The military does not offer a 401(k), but it offers something different instead

Active duty service members, reservists, and National Guard members do not have access to a traditional 401(k) plan. Instead, the military runs its own retirement system called the Thrift Savings Plan (TSP), which works similarly to a 401(k) but is designed specifically for federal employees and military personnel. The TSP is the primary retirement savings tool available to you while serving.

The military also provides a defined benefit pension — a may provide monthly payment for life once you reach 20 years of service — which most private employers no longer offer. This combination of a pension plus the TSP is what replaces the 401(k) structure that civilians use.

Key Takeaways

  • The Thrift Savings Plan (TSP) is the military's version of a 401(k), with similar contribution limits and tax advantages.
  • You can contribute to the TSP immediately upon entering service, and the military matches a portion of your contributions up to a certain percentage.
  • The military pension provides a may provide monthly income for life after 20 years of service, separate from TSP savings.
  • TSP contributions are optional, but the military match is assistance programs that you forfeit if you do not contribute.
  • Service members can access TSP investment options and account information through the official TSP website and mobile app.

How the Thrift Savings Plan works for military members

The TSP functions like a 401(k) in most practical ways. You choose a percentage of your base pay to contribute each month, and that money goes into investment accounts you select. The TSP offers five core investment funds (Government Securities Fund, Common Stock Index Fund, International Stock Index Fund, Bond Index Fund, and Small Cap Stock Index Fund) plus target-date funds that automatically adjust as you approach retirement.

Contributions to the TSP are made with pre-tax dollars, which lowers your taxable income for the year. You pay taxes on the money only when you withdraw it in retirement. For 2024, the contribution limit is $23,500 per year for service members under age 50, and $31,000 for those 50 and older (these limits change annually).

Unlike a 401(k) at a private company, the TSP has very low administrative fees — typically around 0.04% to 0.05% annually — because it is run by the federal government. This means more of your money stays invested rather than going to fund management costs.

The military match and how to capture it

The Department of Defense automatically contributes 1% of your base pay to your TSP account, even if you contribute nothing yourself. This is an automatic benefit you receive simply by being on active duty or in the Reserve or National Guard.

Beyond that automatic 1%, the military will match your contributions dollar-for-dollar up to 5% of your base pay. This means if you contribute 5% of your salary to the TSP, the military adds another 5%. If you contribute less — say 3% — the military matches only that 3%. If you contribute more than 5%, the military does not match the excess.

To capture the full match, you need to contribute at least 5% of your base pay. Many financial advisors recommend doing this because the match is immediate, may provide money added to your retirement account. If you contribute less than 5%, you are leaving assistance programs on the table.

The military pension: may provide income for 20 years of service

The military pension is separate from the TSP and is a defined benefit — meaning you receive a may provide monthly payment for the rest of your life once you meet the service requirement. To receive a pension, you must serve at least 20 years on active duty or in the Reserve/National Guard.

The pension amount is calculated as a percentage of your base pay at the time you retire, multiplied by your years of service. For example, after 20 years, you receive 50% of your base pay as a monthly pension. After 30 years, you receive 75%. This continues for life, and most military pensions include a cost-of-living adjustment (COLA) each year to keep pace with inflation.

The pension is paid by the Department of Defense, not from your TSP account. It is a separate benefit that exists regardless of how much you save in the TSP. This is a major advantage compared to private-sector 401(k) plans, which provide no may provide income — they depend entirely on how much you saved and how well your investments performed.

When you can withdraw TSP money

The TSP has withdrawal rules similar to a 401(k). You generally cannot withdraw money before age 59½ without penalty, with limited exceptions. One exception unique to military members is the Uniformed Services Election Act (USEA), which allows you to withdraw TSP funds without penalty if you separate from service before age 59½, but only after you have separated.

Once you reach age 59½, you can withdraw money from your TSP without penalty. You can also take loans against your TSP balance in some cases, though this reduces the amount growing for retirement. At age 73, you must begin taking required minimum distributions from your TSP account.

If you leave the military before 20 years of service, your TSP account remains yours and continues to grow. You do not lose the money you contributed or the military match you received. However, you will not receive the military pension, which only vests after 20 years.

TSP versus a civilian 401(k): what is different

The TSP is simpler and cheaper than most 401(k) plans. Private-sector 401(k)s often charge higher fees and offer more investment options, which can be overwhelming. The TSP limits you to a smaller set of funds, which actually makes it easier to build a diversified portfolio without overthinking it.

The biggest difference is the military pension. Civilians with a 401(k) have no may provide income in retirement — they depend entirely on their savings and Social Security. Military members get both a may provide pension (after 20 years) and the TSP, which provides two sources of retirement income. This is a significant financial advantage.

Another difference: the military match is more generous than many private-sector matches. The full 5% match is automatic if you contribute 5%, whereas many civilian employers match only 3% or 4% of salary.

How to manage your TSP account

You can manage your TSP account through the official TSP website (tsp.gov) or the mobile app. You log in with your credentials and can view your balance, change your contribution percentage, reallocate money between the five core funds, and review your investment performance.

The TSP also provides educational resources, including fund fact sheets and retirement calculators. If you have questions, you can contact the TSP directly by phone or through their website. Many military bases also offer financial counseling services that can help you plan your TSP contributions and retirement strategy.

It is important to review your TSP account periodically — at least once a year — to make sure your contributions are on track and your fund allocation matches your retirement timeline. If you are early in your career, you might hold more in stock funds for growth. As you approach retirement, you might shift toward more conservative investments.

Frequently Asked Questions

Can I have a TSP and a civilian 401(k) at the same time?

Yes. If you have a civilian job in addition to military service, you can contribute to both a TSP and a 401(k). However, your combined contributions to all retirement plans cannot exceed the annual limit set by the IRS. For 2024, that limit is $23,500 (or $31,000 if you are 50 or older), shared across all plans.

What happens to my TSP if I leave the military before 20 years?

Your TSP account remains yours. The money you contributed and the military match you received stay in the account and continue to grow. You do not lose access to it. However, you cannot withdraw it penalty-free until age 59½ unless you meet specific exceptions. You will not receive a military pension, which requires 20 years of service.

Is the TSP better than investing on my own?

The TSP is a good option for most military members because of the low fees, the automatic military match, and the simplicity of the fund choices. If you are comfortable managing investments on your own and want more options, you could open a separate IRA or brokerage account. Many service members do both — they contribute enough to the TSP to capture the full match, then invest additional money elsewhere.

Do I have to contribute to the TSP?

No, contributions are optional. However, the military automatically contributes 1% of your base pay regardless. If you contribute at least 5%, the military matches that amount, which is assistance programs. Most financial advisors recommend contributing at least 5% to capture the full match.

Can I roll my TSP into a civilian 401(k) or IRA after I leave the military?

Yes. After you separate from service, you can roll your TSP balance into a traditional IRA or into a 401(k) at a civilian employer. This allows you to consolidate retirement accounts if you prefer. You can also leave the money in the TSP if you are satisfied with it — there is no requirement to move it.