The end of the year is a very popular time for federal employees to retire. However, many choose to retire in other months of the year for various reasons. Perhaps you reach full eligibility in March or simply decide to call it quits in September. Are you curious how your last year of work might affect your Thrift Savings Plan (TSP) balance?
Whatever the time (or reason) you retire, there are several important questions that come to mind regarding the TSP. These are questions that you must answer to potentially tip the odds in your favor!
One important question would be:
“If I don’t retire at the end of the year, am I still allowed to contribute the full amount to the Thrift Savings Plan (TSP)?”
To give some background, let’s start with the IRS’s rule on how much you can contribute each year. For 2026, the annual contribution limit is $24,500 for each employee. If you’ll turn at least age 50 by December 31, 2026, you’re also permitted to contribute an additional $8,000 in catch-up contributions this year. That brings the total contribution limit to $32,500 for 2026.
Under a change made in the SECURE 2.0 Act of 2022, a higher catch-up contribution limit applies for employees aged 60, 61, 62 and 63 who participate in these plans. For 2026, this higher catch-up contribution limit is $11,250 instead of $8,000. That brings the total contribution limit to $35,750 for ages 60-63 for 2026.
New for 2026: Under SECURE 2.0, federal employees whose 2025 Social Security (FICA) wages from their employing agency exceeded $150,000 must make their eligible TSP catch-up contributions on a Roth (after-tax) basis. This change doesn't reduce how much they can contribute, but it can affect their current tax liability and retirement tax-planning strategy.
If you retire at the end of December, you'll generally have more pay periods available to make your contributions. But what about those who retire earlier in the year? Can they still contribute $32,500 (or $35,750) even if they don’t work until the last pay period? The answer is often YES! But it takes some planning to make sure you don't miss the opportunity. Let me explain…
The first test: Will I earn enough to make my desired contributions?
The IRS requires that you have sufficient eligible compensation to make your desired TSP contributions. Since TSP contributions must come directly from your paycheck, you'll need to earn enough—and have enough available after required payroll deductions—to contribute the amount you want.
For example, if you retire on January 31st, you likely won't have earned enough money or received enough paychecks to contribute the full $32,500 (or $35,750 for those ages 60–63) allowed in 2026.
But remember, it's not just about how much you earn. You'll also need to consider how many paychecks you'll receive before retirement and allow enough time for any changes to your TSP contribution elections to take effect.
The bottom line? The earlier you plan, the better your chances of maximizing your TSP contributions before your final paycheck.
The second test: Can I contribute the full amount to my TSP?
Second, your TSP contributions don't have to be spread evenly throughout the calendar year. You can adjust how much you contribute during each pay period, provided you stay within the applicable annual contribution limits and have sufficient eligible pay to cover those contributions.
This means that even if you're retiring before December, you may still be able to contribute the full annual maximum by increasing your contributions during your remaining pay periods.
Let's look at a quick example: You're 62, earning an annual salary of $100,000, and have decided that June 30th is your retirement date. You want to contribute the full $35,750 allowed to your TSP in 2026.
Assuming you'll receive 14 paychecks during the calendar year before you retire, you'd need to contribute approximately $2,554 per paycheck, with a small adjustment to your final contribution, to reach that amount.
By adjusting your contributions ahead of time—and ensuring you have sufficient eligible pay to cover those deductions—you may be able to reach the annual TSP contribution limit before your retirement date.
What effect does this have on my TSP match?
For FERS employees, there's another important consideration: agency matching contributions.
Your agency generally provides matching contributions based on the amount you contribute during each pay period, up to the applicable matching limit. If you reach your annual TSP contribution limit before your final paycheck, you could miss out on valuable matching contributions during the remaining pay periods that you're still employed.
Keep in mind that the Agency Automatic (1%) Contribution is separate from matching contributions and continues for eligible FERS employees while they're employed, even if they stop contributing.
That's why timing your contributions matters. The goal isn't simply to max out your TSP—it's to make the most of your contributions and available agency benefits before you retire.
In Conclusion
As with most federal benefits, knowing the rules before you retire can make a meaningful difference in your financial future.
The goal isn't just to retire when you're eligible. It's to make sure you're taking full advantage of the benefits you've worked so hard to earn.
A little planning before your final paycheck could mean potential tax advantages, a larger TSP balance, or both. And that's an opportunity you don't want to discover you missed after you've already left federal service.
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