FEHB Premium Costs in Retirement: What Federal Retirees Actually Pay

How the Government Share Works

Federal retirees get the same FEHB premium-sharing formula as active employees. The government contributes the lesser of 75% of the total premium or 72% of the weighted average of all FEHB plan premiums. In practice, this works out to the government paying roughly 72–75% and the retiree paying 25–28%.

This is one of the most generous employer health subsidies in the country — comparable to what large private employers offer active workers, and far better than what most private-sector retirees receive (which is typically nothing).

The catch is that you pay 25–28% of a premium that increases every year.

What Retirees Pay Per Month in 2026

FEHB premiums vary widely by plan and enrollment type. Here are representative 2026 biweekly retiree costs for popular plans:

• BCBS Standard Self Only: approximately $90–110 biweekly ($195–240/month)
• BCBS Basic Self Only: approximately $60–80 biweekly ($130–175/month)
• GEHA Standard Self Only: approximately $55–75 biweekly ($120–165/month)
• BCBS Standard Self Plus One: approximately $195–230 biweekly ($425–500/month)

These are the retiree share — the total premium is roughly four times higher, with the government picking up the rest. Exact amounts shift each plan year, and OPM publishes updated premium tables every September before Open Season.

How Premiums Are Deducted

For active employees, FEHB premiums are deducted pre-tax from each paycheck. For retirees, premiums are deducted from the monthly annuity payment — but the tax treatment changes.

CSRS retirees pay FEHB premiums with after-tax dollars. The premiums are deducted from the annuity, but they are not pre-tax. However, CSRS retirees can deduct health insurance premiums on Schedule A if they itemize deductions (subject to the 7.5% AGI threshold for medical expenses).

FERS retirees also pay with after-tax dollars in retirement. The pre-tax payroll deduction benefit ends on your last day of active employment.

During the interim pay period — typically 3 to 5 months while OPM processes your claim — premiums are not deducted at all. OPM sends interim payments at roughly 60–80% of your estimated annuity, and health premiums are reconciled retroactively once your claim is finalized. This means a lump-sum deduction for 3–5 months of premiums hits your annuity once OPM completes processing.

Plan for this. Set aside the equivalent of three months of premiums from your annual leave payout or savings so the retroactive deduction does not create a cash-flow crunch.

Why Premiums Keep Rising

FEHB premiums have increased an average of 4–7% per year over the past decade, roughly double the rate of general inflation. Three structural factors drive this:

Medical cost inflation runs persistently higher than CPI. Hospital negotiated rates, specialty drug costs, and provider consolidation all push underlying costs up.

Risk pool aging. As younger federal employees leave government service and fewer new hires replace them, the FEHB risk pool skews older. Older enrollees use more healthcare services, which pushes premiums up for everyone.

Medicare Part D EGWP integration. Starting in 2024, OPM directed FEHB carriers to integrate Medicare Part D benefits via Employer Group Waiver Plans. While this created an out-of-pocket cap on prescription drugs for Medicare-eligible retirees ($2,000 in 2025, approximately $2,100 for 2026), the integration mechanics have shifted costs within the premium structure.

COLAs vs. Premium Growth

FERS COLAs use a "diet" formula — if CPI inflation runs between 2% and 3%, the COLA is 1 percentage point less than inflation. In 2026, the FERS COLA was 2.0% while FEHB premiums for many plans increased 5–7%.

Over time, this gap erodes purchasing power. A FERS retiree's annuity grows slower than their health insurance costs. After 15–20 years of retirement, FEHB premiums can consume a meaningfully larger share of the annuity than they did at separation.

CSRS retirees fare better on this metric because they receive the full CPI COLA (2.8% in 2026), but even full CPI adjustments trail healthcare inflation.

Strategies to Manage Premium Growth

Downgrade your plan tier after enrolling in Medicare. Once Medicare becomes primary at age 65, your FEHB plan shifts to secondary coverage. Many retirees switch from a High Option plan to a Basic or Standard tier during Open Season — the lower premium makes sense because Medicare is handling the bulk of medical costs. Several major plans (BCBS Basic, GEHA Standard, Aetna Direct) waive deductibles and copays entirely when Medicare Part B is primary.

Compare plans annually during Open Season. FEHB premiums and benefits change every plan year. A plan that was the best value three years ago may not be today. OPM publishes comparison tools, and the Consumers' Checkbook Guide runs independent cost estimates.

Factor premium growth into retirement financial planning. A common planning assumption is 5% annual premium growth. At that rate, a $200/month retiree premium becomes roughly $530/month after 20 years.

The FEHB & Medicare Coordination Guide includes a plan-by-plan analysis of how major FEHB carriers coordinate with Medicare, showing exactly which plans waive cost-sharing — so you can identify the lowest net cost once Medicare is primary.

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