
401(k) glossary
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Distributions & loans
In-service withdrawal
Short definition
An in-service withdrawal is a distribution taken from a 401(k) plan while the participant is still employed. Plans may allow it, most often after age 59½, but are not required to.
What an in-service withdrawal is
The rules depend on the type of money. Employee deferrals generally cannot be paid before age 59½ while the person is still employed, apart from hardship withdrawals and a few other exceptions. Employer contributions can be made available earlier if the plan says so, for example after a set number of years. Rollover and after-tax balances can be available at any time. The SECURE 2.0 Act added optional withdrawals, including up to $1,000 a year for an emergency personal expense.
Why it matters to employers
Which withdrawals to allow is a plan design decision, and the choices are written into the plan document. More options give employees flexibility but add administration, and money leaves the plan sooner. A withdrawal paid to the participant, when it could have been rolled over, has 20% withheld for federal tax, and the 10% early withdrawal tax can apply before age 59½.
Example
A 62-year-old employee wants to move $200,000 to an IRA while she keeps working. If the plan allows in-service withdrawals at 59½, she can do a direct rollover with no tax. If it does not, she has to wait until she leaves.
Common mistakes
Paying a withdrawal the plan document does not allow.
Confusing it with a hardship withdrawal, which requires a financial need and cannot be rolled over.
Not offering a direct rollover when the payment qualifies for one.
Sources
Internal Revenue Service: 401(k) resource guide, plan participants: General distribution rules (https://www.irs.gov/retirement-plans/plan-participant-employee/401k-resource-guide-plan-participants-general-distribution-rules), retrieved 2026-11-11 eCFR (National Archives): 26 CFR 1.401(k)-1: Certain cash or deferred arrangements (https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/section-1.401(k)-1), retrieved 2026-11-11 Internal Revenue Service: Retirement topics: Exceptions to tax on early distributions (https://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-exceptions-to-tax-on-early-distributions), retrieved 2026-11-11
General information, not legal or tax advice.

