3 Key Differences Between TRICARE and FEHB That Military Retirees Need to Understand

Missy E
November 14, 2025

Key Takeaways

Military retirees choosing between TRICARE and the Federal Employees Health Benefits (FEHB) Program should understand differences in eligibility, coverage options, and out-of-pocket costs.
TRICARE offers comprehensive coverage tailored for military families, while FEHB provides a wider range of plan choices, including options for federal civilian retirees.
Choosing between TRICARE and FEHB depends on factors like your preferred healthcare network, retirement plans, and how you want to coordinate with Medicare at age 65.

Understanding Your Healthcare Options as a Military Retiree

If you’re a military retiree, you have two major health coverage options: TRICARE

and the Federal Employees Health Benefits (FEHB) Program. Both programs offer excellent benefits, but they cater to different groups and have distinct eligibility rules, coverage structures, and cost-sharing models. Picking the right one can impact your long-term healthcare expenses and coverage flexibility.

Understanding the key differences will help you make an informed decision that aligns with your medical needs, lifestyle, and financial planning. Whether you want low-cost coverage with military healthcare access or the flexibility to choose civilian providers, knowing what each plan offers is crucial. Let’s break down the three major differences between TRICARE and FEHB.

1. Who Qualifies for TRICARE vs. FEHB?

TRICARE: Designed for Military Retirees and Families

TRICARE is exclusively available to military retirees, active-duty service members, and their eligible dependents. If you served in the uniformed services and retired with at least 20 years of service, you qualify for TRICARE. Some additional groups, like Medal of Honor recipients and certain National Guard and Reserve retirees, may also be eligible.

Once you turn 65, you transition to TRICARE For Life (TFL), which works as secondary coverage to Medicare. If you’re under 65, TRICARE offers different plan options based on whether you are still working or not.

TRICARE also extends eligibility to surviving spouses and children of military retirees, ensuring that dependents have continued access to healthcare benefits.

FEHB: Available to Federal Employees and Retirees

FEHB is designed for federal civilian employees and retirees, but military retirees who take a federal civilian job after leaving the military may also become eligible. Unlike TRICARE, FEHB does not end at 65—you can keep it as long as you pay the required premiums.

FEHB covers a broad range of civilian federal employees, including postal workers, executive branch employees, and members of Congress. Spouses and dependents of FEHB-covered employees can also enroll, offering an additional layer of security for families.

If you qualify for both TRICARE and FEHB, you’ll have the option to enroll in one or the other—or even both, depending on your needs and how you want to coordinate coverage.

2. Differences in Plan Choices and Coverage Flexibility

TRICARE: Standardized Plans with Military-Specific Coverage

TRICARE offers fewer plan options compared to FEHB. It includes:

TRICARE Prime (managed care similar to an HMO)
TRICARE Select (flexible fee-for-service plan)
TRICARE For Life (for those on Medicare)
TRICARE Reserve Select (for National Guard/Reserve members)

TRICARE plans cover most medical services, including hospitalization, prescription drugs, and preventive care. However, access to civilian providers can sometimes be limited, depending on location and network availability. You may also need referrals for specialty care, particularly under TRICARE Prime.

One thing to consider is that TRICARE primarily serves military families, meaning that many of its providers and facilities are centered around military installations. If you live far from these locations, your provider options may be more restricted.

FEHB: A Wide Range of Private Insurer Plans

FEHB offers a broad selection of private health insurance plans, including HMO, PPO, and high-deductible health plans (HDHPs). Each plan has its own provider network, coverage benefits, and cost-sharing structure.

One of the biggest advantages of FEHB is the flexibility to switch plans during Open Season each year (usually from mid-November to mid-December). If you find a plan isn’t meeting your needs, you can adjust coverage annually.

FEHB also allows enrollees to access national networks of civilian doctors and hospitals, which may provide better coverage for those who require specialized medical care. The ability to choose from multiple carriers and benefit structures makes FEHB a highly adaptable option for retirees.

3. Cost Structure: Premiums, Deductibles, and Co-Pays

TRICARE: Lower Out-of-Pocket Costs but Fewer Plan Choices

TRICARE generally has lower out-of-pocket costs than FEHB, especially for retirees who stay within the network. However, some TRICARE plans come with annual enrollment fees, copayments, and cost-sharing for certain services.

TRICARE’s cost structure varies based on the plan you choose. For instance, TRICARE Prime has lower out-of-pocket costs but requires referrals for specialists. TRICARE Select offers more flexibility but comes with higher cost-sharing.

At age 65, TRICARE For Life becomes your secondary coverage to Medicare Part B, covering most remaining costs after Medicare pays its share. This means most out-of-pocket costs are minimal, making it an attractive option for those relying on Medicare.

FEHB: Higher Premiums but More Coverage Options

FEHB tends to have higher monthly premiums, but costs vary significantly by plan. Some FEHB plans offer better coverage for civilian healthcare providers and may have lower out-of-pocket maximums compared to TRICARE in certain situations.

One major difference is that FEHB does not require Medicare enrollment at 65, although many retirees choose to enroll in both FEHB and Medicare to minimize out-of-pocket expenses. Having both means that Medicare will pay first, and FEHB will serve as secondary insurance, reducing your personal expenses.

FEHB premiums are typically deducted from your annuity, making it an automatic process that doesn’t require direct payments unless you’re not receiving a federal pension.

Making the Best Choice for Your Retirement Healthcare

Both TRICARE and FEHB offer strong healthcare benefits, but they serve different needs. TRICARE is ideal for military retirees who want low-cost coverage within a military-focused system, while FEHB provides more flexibility and access to a broader range of civilian providers. If you qualify for both, carefully weigh the pros and cons based on your medical needs, preferred doctors, and long-term healthcare plans.

To explore your best option, consider speaking with a licensed agent listed on this website. They can help you navigate your choices and ensure you have the right coverage for your retirement needs.