Key Takeaways
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Miscalculating your FERS annuity and retirement benefits can lead to financial shortfalls.
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Failing to plan for healthcare costs and Social Security timing may result in unexpected expenses.
Underestimating Your FERS Annuity and Retirement Income
Many FERS employees assume their pension will fully cover their retirement expenses, but that’s not always the case. The FERS retirement system is designed as a three-part structure consisting of the FERS Basic Benefit, Thrift Savings Plan (TSP), and Social Security
- Also Read: Divorce and Your Federal Pension—What Happens When You Split Assets and How It Could Affect Your TSP
- Also Read: What Happens to Your Federal Benefits After Divorce? Here’s the Lowdown
- Also Read: The Best FEHB Plans for 2025: Which One Fits Your Lifestyle and Budget the Best?
Understanding Your High-3 Calculation
Your FERS Basic Benefit is determined by your High-3 average salary—your highest-earning consecutive three years of federal service. Some employees mistakenly believe their annuity is based on their final salary, leading to an overestimation of their monthly pension.
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If you plan to retire soon, ensure you review your High-3 average salary calculation to get an accurate estimate of your annuity.
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Your annuity formula varies depending on your years of service and retirement age. For example:
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Under age 62 with at least 30 years: 1% of your High-3 per year of service.
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Age 62 or older with at least 20 years: 1.1% of your High-3 per year of service.
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Failing to account for these differences could leave you with a lower pension than expected.
The Role of TSP in Your Retirement Income
While your FERS annuity provides a steady source of income, it’s often not enough to cover all expenses. That’s why maximizing your Thrift Savings Plan (TSP) is critical.
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The TSP contribution limits for 2025 are $23,500, with an additional $7,500 catch-up contribution for employees aged 50 and older.
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If you don’t contribute enough to your TSP throughout your career, you may not have sufficient savings to supplement your annuity.
Many retirees also miscalculate how long their TSP savings will last. If you plan to withdraw a certain percentage annually, ensure that your withdrawal rate aligns with your life expectancy to avoid running out of funds too soon.
Failing to Plan for Healthcare Costs
One of the biggest financial pitfalls in retirement is underestimating healthcare expenses. Many federal employees assume their Federal Employees Health Benefits (FEHB) Program will remain unchanged in retirement, but there are a few factors you need to consider.
FEHB and Medicare Coordination
If you retire at age 62 or later, your FEHB benefits continue into retirement. However, when you turn 65, you’ll need to decide whether to enroll in Medicare Part B.
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If you enroll in Medicare Part B, you’ll pay an additional monthly premium, but your out-of-pocket healthcare costs may be lower.
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If you skip Part B, your FEHB plan will continue covering you, but you might face higher cost-sharing requirements.
Many retirees regret not budgeting for Medicare premiums, leading to unexpected healthcare expenses. Additionally, healthcare costs tend to rise with age, so it’s wise to factor in long-term medical expenses when planning for retirement.
Long-Term Care Costs Are Often Overlooked
Long-term care is another area that FERS employees frequently neglect. While FEHB covers routine medical care, it does not cover extended long-term care services, such as assisted living or in-home care.
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The cost of long-term care can exceed $100,000 per year, depending on the level of care required.
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Without a plan, these expenses can rapidly deplete your retirement savings.
Consider exploring long-term care insurance options or setting aside additional savings to cover these potential costs.
Mismanaging Social Security Benefits
Social Security is an essential part of your FERS retirement package, but choosing when to claim your benefits significantly impacts your long-term financial security.
When Should You Claim Social Security?
Your Social Security benefits are available starting at age 62, but claiming them early results in a permanent reduction of your monthly payments. If you wait until your Full Retirement Age (FRA)—which is 67 for those born in 1960 or later—you’ll receive your full benefit amount.
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If you delay claiming until age 70, your benefit increases by about 8% per year due to delayed retirement credits.
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Claiming too early could reduce your lifetime earnings by tens of thousands of dollars.
The Impact of the Social Security Earnings Limit
If you retire and claim Social Security before your Full Retirement Age, you’ll be subject to the Social Security earnings limit if you continue working. In 2025, this limit is $23,400.
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If you earn above this threshold, your benefits will be reduced by $1 for every $2 earned over the limit.
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Once you reach Full Retirement Age, the earnings limit no longer applies.
Many federal retirees fail to factor in the earnings limit, leading to unexpected reductions in their Social Security benefits. If you plan to work part-time in retirement, ensure that your income doesn’t exceed the limit to avoid unnecessary penalties.
Making Smart Decisions for a Secure Retirement
Planning for FERS retirement is about understanding how each component of your benefits package fits together. Avoiding common mistakes—such as miscalculating your annuity, overlooking healthcare costs, and claiming Social Security too early—can help ensure you have a stable and comfortable retirement.
To make the best decisions for your future, consider speaking with a licensed agent listed on this website who can help you navigate your retirement options and avoid potential financial surprises.
