Quick Answer
The Thrift Savings Plan (TSP) is the federal government's 401(k)-style retirement plan for federal employees and military personnel. For 2026, you can contribute up to $23,500 with automatic government matching up to 5% of salary for FERS employees, making it one of the best retirement deals available.
Best Answer
Marcus Rivera, CFP
Federal employees and military personnel who want to understand and optimize their TSP benefits
What is the Thrift Savings Plan (TSP)?
The Thrift Savings Plan (TSP) is the federal government's retirement savings and investment plan for federal employees and members of the uniformed services. Think of it as the government's version of a 401(k) plan, but with some of the lowest fees in the retirement plan industry and excellent government matching benefits.
Established in 1986, the TSP is designed to provide federal workers with the same type of savings and tax benefits that private sector employees receive from 401(k) plans.
2026 TSP contribution limits and matching
For 2026, you can contribute up to $23,500 to your TSP account. If you're 50 or older, you can make an additional $7,500 catch-up contribution, bringing your total to $31,000.
Government matching for FERS employees:
CSRS employees receive only the automatic 1% contribution with no additional matching.
Example: $85,000 federal employee maximizing TSP match
Let's say you're a GS-13 federal employee earning $85,000 annually under FERS:
Your contribution (5% to get full match):
Government contributions you receive:
Result: You contribute $4,250 and receive $4,250 in matching — that's an immediate 100% return on your investment, plus tax savings.
TSP fund options and fees
These expense ratios are among the lowest in the retirement industry — most 401(k) plans charge 0.5% to 2.0% annually.
Traditional vs. Roth TSP
You can contribute to both traditional (pre-tax) and Roth (after-tax) TSP accounts:
Traditional TSP:
Roth TSP:
*Note: Government matching contributions always go into the traditional TSP account, regardless of whether you contribute to traditional or Roth.*
What you should do
1. Contribute at least 5% to get the full government match — it's free money
2. Start immediately if you haven't already — even new federal employees are eligible
3. Consider increasing contributions by 1% each year during open season
4. Choose appropriate funds based on your age and risk tolerance
5. Don't cash out when you leave federal service — roll it over or leave it in TSP
Use our [paycheck calculator](paycheck-calculator) to see exactly how TSP contributions would affect your federal pay and take-home amount.
Key takeaway: TSP offers federal employees one of the best retirement deals available: up to 5% salary matching, extremely low fees (0.042%), and the same $23,500 contribution limit as 401(k) plans for 2026.
Key Takeaway: TSP provides federal employees with 5% salary matching, ultra-low 0.042% fees, and $23,500 contribution limits — making it one of the best retirement plans available.
TSP contribution limits and government matching for 2026
| Contribution Type | Under 50 | 50 and Older | Government Match (FERS) |
|---|---|---|---|
| Regular contribution limit | $23,500 | $23,500 | Up to 5% of salary |
| Catch-up contribution | N/A | $7,500 | None on catch-up |
| Total employee contribution | $23,500 | $31,000 | N/A |
| Maximum gov't matching | $11,750 (5% of $235k) | $11,750 (5% of $235k) | Automatic 1% + match formula |
| Total possible TSP | $35,250 | $42,750 | Combined employee + government |
More Perspectives
Sarah Chen, CPA
New federal employees and military personnel just starting their government careers
Starting your federal career with TSP
As a new federal employee, the TSP is one of your most valuable benefits. The government matching alone makes it essential to participate, even if you can only afford a small contribution initially.
The golden rule: Never miss the match
If you take away one thing about TSP, it should be this: always contribute at least 5% to get the full government match. This is literally free money that doubles your retirement contributions.
Getting started on a tight budget
If 5% feels like too much on your starting salary, here's a strategy:
Month 1-3: Start with 1% (you still get the automatic 1% government contribution plus partial matching)
Month 4-6: Increase to 3%
Month 7-12: Work up to the full 5%
This gradual approach helps your budget adjust while you're learning to live on your federal salary.
Example: GS-9 Step 1 starting salary (~$45,000)
Contributing 5% to get full TSP match:
The power of starting early: That $4,500 total annual contribution ($2,250 yours + $2,250 match) growing at 7% annually becomes approximately $1.4 million by retirement at age 65.
Automatic enrollment reminder
New federal employees hired after August 1, 2010, are automatically enrolled in TSP at 5% with matching. If you opted out, you can re-enroll at any time through Employee Express or your HR office.
Key takeaway: New federal employees should prioritize getting the full 5% TSP match above almost any other financial goal — it's an immediate 100% return that compounds for decades.
Key Takeaway: New federal employees must contribute 5% to TSP for full matching — it's free money that can grow to over $1 million by retirement.
Marcus Rivera, CFP
Senior federal employees, executives, and high-grade personnel looking to maximize retirement savings
Maximizing TSP for senior federal employees
As a high-earning federal employee (likely GS-14/15 or Senior Executive Service), you're in an excellent position to maximize both TSP benefits and overall retirement savings through strategic contribution planning.
Advanced TSP strategies for $150K+ earners
Max out your TSP: At your income level, strongly consider contributing the full $23,500 (or $31,000 if 50+). The tax benefits are substantial in higher brackets, and TSP's ultra-low fees make it one of the best investment vehicles available.
Roth vs. Traditional decision: High earners face a key choice. If you expect your federal pension plus TSP withdrawals to keep you in high tax brackets in retirement, Roth TSP contributions might make sense despite the current tax hit.
Example: SES executive earning $180,000
Maximizing TSP contributions:
Additional strategy: Consider supplementing TSP with a traditional or Roth IRA (income permitting) for an additional $7,000 in retirement savings.
The TSP catch-up advantage
If you're 50+ and approaching retirement, the catch-up contribution becomes powerful:
This combination can result in $40,000+ annual retirement contributions through TSP alone.
Post-career TSP management
Unlike many 401(k) plans, you can leave your money in TSP after retirement and continue to benefit from the low fees. TSP also offers competitive annuity options and flexible withdrawal strategies.
Key takeaway: High-earning federal employees should maximize TSP contributions for superior tax benefits and ultra-low fees, potentially contributing $40,000+ annually when including government matching.
Key Takeaway: Senior federal employees can contribute over $40,000 annually to TSP when combining maximum contributions with government matching and catch-up provisions.
Sources
- TSP.gov Official Website — Official Thrift Savings Plan information and account management
- IRS Publication 4484 — Choose a Retirement Plan for Employees
Reviewed by Marcus Rivera, CFP on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.