Veterans Regret This One Thing About Buying Back Time—Here’s What They Missed

Missy E
November 14, 2025

Key Takeaways

Buying back military time can significantly enhance your federal retirement benefits—but it’s not always the right move for every veteran.
Many veterans who regret their decision often misunderstood the financial and strategic implications of the buyback timeline and long-term value.

What It Means to Buy Back Military Time

If you’re a veteran who later transitioned to a civilian government job, you likely qualify to buy back your military service time. Under FERS (Federal Employees Retirement System), this process allows you to have your active-duty military service credited toward your civilian retirement annuity.

When you buy back time, you pay a deposit equal to 3% of your military basic pay (for post-1998 service) plus interest. In return, that military time is added to your creditable service, increasing your pension calculation.

But while the benefit appears straightforward, many veterans make critical missteps.

Why So Many Veterans Regret the Decision

For many, the regret doesn’t stem from buying back the time—it’s from how they approached the process, when they did it, and the assumptions they made. Here’s where the trouble often begins:

1. Waiting Too Long Increases the Cost

The buyback process isn’t free. Interest begins accruing after a two-year grace period from your entry into federal service. That means the longer you wait beyond those two years, the more expensive the deposit becomes due to compounded interest.

In 2025, interest rates on unpaid deposits have remained around 3%, compounded annually.
Veterans who delay often end up paying hundreds or even thousands more than if they acted promptly.

By the time regret sets in, it’s often too late to go back and avoid that financial burden.

2. Not Understanding the Break-Even Timeline

Some veterans misunderstand how long they need to stay in federal service for the buyback to “pay off.”

Let’s say you pay $10,000 to buy back four years of military time. Your annuity might increase by $1,500 annually. In that case, it would take nearly seven years post-retirement just to break even.

If you retire early, leave federal service prematurely, or fail to live long enough to enjoy those extra annuity payments, the value of that buyback sharply diminishes.

3. Assuming It’s Always Worth It

Buyback isn’t automatically the right financial move. It depends on multiple variables:

Your career longevity in the federal system
Your retirement timeline
Your current financial capacity to make the payment

In some cases, veterans buy back time with money they cannot afford to part with, expecting to make it up later—only to find out their pension bump is much smaller than anticipated.

4. Overlooking the Impact on Social Security

If your military time was covered by Social Security, buying it back under FERS still counts for retirement. But you cannot double-dip.

Some veterans mistakenly believe they’ll get both full Social Security and a full FERS annuity including military time. The truth: Social Security counts your earnings, while FERS counts your service time. They’re related, but not interchangeable.

And if you were covered under CSRS instead of FERS, buying back time gets even more complicated. The rules change, and the Windfall Elimination Provision may still apply if you earned a CSRS pension without paying Social Security taxes.

5. Forgetting About Refund Restrictions

Once you buy back your time and retire, you cannot get that deposit refunded. Some veterans assume the buyback is reversible if they change their mind or their financial situation changes later.

That’s not the case.

There is no refund after retirement, and no partial credit if you don’t meet other requirements. It’s all or nothing.

Timing Is Critical to Maximizing Value

Military service buyback isn’t just a financial decision—it’s a timing decision. Here’s what you should keep in mind in 2025:

Buy Back Within the First 2 Years: This avoids interest and keeps your deposit manageable.
Do the Math Before You Commit: Use your High-3 average salary and projected retirement date to calculate the exact annuity gain.
Check the FERS Supplement Impact: If you retire before age 62, your increased service years may make you eligible for the FERS Annuity Supplement—but only if you qualify otherwise.
Don’t Wait Until You File for Retirement: The process takes time. You’ll need to get earnings records from DFAS or your branch, get a deposit estimate from your HR office, and make the payment before retirement processing begins.

The Buyback Process Can Be Slow and Frustrating

Many veterans also regret the process itself. It’s not streamlined, and delays are common.

Here’s a typical timeline in 2025:

Requesting Earnings Records (1-3 months): You must request DD 214s and military pay histories from DFAS or your military records center.
Receiving a Deposit Estimate (2-6 weeks): Your agency HR calculates the 3% deposit based on your military earnings.
Payment Process (varies): You can make a lump sum payment or request installment payments via payroll deduction.
Confirmation (2-3 months): OPM confirms the deposit and updates your service record.

That means the entire process may take six months or more. Veterans who wait until just before retirement are often caught off guard when their annuity calculation doesn’t include the time they thought would be credited.

Retirement Calculations That Catch Veterans Off Guard

One of the most common misunderstandings lies in how the annuity is calculated.

For FERS, the formula is:

1% of High-3 Average Salary × Years of Creditable Service
1.1% if you retire at age 62 or later with at least 20 years of service

That means four years of added service from military time could increase your annuity by:

$1,600 annually if your High-3 is $40,000
$2,800 annually if your High-3 is $70,000
$4,400 annually if your High-3 is $100,000

But that assumes you retire with full eligibility. Retiring under MRA+10 or leaving before eligibility could significantly reduce the impact of that buyback.

FERS Supplement Eligibility Misunderstood

If you retire before age 62 and qualify for a full unreduced pension, you may also be eligible for the FERS Annuity Supplement.

This supplement mimics the value of Social Security benefits you’d receive at 62—but only for FERS service years.

Military service time you buy back does count toward eligibility for the supplement—but it does not increase the payment amount. This is a commonly misunderstood detail.

Factors That Can Lead to Regret

Let’s summarize the top mistakes veterans make in this process:

Miscalculating how long they’ll stay in federal service
Overestimating the value of added annuity income
Waiting too long and accruing excessive interest
Assuming it increases both pension and Social Security
Not understanding the finality of the deposit

What You Should Do Now

If you’re considering buying back time in 2025, take these steps:

Get your earnings history from DFAS now.
Run a detailed annuity projection using your High-3 average and retirement goals.
Contact your HR benefits officer and request a buyback estimate.
Consult a licensed professional listed on this website for personalized advice.

Smart Planning Can Avoid Long-Term Regret

Military service is honorable—and when combined with civilian government work, it can offer powerful retirement advantages. But only when used wisely.

Buying back military time should be part of a broader retirement strategy, not a hasty financial decision.

If you take the time to understand your break-even timeline, calculate your annuity increase, and explore how long you plan to stay with your agency, you can make a confident, informed decision.

For peace of mind, get in touch with a licensed professional listed on this website to ensure you’re making the right choice for your financial future.