The Thrift Savings Plan (TSP) is a powerful retirement savings program designed for U.S. federal employees and members of the military. Established in 1986 as part of the Federal Employees’ Retirement System (FERS), the TSP functions similarly to a private-sector 401(k) plan, offering tax advantages, low administrative costs, and diversified investment options. For millions of public servants, it serves as a cornerstone of long-term financial security.
WHO IS ELIGIBLE?
The TSP is available to employees covered under the Federal Employees Retirement System (FERS), the Civil Service Retirement System (CSRS), and members of the uniformed services, including those in the Ready Reserve. Participants can contribute a portion of their basic pay each pay period, and contributions can be adjusted throughout the year.
CONTRIBUTION BENEFITS
One of the most valuable features of the TSP for FERS employees and service members under the Blended Retirement System (BRS) is the government matching contribution. Under FERS and BRS, the government automatically contributes 1% of an employee’s basic pay, even if the employee does not contribute. Additionally, the government matches employee contributions dollar-for-dollar on the first 3% of pay and 50 cents on the dollar for the next 2%. By contributing at least 5% of pay, participants can receive the full government match—essentially free money toward retirement.
Contribution limits are set annually by the Internal Revenue Service (IRS). Participants can choose between traditional (pre-tax) contributions, which reduce current taxable income, and Roth (after-tax) contributions, which allow for tax-free withdrawals in retirement if certain conditions are met.
INVESTMENT OPTIONS
The TSP offers a streamlined set of investment funds designed to cover a range of risk tolerances and financial goals:
- G Fund (Government Securities Investment Fund): Invests in short-term U.S. Treasury securities specially issued to the TSP. It provides stability and protection against market losses.
- F Fund (Fixed Income Index Investment Fund): Tracks the Bloomberg U.S. Aggregate Bond Index, offering exposure to government, corporate, and mortgage-backed bonds.
- C Fund (Common Stock Index Investment Fund): Mirrors the S&P 500 Index, representing large and mid-sized U.S. companies.
- S Fund (Small Capitalization Stock Index Investment Fund): Tracks the Dow Jones U.S. Completion Total Stock Market Index, covering small and mid-sized companies not included in the S&P 500.
- I Fund (International Stock Index Investment Fund): Invests in international stocks from developed markets outside the U.S.
- The Mutual Fund Window: TSP account holders can transfer money from their account to the mutual fund window and open a separate account provided by the mutual fund window administrator. After you meet certain eligibility requirements and pay the necessary fees, you can buy, sell, and exchange mutual funds that you select from those available.
In addition to these core funds and the mutual fund window, participants can select Lifecycle (L) Funds, which automatically adjust asset allocations based on a target retirement date. These funds gradually become more conservative as retirement approaches, making them an attractive “set it and forget it” option.
LOW COST AND LONG-TERM GROWTH
One of the TSP’s greatest advantages is its extremely low expense ratio compared to many private-sector retirement plans. Lower fees mean more of an employee’s money remains invested and compounding over time.
Over the past few years, expense ratios for many private-sector mutual funds and ETFs have become competitive with those of the TSP. For example, Fidelity now offers several no-fee mutual funds to encourage transfers to their services.
WITHDRAWAL OPTIONS
Upon retirement or separation from service, participants can withdraw funds in several ways: as a lump-sum payment, through installment payments, as annuities, or through partial withdrawals. Required minimum distributions (RMDs) begin at age 73 for traditional accounts, in accordance with federal tax law.
BENEFICIARY PARTICIPANT ACCOUNT (BPA) PRECAUATION
This is an issue for federal retirees to be aware of. When an annuitant dies, the TSP establishes a Beneficiary Participant Account (BPA) in the spouse’s name if married and/or sets up a temporary account for all non-spouse beneficiaries. Temporary account holders have 90 days to either withdraw the funds or roll them over into an inherited IRA.
When a beneficiary participant dies, the new beneficiary(ies) cannot continue to maintain the account in the TSP. Also, the death benefit payment cannot be rolled over into an inherited IRA. The only person who can be a beneficiary participant is the spouse of a deceased annuitant.
According to Kim Weaver, Director of External Affairs for the TSP, “…under Code 402(c)(9) and (11), the beneficiary of a spouse is not considered a beneficiary of the employee, which is a requirement for a rollover. Beneficiaries from BPAs are subject to a 10% federal tax withholding unless the recipient elects otherwise.”
To avoid this, you can elect to roll over your TSP account to an IRA at another brokerage firm, such as Fidelity or Vanguard. I recently rolled over my TSP account to ensure our children will be able to roll over my wife’s inherited retirement account after I die and not have to take the full amount the year my wife passes away.
WHY THE TSP MATTERS
For federal employees and military members, the TSP plays a central role in building retirement income alongside pensions (if eligible) and Social Security benefits. Consistent contributions, maximizing the government match, and maintaining a diversified investment strategy can help participants build substantial retirement savings over time.
It is smart to contribute as much as possible to increase your retirement nest egg. At the same time, you will be reducing your annual income taxes because funds deposited in your TSP are tax-deferred savings.
To reach your maximum contribution over time of $24,500 for 2026, consider increasing your contribution annually by at least half of your pay raise to reach this goal. When you add the $8,000 catch-up contribution for those over 50, the maximum annual contribution increases to $32,000!
In short, the TSP offers a simple, cost-effective, and flexible path to financial security for those who serve the nation.
