Yes, the Thrift Savings Plan does match contributions, but only for two groups: federal civilians covered by the Federal Employees’ Retirement System (FERS) and uniformed service members enrolled in the Blended Retirement System (BRS). When you contribute at least 5% of your basic pay, your agency or service adds another 5%, so 10% of your basic pay lands in your account each pay period.1The Thrift Savings Plan (TSP). Contribution Types Everything else about TSP matching, how it’s split, when you own it, and how to avoid losing it, follows from that basic structure.
Who Gets the Match
Matching is limited to FERS civilians and BRS service members.2Office of the Law Revision Counsel. 5 USC 8432 – Contributions FERS employees are eligible from their first pay period on the job as long as they’re making employee contributions.3Federal Retirement Thrift Investment Board (FRTIB). Benefits TSP Letter to FERS New Hires BRS members receive the automatic 1% after 60 days of service, with matching following as they continue.4Military Pay. Fact Sheet – Defined Contribution
Employees under the older Civil Service Retirement System (CSRS) and service members who stayed in the legacy military retirement system get no matching and no automatic contribution. They can still contribute to the TSP and invest in the same funds, but the employer money was built into the newer retirement systems in exchange for reduced pension benefits.
How the Match Is Calculated
The employer money comes in two pieces, and they behave differently.
The first piece is an automatic 1% of basic pay that shows up each pay period whether you contribute or not.1The Thrift Savings Plan (TSP). Contribution Types
The second piece is the match, which is tied to what you contribute. Your agency or service matches the first 3% of basic pay you put in dollar-for-dollar, then matches the next 2% at 50 cents per dollar.1The Thrift Savings Plan (TSP). Contribution Types
At different contribution rates, that works out to:
- Contribute 0%: you still get the 1% automatic. Employer total: 1%.
- Contribute 3%: 1% automatic plus a 3% dollar-for-dollar match. Employer total: 4%.
- Contribute 5%: 1% automatic, 3% dollar-for-dollar, plus 1% from the 50-cent match on the last 2%. Employer total: 5%.1The Thrift Savings Plan (TSP). Contribution Types
- Contribute more than 5%: employer total stays at 5%. Extra contributions grow your balance but generate no additional match.
Contributing anything less than 5% is where the money quietly disappears. Someone stuck at 3% gives up a full percentage point of matching every pay period, and that gap compounds hard over a career.
What “Basic Pay” Means
The match is calculated on basic pay, not gross pay. For most FERS civilians, that’s your General Schedule salary plus locality pay. Overtime, bonuses, awards, and most premium pay don’t count. A couple of narrow exceptions apply, including law enforcement officers’ administratively uncontrollable overtime and customs officers’ overtime compensation, which do count toward basic pay for TSP purposes.5Thrift Savings Plan (TSP). Bulletin 05-17 – Elimination of Percentage Restrictions on Employee Contributions to the Thrift Savings Plan
For uniformed service members, basic pay means base military pay. Special pay, incentive pay, and bonuses aren’t in the matching calculation, though you can still contribute from those to build your balance faster.
Do You Keep the Match if You Leave?
Your own contributions and their earnings are 100% yours from day one. So are the matching contributions: both the dollar-for-dollar and the 50-cent portions vest immediately.6TSP. TSP Booklet TSPBK08 You could leave federal service the next pay period and take the match with you.
The 1% automatic contribution is the piece that takes time. FERS civilians generally must complete three years of federal service before the 1% and its earnings are fully vested.6TSP. TSP Booklet TSPBK08 BRS participants vest in two years.2Office of the Law Revision Counsel. 5 USC 8432 – Contributions Leave before hitting that mark and you forfeit the 1% contributions and everything they earned.
A few civilian positions vest in two years instead of three, including noncareer Senior Executive Service positions, Executive Level appointees, Schedule C employees in confidential or policy-determining roles, and Members of Congress and their staff.7Thrift Savings Plan (TSP). Thrift Savings Plan Vesting Requirements and the TSP Service Computation Date
The Trap That Cancels Your Match
The IRS caps employee contributions each calendar year. For 2026, the elective deferral limit is $24,500.8Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 The employer’s automatic and matching contributions don’t count against that cap.9Office of the Law Revision Counsel. 26 USC 402 – Taxability of Beneficiary of Employees Trust
But matching is calculated pay period by pay period, not annually. If you front-load contributions and hit $24,500 in September, your employee contributions stop, and the match stops with them. The 1% automatic keeps flowing, but every remaining pay period of the year produces no matching money.1The Thrift Savings Plan (TSP). Contribution Types
The fix is to spread contributions across all 26 pay periods. Divide $24,500 by 26 and you land near $942 per pay period, which keeps contributions flowing through the final paycheck of the year and preserves the match on every one. The 2026 first pay period begins December 14, 2025, so setting the election before then keeps distribution even from the start.
Catch-Up Contributions and the Match
If you turn 50 or older at any point in 2026, you can contribute above the $24,500 limit. The standard 2026 catch-up amount is $8,000, for a maximum employee contribution of $32,500. Participants aged 60 through 63 get a higher catch-up of $11,250 under a SECURE 2.0 provision, for a potential $35,750.8Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
The TSP uses a spillover method: once your regular contributions reach $24,500, additional amounts roll into the catch-up bucket automatically, with no separate election needed.10Thrift Savings Plan (TSP). Contributions Toward the Catch-Up Limit
For matching, the split matters. FERS civilians can receive matching contributions on catch-up dollars, up to the 5% of basic pay formula. BRS members cannot; catch-up contributions for uniformed service members are not matched.1The Thrift Savings Plan (TSP). Contribution Types Even distribution across pay periods matters more here, because for FERS employees it’s what keeps the match going on each catch-up dollar.
Traditional or Roth: Where the Match Lands
Whether you direct your own contributions to traditional or Roth, every dollar of employer money goes into your traditional balance.11The Thrift Savings Plan (TSP). Traditional and Roth TSP Contributions That includes the 1% automatic and every dollar of match. Roth contributions still qualify for matching; the match itself is always traditional.
The consequence appears at withdrawal. Traditional balances are taxed as ordinary income when you take them out. A federal employee who thought of themselves as “all Roth” during their career will still have a sizeable traditional balance built from decades of employer contributions and their earnings, and that piece is taxable on the way out while qualified Roth withdrawals are not.