Keeping your federal health insurance after retirement is one of the most valuable — and most easily lost — benefits of a federal career. Here's how the rules work, what it's worth in dollars, and what happens if you leave early.
The Federal Employees Health Benefits (FEHB) Program is a voluntary health insurance program for federal civilian employees, retirees, and their eligible family members. Established in 1960, it covers approximately 8 million enrollees through over 100 participating health plans (HMOs, PPOs, high-deductible plans, and fee-for-service options).
The defining feature of FEHB is the government contribution: the federal government pays approximately 70–75% of the total premium, capped at 75% of the weighted average cost of all plans. As an active employee, your share is typically 25–30% of the premium. This subsidy is one of the most generous employer health benefits in the United States — and it continues into retirement for those who qualify.
FEHB is administered by the Office of Personnel Management (OPM). During each annual Open Season (typically November–December), enrollees can switch plans or coverage levels without a qualifying life event. This flexibility is another major advantage: you're never locked into a single plan.
To continue FEHB coverage into retirement, you must meet all three of these conditions:
The 5-year rule is the one that trips people up. It's not "5 years total at any point in your career" — it's the final 5 years, and they must be continuous. If you dropped FEHB for even one pay period during that window to try a spouse's private plan, you may have broken the chain.
Exceptions: OPM may grant waivers in limited circumstances — for example, if you were enrolled in FEHB but your agency erroneously terminated your enrollment. These waivers are rare and should never be relied upon as a planning strategy.
Time spent covered as a family member under your spouse's FEHB enrollment counts toward the 5-year requirement. So if your spouse has had FEHB for 5+ years and you're a family member on their plan, you satisfy the rule — even if you were never the primary enrollee.
When you retire with FEHB, your premium share is identical to what active employees pay. The government subsidy continues at the same rate (~70–75%). Your premiums are deducted from your FERS annuity payment each month.
Here are approximate 2025 premium ranges for popular FEHB plans:
| Coverage Level | Total Premium (avg) | Your Share (~28%) | Gov't Share (~72%) |
|---|---|---|---|
| Self Only | ~$800/mo | ~$225/mo | ~$575/mo |
| Self + One | ~$1,450/mo | ~$405/mo | ~$1,045/mo |
| Self + Family | ~$1,700/mo | ~$475/mo | ~$1,225/mo |
Premiums change each year during Open Season. The government share is capped by law at 75% of the weighted average, so if you choose a more expensive plan, your share increases proportionally. Choosing a less expensive plan (like an HMO or high-deductible plan) reduces both your share and the government's.
If you separate from federal service without meeting the 5-year FEHB enrollment rule, you cannot re-enroll in FEHB as a retiree. This is not a temporary disqualification — it's permanent. Even if you return to federal service later and re-enroll in FEHB, the clock restarts; your prior enrollment years don't carry over.
This is one of the most costly hidden risks of leaving federal service early. The loss of the government's health insurance subsidy — worth $8,000–$15,000 per year — compounds over a 25+ year retirement. In present-value terms, losing FEHB can cost you $200,000–$375,000.
The break-even calculator on this site includes the FEHB subsidy loss in its calculations precisely because it's such a large number. When people compare a private-sector offer to their federal salary, they often forget to account for the health insurance subsidy they're leaving behind.
If you're considering leaving: Check your FEHB enrollment history now. If you've been enrolled for 3 years, you need 2 more. If you've been enrolled for 1 year, you need 4 more. Factor this into your departure timeline — staying an extra year or two to clear the 5-year threshold can be worth more than a private-sector raise.
When you separate from federal service, you may be eligible for Temporary Continuation of Coverage (TCC) under FEHB. TCC allows you to keep the same FEHB plan for up to 18 months after separation.
The critical difference: under TCC, you pay 102% of the total premium — the full employee share plus the government share, plus a 2% administrative fee. Using the table above, that means:
TCC is a bridge, not a destination. It does not satisfy the 5-year rule and does not lead to retiree FEHB enrollment. It exists to prevent a gap in coverage while you find other insurance. After 18 months, it ends.
If you're weighing a private-sector job offer, confirm that the new employer's health insurance starts before your TCC period ends — or budget for ACA Marketplace coverage as a fallback.
