Federal employees have a unique advantage when planning for their post-career years: they typically receive a guaranteed pension through FERS or CSRS, alongside a Thrift Savings Plan (TSP). However, unlike a guaranteed pension, your TSP is a defined contribution plan. This means the money can run out if it isn't managed properly. To preserve and maximize your retirement wealth, it is essential to steer clear of these ten common TSP missteps.
1. Rolling Over to High-Fee IRAs Many private financial advisors will encourage you to move your TSP funds into an Individual Retirement Account (IRA) under their management. What they often gloss over are the hidden expenses. The TSP is renowned for having some of the lowest administrative fees in the investment world, with zero commissions. Transferring your balance to a private IRA usually subjects your money to custodial fees and maintenance charges that actively eat away at your long-term returns.
2. Forgetting About Old 401(k) Accounts When transitioning from the private sector to federal service, it is easy to leave old 401(k) accounts sitting idle with former employers. Neglecting these accounts can derail your overarching financial goals, as their asset allocations might no longer suit your timeline. A smarter move is often to consolidate your accounts by rolling those previous retirement funds directly into your TSP.
3. Coasting on the Default Contribution Rate New hires are automatically set up to contribute 5% of their pay to the TSP, which allows them to capture the full agency match. However, assuming this baseline is enough to fund a comfortable retirement is a massive oversight. Financial experts broadly agree that individuals should be saving about 15% of their total income for retirement. To hit this target, federal employees should aim to contribute at least 10% from their own paychecks, which, combined with the 5% government match, hits that 15% sweet spot.
4. Panic Selling During Market Dips When the stock market takes a dive—such as during the onset of the 2020 pandemic—some participants panic and move their assets out of the C, S, and I stock funds and into the ultra-safe G fund. This emotional reaction violates the core rule of investing: you end up selling low. Furthermore, panic sellers almost always miss the eventual market rebound, leaving their portfolios in a much worse position than those who simply stayed the course.
5. Taking Massive Lump-Sum Withdrawals Cashing out your entire traditional TSP as soon as you retire is an incredibly costly mistake. Because traditional TSP funds have not yet been taxed, a lump-sum withdrawal is treated as ordinary income. A massive withdrawal could instantly catapult you into the highest federal tax bracket, saddle you with massive state income taxes, and permanently end the tax-deferred growth of your savings.
6. Playing it Too Safe in Your Youth While older workers should rightfully transition to safer investments, young and mid-career feds often miss out on massive gains by avoiding the stock-based C, S, and I funds. Over 20- to 30-year timelines, stocks historically outperform bonds. A common rule of thumb for moderate growth is to subtract your current age from 120; the resulting number is the percentage of your portfolio that should be invested in stocks rather than conservative bond funds.
7. Waiting Until Mid-Career to Start Saving Holding off on serious TSP contributions until you are in your 40s or 50s forces you to play an incredibly difficult game of catch-up. The greatest asset a retirement account has is time. Starting your contributions early allows you to harness the power of compound interest, making it exponentially easier to build a sizable nest egg compared to cramming your savings into the last decade of your career.
8. Failing to Diversify Your Holdings To keep things simple, some TSP participants will dump all of their money into just one stock fund or one bond fund. This lack of diversification makes your portfolio unnecessarily vulnerable to market volatility. By spreading your investments across the various stock and bond funds the TSP offers, you can buffer your savings against sudden economic shocks.
9. Canceling Your Automatic Enrollment Upon hiring, federal workers are automatically enrolled to contribute 5% of their paycheck to the TSP. Opting out of this automatic enrollment is one of the worst financial decisions a new employee can make. Not only does it halt your tax-advantaged compounding growth before it even starts, but it also means you are actively turning down the free "matching" money provided by your agency.
10. Blindly Trusting Lifecycle (L) Funds Lifecycle (L) funds are fantastic for beginners because they automatically shift your investments from aggressive stocks to conservative bonds as you get closer to retirement. However, they rely on a one-size-fits-all formula. As you grow more experienced and approach retirement, relying completely on an L fund without factoring in your personal risk tolerance and specific financial situation can result in a portfolio that doesn't properly align with your actual needs.
Managing your Thrift Savings Plan isn't just about picking a fund and crossing your fingers—it requires a proactive strategy, especially with the major shifts hitting in 2026. Whether you're navigating the new $24,500 contribution limits, deciding if the $11,250 "super catch-up" for ages 60–63 applies to you, or weighing the benefits of the brand-new in-plan Roth conversions, there is a lot to get right. You don't have to guess your way through your golden years; one of our TSP advisors can ensure your TSP is working optimally for you now and in retirement.