If you’re on active duty or recently separated, you’ve probably heard about both the TSP and the Roth IRA. Both are powerful retirement accounts. Both offer tax advantages. But they work differently — and knowing which to prioritize can make a significant difference in your long-term wealth.
Here’s a clear breakdown so you can make the right call.
What Is the TSP?
The Thrift Savings Plan is a retirement account available to federal employees and military members. It works similarly to a 401(k) in the civilian world. You contribute pre-tax dollars, your money grows tax-deferred, and you pay taxes when you withdraw in retirement.
If you’re under the Blended Retirement System, the government matches your contributions up to 5 percent of your base pay. That match is free money — and it’s one of the most important factors in this decision.
The 2025 contribution limit for the TSP is $23,500 per year. That’s significantly higher than the Roth IRA limit.
The TSP also offers a Roth option — the Roth TSP — where you contribute after-tax dollars and withdrawals in retirement are tax-free, just like a Roth IRA.
What Is a Roth IRA?
A Roth IRA is an individual retirement account you open yourself through a brokerage like Fidelity or Schwab. You contribute after-tax dollars, your money grows tax-free, and qualified withdrawals in retirement are completely tax-free.
The 2025 contribution limit is $7,000 per year. Lower than the TSP, but the Roth IRA has unique advantages that make it worth maxing out alongside your TSP.
Key Differences
Contribution limits: TSP wins with $23,500 vs $7,000 for the Roth IRA.
Employer match: TSP wins if you’re under BRS. The 5 percent government match has no equivalent in a Roth IRA.
Investment options: Roth IRA wins. The TSP offers five core funds and a mutual fund window. A Roth IRA at Fidelity or Schwab gives you access to thousands of ETFs, stocks, and funds including VTI, VOO, and QQQM.
Flexibility: Roth IRA wins. You can withdraw your contributions — not earnings — from a Roth IRA at any time without penalty. The TSP has more restrictions on early withdrawals.
Tax treatment: Both Roth options are equal — contributions are after-tax, growth and qualified withdrawals are tax-free.
Income limits: Roth IRA loses here. If you earn above $161,000 as a single filer in 2025 your ability to contribute to a Roth IRA phases out. The Roth TSP has no income limits.
The Right Order of Operations
For most veterans the answer isn’t TSP vs Roth IRA — it’s both, in the right order.
Step one: Contribute enough to the TSP to capture the full 5 percent government match if you’re under BRS. This is a 100 percent instant return on your money. Never leave this on the table.
Step two: Max your Roth IRA. Contribute the full $7,000 per year. The investment flexibility and withdrawal rules make this the best account for long-term tax-free wealth building.
Step three: If you have money left over, go back and max your Roth TSP up to the $23,500 limit.
What to Do After Separation
When you leave the military you have options for your TSP balance. You can leave it in the TSP, roll it into a Roth IRA, or roll it into a civilian employer’s 401(k).
Rolling your TSP balance into a Roth IRA is often the best move for separated veterans. You get access to better investment options, more flexibility, and consolidate your accounts in one place. Note that rolling a traditional TSP into a Roth IRA is a taxable event — you’ll owe taxes on the converted amount. Plan accordingly.
The Bottom Line
Capture the match first. Max the Roth IRA second. Then go back and max the TSP if you can.
Done consistently from your mid-20s, this combination creates a tax-free retirement engine worth well over a million dollars by the time you’re 50 — completely separate from whatever you build in business and real estate.
That’s the stack. Build it and leave it alone.
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