If you’re a federal employee or uniformed service member, you’ve probably spent years contributing to your Thrift Savings Plan (TSP). But as retirement approaches, one question looms: How do I turn my savings into reliable income? Enter the TSP Annuity—a tool that converts your nest egg into predictable monthly payments. This article breaks down how it works, its pros and cons, and how to decide if it’s the right move for your golden years.
What Is a TSP Annuity?
A TSP Annuity is a retirement income option that lets you exchange part or all of your TSP savings for guaranteed monthly payments, typically lasting your lifetime. Managed by an external insurance provider, it’s designed for federal workers who want to avoid market volatility and outliving their savings. Unlike keeping your money invested, an annuity locks in steady paychecks, similar to a pension.
Here’s the catch: Once you buy a TSP Annuity, you can’t reverse the decision or adjust your payments. It’s a lifelong commitment, so careful planning is essential. You can fund it with traditional TSP funds (pre-tax dollars), Roth TSP (post-tax), or a mix of both. While it offers peace of mind, it’s not the only withdrawal option—alternatives like partial withdrawals or installments provide more flexibility. But for those craving stability, the annuity’s “set it and forget it” structure is a major draw.
How Does a TSP Annuity Work?

Let’s walk through the mechanics. To purchase a TSP Annuity, you’ll need at least $3,500 from your account (applied separately to traditional and Roth balances). The payout amount depends on four factors:
- Your age (and your joint annuitant’s age, if applicable): Younger retirees receive smaller monthly payments because the income must stretch over a longer lifespan.
- The annuity type: Options include single life (payments stop at your death) or joint life (payments continue for a survivor).
- Current interest rates: Annuity rates fluctuate monthly, so timing matters.
- Additional features: Adding inflation protection or survivor benefits reduces your initial payout.
For example, a 65-year-old with a $200,000 TSP balance might receive around $900 per month with a basic single-life annuity. If they opt for a joint-life annuity with a spouse, that amount drops to $800 to account for the spouse’s longer lifespan. Payments typically start within a month of purchase, and taxes vary: Traditional TSP withdrawals are fully taxable, while Roth payments are tax-free if you’re over 59.5 and meet the five-year rule.
Pro tip: Use the TSP’s online annuity calculator to model different scenarios. It’s a free tool that lets you tweak variables like age, balance, and annuity type to estimate your monthly income.
Types of TSP Annuities and Their Features
The TSP offers three annuity structures, each catering to different needs:
Single Life Annuity
This option provides the highest monthly payout because payments stop when you die. It’s ideal for retirees without dependents or those who have other income sources (like a spouse’s pension). You can add a “cash refund” feature, which pays any remaining balance to beneficiaries if you die early, or a “10-year certain” clause to guarantee payments for a decade even if you pass away sooner.
Joint Life Annuity with Spouse
Designed for married couples, this ensures your spouse continues receiving payments (either 100% or 50% of the original amount) after your death. You can choose between level payments (fixed amount) or increasing payments (adjusted for inflation, though these start lower). This is a popular choice for couples relying on a single income stream.
Joint Life Annuity with Another Person
This option allows you to name a non-spouse (like a sibling or dependent) as a co-beneficiary. However, the TSP requires proof of an “insurable interest”—meaning the person would suffer financially without your support. Payments are always level (not adjusted for inflation), and if the co-annuitant is more than 10 years younger, the monthly amount drops significantly.
Weighing the Pros and Cons: Is a TSP Annuity Right for You?

Like any financial product, TSP Annuities have trade-offs. Let’s explore them in detail.
The Advantages
- Lifetime Security: Your biggest retirement risk isn’t just running out of money—it’s outliving your savings. An annuity eliminates this fear by paying you for life, regardless of market crashes or economic downturns.
- Simplicity: Managing investments in retirement can be stressful. With an annuity, you hand off the responsibility to an insurer and enjoy predictable deposits.
- Survivor Protection: Joint-life annuities safeguard your spouse or partner’s financial future, making them a compassionate choice for married retirees.
- Tax Efficiency for Roth Holders: If your annuity is funded with Roth TSP funds and you meet IRS rules, your payments are tax-free.
The Drawbacks
- Irreversibility: Once you commit, you can’t reclaim your lump sum or adjust your plan. If unexpected expenses arise (like medical bills), you’re locked into your original terms.
- Inflation Risk: Unless you choose increasing payments, your buying power erodes over time. For instance, $1,000 per month today will feel like $550 in 20 years with 3% annual inflation.
- Lower Growth Potential: While annuities prioritize safety, they often underperform self-managed portfolios in strong markets. Over a 30-year retirement, this could mean leaving thousands on the table.
Alternatives to Consider
If the annuity’s rigidity gives you pause, explore these TSP withdrawal options:
- Monthly Installments: Withdraw fixed amounts while keeping your savings invested. You control the frequency and can adjust or stop payments anytime.
- Partial Withdrawals: Take a lump sum for immediate needs (like paying off a mortgage) and leave the rest to grow.
- Rollovers: Transfer your TSP balance to an IRA for more investment choices and flexibility.
Final Thoughts: Making an Informed Decision
A TSP Annuity isn’t a one-size-fits-all solution, but it’s a powerful tool for retirees who value certainty. It’s particularly compelling if:
- You have no pension and worry about market volatility.
- You want to supplement Social Security or a spouse’s income.
- You’re comfortable sacrificing liquidity for lifelong security.
Before committing, consult a fee-only financial advisor to review your full retirement picture—including taxes, healthcare costs, and estate plans. Pairing an annuity with other income streams (like part-time work or rental income) can also provide balance.
Remember, retirement planning is about aligning your finances with your lifestyle goals. Whether you choose an annuity or another path, the key is to make a decision that lets you enjoy your hard-earned retirement with confidence