The TSP Match Is Free Money — Stop Leaving It on the Table

If you are enlisted under the Blended Retirement System and not contributing at least 5% to your TSP, you are handing part of your paycheck back to the government. Here is exactly how the match works — and how to capture every dollar of it.

Let me ask you something. If your commanding officer handed you an envelope with your name on it every month and told you all you had to do was pick it up — would you leave it on the table?

That is exactly what is happening if you are in the Blended Retirement System (BRS) and not contributing at least 5% of your base pay to the Thrift Savings Plan (TSP).

The government is literally trying to give you money. Most soldiers never pick it up.

What Is the TSP?

The Thrift Savings Plan is the military's version of a 401(k). It is a tax-advantaged retirement account available to all active-duty service members. You contribute a percentage of your paycheck, it grows tax-deferred (or tax-free, in a Roth), and you build long-term wealth on autopilot.

In 2026, you can contribute up to $24,500 per year to your TSP. That limit goes up every year. And inside that account, your money compounds — meaning it earns returns on its returns, year after year, for decades.

The BRS Match — How It Actually Works

If you enlisted on or after January 1, 2018, you are automatically enrolled in the Blended Retirement System. Here is how the government match works:

The government automatically contributes 1% of your base pay to your TSP — whether you contribute or not.
For every dollar you contribute up to 3% of your base pay, the government matches it dollar for dollar.
For the next 2% you contribute (bringing your total to 5%), the government matches 50 cents on the dollar.
So if you contribute 5%, the government adds another 4% on top — giving you 9% of your base pay going into your TSP every single month.

Let's Run the Numbers

Say your base pay is $3,000 per month (common for an E-4 with a couple of years in).

You contribute 5% = $150/month
Government contributes: 1% automatic + 3% dollar-for-dollar + 1% at 50 cents = 4% = $120/month
Total into your TSP: $270/month just from matching alone
Over 20 years, at a 7% average return, that $120/month in free government money alone grows to roughly $62,000

That is $62,000 you did not earn. You just had to show up and not opt out.

Traditional TSP vs. Roth TSP — Which One?

You have two options inside the TSP:

Traditional TSP: You contribute pre-tax dollars, reducing your taxable income now. You pay taxes when you withdraw in retirement.

Roth TSP: You contribute after-tax dollars now, but all growth and qualified withdrawals are completely tax-free.

My recommendation for most junior enlisted soldiers: go Roth. You are likely in a lower tax bracket now than you will be in retirement. Lock in the tax-free growth while your income is lower. Future-you will thank you.

The Three TSP Funds You Need to Know

The TSP has several investment funds. For most soldiers building long-term wealth, keep it simple:

C Fund: Tracks the S&P 500 — the 500 largest U.S. companies. This is the engine of wealth building. Historically averages around 10% annually over the long term.

S Fund: Tracks smaller U.S. companies. Higher risk, higher potential return.

I Fund: International stocks. Adds global diversification.

My own allocation: 100% C Fund. Simple. Diversified. Hands-off. I have not changed it since I started.

How to Set It Up in 5 Minutes

Log in to myPay (the military's pay portal).
Navigate to "Thrift Savings Plan."
Set your contribution percentage to at least 5% (I recommend starting at 60% if your budget allows).
Log in to tsp.gov to select your fund allocation.
Do not touch it. Let it compound.

That is it. Five minutes of action today can add hundreds of thousands of dollars to your retirement — all from money the government was already trying to give you.

My Personal Take

When I enlisted at 38, I had already built my wealth through disciplined saving and index fund investing. But if I had the TSP match available to me at 20? My timeline would have been cut in half.

The TSP match is the single best guaranteed return available to anyone in the military. Matching contributions are a 100% instant return on your money before any market growth happens. There is no investment on earth that guarantees that.

If you are not at 5% yet, log in to myPay today. Right now. This is not optional — it is the first rule of military financial freedom.

— Joe Do, US Army · Soldier to Millionaire