A 401k vesting schedule is the timeline that decides how much of your employer’s 401(k) contributions you actually own if you leave your job. Your own salary deferrals are always 100% yours from day one, but matching and other employer money can require years of service before it fully belongs to you (Source: IRS, Retirement Topics: Vesting, 2024).
Vesting applies only to employer contributions. Federal law caps two 401(k) schedules: a 3-year cliff (0% then 100% at year 3) or a 2-to-6-year graded schedule (20% at year 2, rising to 100% at year 6). Your own deferrals, up to $24,500 in 2026, are always 100% vested (Source: IRC 411(a)(2)(B); IRS, 2024).
What is a 401(k) vesting schedule?
A 401(k) vesting schedule is the rule that sets how much of your employer’s contributions you own based on your years of service, so any unvested amount can be forfeited if you leave before the schedule is complete (Source: IRS, Retirement Topics: Vesting, 2024). Vesting is ownership. The schedule never touches the money you contribute yourself.
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This distinction matters most at a job change. You may see a large total account balance while a smaller vested balance is the amount you can actually keep, roll over, or withdraw. The gap between the two is employer money you have not yet earned the right to hold.
Are my own contributions ever subject to vesting?
No. Money you defer from your paycheck is always 100% vested, immediately and without a schedule. The IRS states that an employee’s own contributions, such as elective deferrals deducted from salary, are always 100% vested and owned by the employee (Source: IRS, Retirement Topics: Vesting, 2024). The statutory basis is IRC 411(a)(1) and ERISA 203(a)(1).
For 2026, the elective deferral limit is $24,500, with an $8,000 catch-up at age 50 and up, and an enhanced $11,250 catch-up at ages 60 to 63 under SECURE 2.0 (Source: IRS Notice 2025-67, 2025). Every dollar of those deferrals is 100% vested by definition.
What are the three types of vesting: immediate, cliff, and graded?
A 401(k) plan generally uses one of three vesting approaches: immediate, cliff, or graded. Immediate vesting means employer contributions are yours right away. Cliff vesting gives you nothing until a set date, then 100% at once. Graded vesting hands you ownership in increments over several years (Source: IRS, Retirement Topics: Vesting, 2024).
How does cliff vesting work?
Cliff vesting means you are 0% vested in employer contributions until you reach a specific service milestone, at which point you jump straight to 100%. For 401(k) matching and nonelective contributions, federal law caps the cliff at three years of service (Source: IRC 411(a)(2)(B)(ii)). Leave one day before the cliff and the entire unvested employer balance can be forfeited.
How does graded vesting work?
Graded vesting increases your ownership of employer contributions in steps each year until you reach 100%. The statutory maximum graded schedule for a 401(k) runs from 20% at year two to 100% at year six (Source: IRC 411(a)(2)(B)(iii)). A plan may adopt a faster pace, such as 20% per year over five years, because federal law sets only the slowest permitted vesting, not a required speed.
What is immediate vesting?
Immediate vesting means employer contributions are 100% yours as soon as they hit your account, with no waiting period. Safe harbor 401(k) contributions are required to be immediately nonforfeitable, meaning 100% vested when made (Source: Treas. Reg. 1.401(k)-3(k)(2); IRC 401(k)(12)(E)(i)). SEP and SIMPLE IRA employer contributions are also always 100% vested (Source: IRS, Retirement Topics: Vesting, 2024).
What are the IRS maximum vesting schedules?
Federal law sets the slowest a 401(k) plan may vest employer matching and nonelective contributions: a 3-year cliff or a 2-to-6-year graded schedule. These maximums apply to contributions made after December 31, 2006, under the Pension Protection Act of 2006 (Source: IRS, Issue Snapshot: Vesting schedules for matching contributions, 2023). A plan may vest faster, but never slower.
| Years of service | Maximum graded schedule (vested %) | Maximum cliff schedule (vested %) |
|---|---|---|
| 1 | 0% | 0% |
| 2 | 20% | 0% |
| 3 | 40% | 100% |
| 4 | 60% | 100% |
| 5 | 80% | 100% |
| 6 | 100% | 100% |
The graded percentages above are the identical 0/20/40/60/80/100 table published by the IRS (Source: IRS, Retirement Topics: Vesting, 2024). Note the common error to avoid: the legal maximum graded schedule starts at 20% at year two, not 20% after year one, and reaches 100% at year six.
What happens to my 401(k) match if I quit before I’m vested?
If you leave before you are fully vested, the unvested portion of employer contributions is forfeited. The IRS states that amounts not vested may be forfeited when employees are paid their account balance at termination (Source: IRS, Retirement Topics: Vesting, 2024). Your own deferrals and any vested employer money stay with you and can be rolled over.
A concrete forfeiture walkthrough
Suppose your account holds $8,000 in employer match and you are on the 2-to-6-year graded schedule. If you leave at year four, you are 60% vested, so you keep $4,800 and forfeit $3,200. Leave one year later at year five and you are 80% vested, keeping $6,400. The timing of a departure can change the retained amount by a full tier.
