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Next Gen Econ > Personal Finance > Retirement > What Happens to Money in a 401(k) That Isn’t Vested?
Retirement

What Happens to Money in a 401(k) That Isn’t Vested?

NGEC By NGEC Last updated: May 16, 2025 7 Min Read
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When you participate in a 401(k) plan, both your contributions and your employer’s contributions can help you build retirement savings. However, not all the money in your account may fully belong to you right away. Employer contributions typically follow a vesting schedule, meaning you earn the right to keep those funds over time. If you leave your job before becoming fully vested, you might forfeit some or all of the employer contributions made on your behalf. 

A financial advisor can help you assess how vesting affects your retirement strategy. 

Vesting Basics

Vesting refers to the percentage of employer contributions to your 401(k) that you own outright. Your salary deferrals, the money you contribute, are always 100% vested. No matter when you leave your job, you cannot lose your contributions. However, your employer’s matching or profit-sharing contributions are usually subject to a vesting period. 

If you leave your job before becoming fully vested, you will forfeit any unvested employer contributions and the investment earnings they generated.

So, what happens to 401(k) money that is not vested? Typically, the money you forfeit returns to the employer’s 401(k) plan to cover administrative costs. The company may also redistribute it among the remaining participants.

What Happens to Money in a 401(k) That Isn’t Vested?

If you leave your job before you are fully vested, you forfeit the unvested portion of employer contributions and any associated earnings. These amounts stay in the employer’s plan. This is either to reduce costs or to share among other employees, depending on the plan’s terms.

However, any vested funds, including your contributions and vested employer contributions, are yours to keep. You can choose to leave the money in the plan or roll it over into another retirement account. You can also cash it out, although this can trigger significant taxes and penalties.

Properly managing what happens to both vested and unvested funds when you change jobs can have a lasting impact on your retirement savings. If you are unsure of your vesting status or the best rollover strategy, a financial advisor can help clarify your options.