If you are covered by the Federal Employees Retirement System (FERS) or the military’s Blended Retirement System (BRS), your employer deposits an amount equal to 1% of your basic pay into your Thrift Savings Plan account every pay period. This is the TSP agency automatic 1% contribution, and it comes from the agency’s budget rather than your paycheck. You get it whether or not you contribute a dollar of your own money.1Thrift Savings Plan. Contribution Types The important caveat: the money shows up in your account right away, but you don’t own it until you meet a vesting requirement.
Who Gets the Automatic 1%
Eligibility depends on your retirement system, not your grade, agency, or job title. If your position is covered by FERS, your agency is required by 5 U.S.C. § 8432(c)(1) to deposit 1% of basic pay each pay period into your TSP.2Office of the Law Revision Counsel. 5 USC 8432 – Contributions Most civilian federal employees hired after 1983 are FERS.
Uniformed service members qualify if they are enrolled in BRS. That covers anyone who first entered military service on or after January 1, 2018, along with those who had fewer than 12 years of service on December 31, 2017 and opted into BRS.3Office of the Law Revision Counsel. 5 USC 8440e – Members of the Uniformed Services
Employees under the older Civil Service Retirement System (CSRS) do not receive the 1%. CSRS was built around a more generous pension, and the statute that authorizes TSP agency contributions excludes those participants.
When It Starts and How Much It Is
For civilian FERS employees, the deposit begins with the first pay period after you enter federal service. There is no waiting period.2Office of the Law Revision Counsel. 5 USC 8432 – Contributions
BRS service members face a short delay. Automatic contributions begin 60 days after entering a uniformed service, and they stop after 26 years of uniformed service.3Office of the Law Revision Counsel. 5 USC 8440e – Members of the Uniformed Services
The deposit is exactly 1% of basic pay for the pay period. Basic pay is your base salary rate. Overtime, bonuses, special pay, and allowances do not count. You don’t file any form to receive it; the money moves from the agency to your account automatically.
How the 1% Fits with the Agency Match
The 1% is only part of what the government will put into your TSP. FERS and BRS participants can also earn agency matching contributions, but those require you to contribute your own money. The match is dollar for dollar on the first 3% of basic pay you contribute, plus 50 cents on the dollar for the next 2%. The maximum match is 4%.1Thrift Savings Plan. Contribution Types
Add the automatic 1% to the full 4% match and the government can contribute up to 5% of basic pay each pay period. The 1% arrives no matter what. The other 4% only appears if you contribute at least 5% of your own pay. An employee contributing nothing still gets the free 1%, but forfeits four percentage points of employer money.
Vesting: When the 1% Becomes Yours
You can see the deposits in your TSP balance from day one, but you don’t own them until you satisfy a vesting requirement. If you leave federal service before you’re vested, the automatic contributions and every dollar of earnings they generated are forfeited.
The vesting period depends on your position:
- Most FERS civilians: 3 years of federal service.4Thrift Savings Plan. Thrift Savings Plan Vesting Requirements and the TSP Service Computation Date
- Noncareer Senior Executive Service, Executive Schedule appointees, and Schedule C (confidential or policy-determining) positions: 2 years.2Office of the Law Revision Counsel. 5 USC 8432 – Contributions
- Uniformed service members under BRS: 2 years.2Office of the Law Revision Counsel. 5 USC 8432 – Contributions
Once you cross the threshold, the funds are yours permanently, even if you later resign, transfer, or retire. Your own contributions and the 4% agency match are separate; you are always fully vested in those from the start. The automatic 1% is the only piece of your TSP that carries a vesting rule.
Death in Service
An employee who dies while still working is automatically vested regardless of length of service. Beneficiaries receive the full account balance, including all automatic contributions and earnings.4Thrift Savings Plan. Thrift Savings Plan Vesting Requirements and the TSP Service Computation Date
Leave Without Pay
Long stretches of leave without pay can delay vesting. Up to six months of nonpay status in a calendar year still counts as creditable service. Anything beyond six months generally does not, so your TSP Service Computation Date shifts and your vesting date moves out with it. Two exceptions preserve full credit: LWOP tied to a qualifying on-the-job injury with workers’ compensation, and separations to perform military service if you return under USERRA.4Thrift Savings Plan. Thrift Savings Plan Vesting Requirements and the TSP Service Computation Date
Leaving Before You’re Vested
If you separate before meeting the vesting requirement, the agency automatic contributions and their earnings are forfeited back to the TSP. An employee who resigns at two years and eleven months walks away with nothing from the 1%.