The government's share of your FEHB premium is effectively a tax-free subsidy that continues for the rest of your life. Here's what that's worth:
| Coverage Level | Annual Gov't Subsidy | 25-Year PV (4% discount) |
|---|---|---|
| Self Only | ~$6,900/yr | ~$108,000 |
| Self + One | ~$12,540/yr | ~$196,000 |
| Self + Family | ~$14,700/yr | ~$230,000 |
These numbers assume premiums stay constant in real terms. In practice, health insurance premiums have historically grown faster than general inflation, which means the real value of the subsidy likely increases over time — making the present value even higher.
For a married couple where both spouses keep FEHB in retirement (self + one enrollment), the lifetime subsidy value can approach $375,000. This is comparable to the present value of the FERS pension itself for employees with moderate years of service.
The break-even calculator doesn't just look at your pension — it factors in the FEHB subsidy you'd lose if you leave federal service. The "break-even salary premium" it calculates is the extra private-sector income you'd need to replace both your FERS pension and the government's share of your health insurance.
This is why the break-even number often surprises people: it's not just the pension you're giving up. It's the pension plus $10,000–$15,000/year in health insurance subsidies. For a GS-13 considering a private-sector offer at $15,000 more per year, the break-even calculator may show that the offer actually leaves them worse off once FEHB is accounted for.
The calculator uses your selected FEHB enrollment type (self-only, self+one, self+family) and applies the current government contribution rate to estimate the annual subsidy. It then discounts that stream over your expected retirement years to get a present value.
If you leave federal service without retiree FEHB, your health insurance options are the ACA Marketplace, employer-sponsored insurance (if your new employer offers it), or Medicare (at age 65+). Here's how they compare:
| Feature | FEHB (retiree) | ACA Marketplace | Employer Plan |
|---|---|---|---|
| Gov't subsidy | ~72% of premium | Premium tax credit (income-based) | Varies by employer |
| Your monthly cost | $225–$475 | $400–$1,200+ | $200–$600 |
| Plan choice | 100+ plans, switch annually | Limited by state | 1–3 employer options |
| Guaranteed renewal | Yes — lifetime | Yes (but prices change) | No — tied to employment |
| Coverage if you leave job | Yes — portable | N/A | COBRA for 18 months |
The ACA Marketplace can be competitive if your income is low enough to qualify for premium tax credits. But for mid-career federal employees earning $90K–$150K, the subsidies phase out substantially, and Marketplace premiums for comparable coverage are often 2–3x what you'd pay under FEHB.
Employer-sponsored insurance from a private-sector job may look comparable on paper, but it's tied to your employment. If you leave or are laid off, you lose it. FEHB in retirement is portable and guaranteed for life — a feature that's nearly impossible to replicate in the private sector.
When you turn 65, you become eligible for Medicare. Most FERS retirees who have FEHB choose to enroll in Medicare Part A (hospital insurance, premium-free for those with 40+ quarters of Social Security coverage) and Medicare Part B (medical insurance, ~$185/month in 2025, income-adjusted).
Coordination of benefits: When you have both FEHB and Medicare, they work together. For most FEHB plans, Medicare becomes the primary payer and FEHB becomes the secondary payer. This means Medicare pays its share first, and FEHB covers some or all of the remaining costs (deductibles, coinsurance, and services Medicare doesn't cover).
Should you keep FEHB after enrolling in Medicare? For most FERS retirees, the answer is yes. FEHB covers things Medicare doesn't: prescription drugs (many FEHB plans have better drug coverage than Medicare Part D), vision, dental, and out-of-network providers. Dropping FEHB to rely solely on Medicare is generally not recommended — and if you drop FEHB, you cannot re-enroll later.
Part B late enrollment penalty: If you don't enroll in Part B when first eligible (at 65, or when your employer coverage ends) and decide to enroll later, you pay a 10% surcharge for each 12-month period you were eligible but didn't enroll. This penalty is permanent. If you have FEHB as a retiree, your FEHB is not considered "creditable coverage" for delaying Part B — so most retirees enroll in Part B on time.
If you're considering leaving federal service — whether for a private-sector job, early retirement, or any other reason — run through this checklist first:
The FEHB subsidy is one of the largest single financial assets you accumulate as a federal employee. Treat protecting it with the same seriousness you'd give to a $200,000+ investment.
The break-even calculator includes FEHB subsidy loss in every scenario.