICARE or a spouse’s FEHB plan generally counts, if you hold an FEHB plan at retirement.
• There is no partial credit. Four years and eleven months does not qualify, and waivers are rare.
• The government keeps paying its share of your premium in retirement, roughly 70% on average. That is why the benefit matters so much.

What is the FEHB five-year rule for retirement?

The rule has two parts. First, you must retire on an immediate annuity. That means your pension starts right away, not later. Second, you must have held an FEHB plan for the five years of service that end on your annuity start date. If your eligibility is shorter than five years, you must have been enrolled for that entire period.

OPM applies this test strictly. Its purpose is simple. It stops people from enrolling at the last minute just to lock in lifetime coverage. Because the rule offers almost no flexibility, the safe path is clear. Enroll early. Stay enrolled through your final five working years.

What kinds of coverage count toward the five years?

The rule is about continuous coverage, not a single plan. You can switch FEHB plans during Open Season. You can move between self-only and family coverage. You can change carriers. The clock keeps running through all of it.

Time as a family member on a spouse’s FEHB enrollment also counts. So does coverage under TRICARE, which matters for many military retirees who later work as civilians. In that case, you must hold an FEHB plan on the day you retire. The TRICARE years can then fill the five-year window. This links closely to the choice to suspend FEHB when you have TRICARE, a related but separate decision.

How the FEHB five-year rule connects to Medicare

Meeting the rule does not force you to drop FEHB at 65. Many retirees keep FEHB and add Medicare. They use the two together to cut out-of-pocket costs. That coordination is where the long-term value shows up. It deserves study alongside your FEHB and Medicare Part B decision.

Fail the five-year test, though, and none of those options exist. You simply lose FEHB at retirement. So treat the rule as a countdown you start early. Do not treat it as a box to check in your final year. Employees with a break in service sometimes lean on temporary continuation of coverage. That option helps in a gap, but it does not replace the five-year requirement.

Who is most at risk of missing the rule?

A few groups need to watch the calendar closely. New federal employees who declined FEHB to stay on a spouse’s private plan may start the clock late. Employees who dropped FEHB during a tight budget year can create a dangerous gap. And late-career hires may simply run out of runway before five years pass.

Each of these situations is fixable with early attention. The key is to check your enrollment history well before you set a retirement date. If you find a gap, you still have time to fix your timeline. Discovering the problem in your final year is far harder to solve.

What happens if you postpone your annuity?

The immediate-annuity requirement raises a common question. What if you separate before your pension can start? Some employees leave under the MRA+10 provision and postpone their annuity to reduce an age penalty. In that case, FEHB does not simply continue.

Instead, your coverage can be suspended while the annuity is postponed. When the annuity later begins, you may re-enroll in FEHB. You still must have met the five-year test at separation. So the rule follows you even through a postponed retirement. Anyone weighing that path should confirm the details with their agency before leaving.

How to protect your five-year clock

Treat continuous enrollment as the goal. Avoid dropping FEHB during a tight budget year unless you truly must. If a spouse’s plan looks cheaper for a while, remember the long-term cost of a coverage gap.

Keep your own records too. Save Open Season confirmations and enrollment notices. If you ever change agencies, verify that your enrollment transferred without a break. A short lapse can be easy to miss on a pay statement. Catching it early gives you time to correct your retirement timeline and still meet the FEHB five-year rule.

Why does the rule exist at all?

The logic is about fairness to the system. FEHB is heavily subsidized. The government pays a large share of every premium, in retirement as well as at work. Without a rule, someone could enroll on their last day and claim that subsidy for life.

The five-year test blocks that shortcut. It ties lifetime coverage to a real period of participation. Once you see the rule this way, the strict enforcement makes sense. It also explains why waivers stay rare. The requirement protects a benefit that millions of retirees depend on.

Frequently asked questions

What is the FEHB five-year rule in simple terms? You must hold FEHB for the five years right before retirement, or since you first became eligible. You must also retire on an immediate annuity. Then coverage continues for life.

Does switching plans reset the five years? No. Changing plans, carriers, or enrollment type during Open Season does not break continuous coverage. Only a true gap causes a problem.

Does TRICARE count toward the five years? Yes, in general. You just need to hold an FEHB plan on your retirement date. The TRICARE years can fill the window.

Can OPM waive the requirement? Waivers are rare. OPM grants them only in limited cases. Most employees should assume no exception applies.

What if I am one month short? There is no partial credit. Falling short by even a month usually means you cannot carry FEHB into retirement. Timing your retirement date carefully is essential.

Protect your health coverage before you retire

The FEHB five-year rule is unforgiving. It is also easy to meet with early planning. Fed Pilot’s free federal retirement workshops help you confirm your enrollment timeline and coordinate FEHB with Medicare. You will learn how to read your enrollment history and spot any gap before it costs you. The earlier you check, the more options you keep. Register for a free Fed Pilot workshop and make sure your coverage follows you into retirement.

Sources: OPM FEHB plan information; OPM Retirement Center.