Forfeited funds can be restored in specific situations:
- Reemployment within 30 calendar days. If you move from one federal job to another within 30 days, you aren’t treated as separated for TSP purposes, and the contributions continue as if nothing happened. If a losing agency mistakenly reports you as separated, the new agency corrects it.5Thrift Savings Plan. TSP Forfeitures and Forfeiture Restoration Procedures
- Military service under USERRA. If you left civilian federal employment for military duty before meeting the vesting requirement, USERRA entitles you to have the forfeited contributions restored when you’re reemployed.5Thrift Savings Plan. TSP Forfeitures and Forfeiture Restoration Procedures
- Agency error. If the forfeiture happened because your agency submitted the wrong vesting code, employment code, or service computation date, the agency must correct its records and request restoration.5Thrift Savings Plan. TSP Forfeitures and Forfeiture Restoration Procedures
Restorations must be requested by the employing agency; the TSP will not accept the request directly from the employee.5Thrift Savings Plan. TSP Forfeitures and Forfeiture Restoration Procedures
Tax Treatment and Where the Money Goes
Agency automatic contributions always land in your traditional (pre-tax) TSP balance, even if you direct your own contributions to the Roth side.6Thrift Savings Plan. Traditional and Roth TSP Contributions That 1% will be taxed as ordinary income when you withdraw it in retirement.
If you never picked an investment fund, the 1% goes into a default. For civilians enrolled on or after September 5, 2015 and for all BRS members, the default is the Lifecycle (L) Fund closest to your expected retirement age. For anyone enrolled before that date who never made an election, contributions default to the Government Securities Investment (G) Fund.7Thrift Savings Plan. Summary of the Thrift Savings Plan The G Fund is very conservative, so long-tenured employees who never made an active election may have years of agency contributions sitting in a low-yield fund.
Checking That You Actually Received It
Agencies sometimes miss the 1% deposit or short a pay period. When that happens, the agency must submit the missed contributions to the TSP, and the record keeper calculates “breakage” — the investment earnings you lost while the money was out of your account. The missed contributions and the breakage both get posted, and the agency pays for it.8eCFR. 5 CFR Part 1605 Subpart B – Correction of Agency Errors
Timing matters. If the agency discovers the error within six months, it must correct it promptly. After six months the agency has discretion whether to fix the problem, though it still must act promptly if it does. You can also file a claim yourself. The agency has 30 days to respond and, if it denies the claim, must provide written reasons and an appeal process.8eCFR. 5 CFR Part 1605 Subpart B – Correction of Agency Errors
Check your leave and earnings statement periodically. If the “Agency Auto 1%” line is missing or wrong, put a written correction request in with your HR or payroll office as soon as you notice. Claims filed within six months of the error stand on much stronger footing than those filed later.
The same rule applies to back pay. When a FERS employee receives a back-pay award or retroactive pay increase, the agency must also compute and deposit the 1% contributions that would have been made during the affected period, regardless of whether you choose to make up your own contributions for that time.9eCFR. 5 CFR 1605.13 – Back Pay Awards and Other Retroactive Pay Adjustments If a settlement or grievance award includes back pay, confirm afterward that the matching 1% adjustment appears in your TSP.
Touching the 1% While Still Employed
Access to the 1% during your working years is limited. If you’re at least 59½ and vested, you can include the automatic contribution balance in an age-based in-service withdrawal. You cannot include it in a financial hardship withdrawal at any age. Hardship withdrawals draw only from your own contributions and their earnings.10Thrift Savings Plan. In-Service Withdrawals Along with the vesting rule, this is the other place where the 1% behaves differently from the rest of your TSP balance.