Only vested amounts are eligible to roll over, so the forfeiture happens before any rollover to an IRA or new plan (Source: IRS Publication 575, 2025). Forfeited amounts stay in the plan and are used to reduce future employer contributions or pay plan expenses, a practice at the center of recent 401(k) forfeiture litigation.
Vested balance vs. total balance: how do I check mine?
Your total 401(k) balance includes every dollar in the account; your vested balance is only what you would keep if you left today. To find your vested amount, multiply your employer-contribution balance by your vested percentage, then add all of your own deferrals, which are always 100% vested (Source: IRS, Retirement Topics: Vesting, 2024).
A plan’s vesting schedule and your current standing are generally documented in several places:
- The Summary Plan Description (SPD) states the vesting schedule the employer chose.
- The benefits handbook or onboarding packet often repeats the same language.
- Annual or quarterly account statements usually show a separate vested balance.
- HR and the plan administrator can confirm years of service and the current vested percentage.
Knowing your vested balance matters before you move money. A job change can open the door to a Roth conversion of the vested amount, and deciding how much to convert or when the conversion breaks even depends on what you can actually roll over.
How does SECURE 2.0 change vesting for long-term part-time workers and rehires?
The SECURE 2.0 Act changed vesting math for long-term part-time (LTPT) employees. For vesting of employer contributions, each 12-month period with at least 500 hours of service generally counts as a year of service for workers who become eligible under the LTPT rule (Source: IRS Notice 2024-73, 2024). This amendment applies to plan years beginning on or after January 1, 2025.
Workers eligible solely under the LTPT rule are those age 21 or older with 500-plus hours of service in two consecutive 12-month periods, and they must be allowed to make deferrals (Source: IRS Notice 2024-73, 2024). The 500-hour standard lets part-time employees accrue vesting service that a traditional 1,000-hour rule would have excluded.
For rehires, whether earlier service is reinstated is governed by the break-in-service provisions in the plan document (Source: IRC 411(a)(6); ERISA 203(b)). Reviewing your SPD can clarify whether a prior stint still counts toward vesting.
What events make you 100% vested automatically?
Two events trigger automatic 100% vesting in employer contributions regardless of your years of service: reaching the plan’s normal retirement age and a full or partial termination of the plan (Source: IRC 411(a), 2006). If your employer ends the plan or your division is closed, unvested employer money generally becomes fully yours at that moment.
These triggers sit on top of the ordinary path of completing the vesting schedule. They are the reason a participant near retirement age is often fully vested even in a plan with a slow schedule, and they matter when planning distributions, required minimum distributions at age 73, or a conversion of vested funds.
How common is each vesting schedule?
Claims that 3-to-5-year vesting is typical are common but rarely cite plan-level data. Federal rules define what schedules are permitted, not how often each is used; recordkeeper surveys and Bureau of Labor Statistics reports track actual usage. What is firmly established is the ceiling: no 401(k) plan may vest employer contributions more slowly than a 3-year cliff or a 6-year graded schedule (Source: IRC 411(a)(2)(B)). Immediate vesting is standard in safe harbor plans.
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Frequently asked questions
What does it mean to be vested in a 401(k)?
Being vested means you own that portion of the account and cannot lose it by leaving your job. You are always 100% vested in your own deferrals; vesting schedules apply only to employer contributions such as matching money (Source: IRS, Retirement Topics: Vesting, 2024). Once vested, employer money is yours to keep or roll over.
How long does it take to be fully vested in a 401(k)?
It depends on your plan, but federal law caps 401(k) employer-contribution vesting at a 3-year cliff or a 6-year graded schedule (Source: IRC 411(a)(2)(B)). A plan may vest faster, and safe harbor contributions are required to be immediately vested (Source: Treas. Reg. 1.401(k)-3(k)(2)). Your own deferrals are fully vested at all times.
What is the difference between graded and cliff vesting?
Cliff vesting gives you 0% ownership of employer contributions until a set date, then 100% all at once, capped at three years for 401(k) plans. Graded vesting increases ownership in steps, with the legal maximum reaching 20% at year two and 100% at year six (Source: IRC 411(a)(2)(B)). Cliff is all-or-nothing; graded is gradual.
What happens to my 401(k) match if I quit before I’m vested?
The unvested portion of your employer match is forfeited when you leave and take your balance. If you are partially vested, you keep the vested share. For example, at 60% vested with $8,000 in match, you keep $4,800 and forfeit $3,200 (Source: IRS, Retirement Topics: Vesting, 2024). Vested money can be rolled over.
Can you lose your 401(k) if you are not vested?
You can lose only the unvested portion of employer contributions, which is forfeited if you leave before the schedule completes. You never lose your own deferrals or any vested employer money; those remain 100% yours and can be rolled over (Source: IRS, Retirement Topics: Vesting, 2024). Being unvested affects employer money only, not your contributions.
Do all 401(k) plans have a vesting schedule?
No. Employer contributions may vest immediately, and safe harbor 401(k) plans are required to vest employer money immediately (Source: Treas. Reg. 1.401(k)-3(k)(2)). A plan only carries a cliff or graded schedule if the employer chose one for matching or nonelective contributions. Your own elective deferrals are never subject to a schedule.
