Leaving a Job? Your 401(k) Options: Leave It, Roll It Over or Cash Out

Changing jobs brings a decision many workers put off: what to do with the 401(k) left behind. The choice matters more than it seems. One option keeps decades of tax-deferred growth intact, while another can trigger income tax, a penalty and lost compounding in a single step.

There are four basic paths. This guide explains each one, the tax rules that apply and the questions that usually decide which path fits a particular situation. It is general information, not advice for any individual.

The four options at a glance

Option 1: Leave it in the old plan

Many plans allow former employees to keep their balance where it is. Nothing is taxed, the money stays invested and you can still move it later.

This can make sense when the plan offers low-cost institutional funds that are not available elsewhere, or when the person expects to use the rule of 55 described below. The drawbacks are practical: you can no longer contribute, you need to keep your address and beneficiary details up to date with a former employer, and several old accounts can be hard to track and rebalance.

Plans may cash out or automatically roll over small balances after you leave. Federal law sets the thresholds and plans set their own rules within them, so check your plan documents.

Option 2: Move it to your new employer's plan

If the new employer's plan accepts incoming rollovers, consolidating keeps everything in one place under one set of rules. That can simplify rebalancing and, later, required minimum distributions. While you are still working for the sponsoring employer, many plans allow you to delay required distributions from that employer's plan, an exception that does not apply to IRAs or to plans from former employers.

The trade-off is the menu. Some workplace plans offer excellent low-fee funds; others are limited or expensive. Compare the fund lineups and fees of the old plan, the new plan and an IRA before deciding.

Option 3: Roll it into an IRA

Rolling over into an individual retirement account gives the widest investment choice, from index funds to individual stocks and bonds, and lets you choose the provider. Many people roll several old 401(k)s into one IRA to keep things simple. For how the account types compare more broadly, see our guide to 401(k)s, traditional IRAs and Roth IRAs.

A few points to check:

• Match the tax type. Pre-tax money goes into a traditional IRA and Roth 401(k) money into a Roth IRA to keep the rollover tax-free.
• Converting is a separate decision. Moving pre-tax 401(k) money into a Roth IRA is a Roth conversion and is taxed as ordinary income in that year. Our explainer on Roth conversions covers how that works.
• Protection from creditors can differ. Workplace plans covered by federal law generally have broad protection from creditors. IRAs have federal protection in bankruptcy up to a limit that is adjusted periodically, and protection outside bankruptcy depends on state law.
• Some plan features do not carry over, such as 401(k) loans and the rule of 55.

Option 4: Cash out

Taking the money as cash is the simplest choice and often the most expensive. Pre-tax money withdrawn is taxed as ordinary income. If you are under age 59½, an additional 10% tax usually applies unless an exception fits. The plan must also withhold 20% for federal income tax, which may or may not cover the final bill.

Beyond the immediate tax, cashing out removes the money from tax-deferred growth. A balance that seems small early in a career can represent a meaningful share of retirement savings decades later.

Direct vs. indirect rollovers

How the money moves matters as much as where it goes.

• Direct rollover. The old plan sends the money straight to the new plan or IRA provider, sometimes as a check made out to the new account. No tax is withheld and there is no deadline to manage.
• Indirect rollover. The plan pays the money to you. The plan must withhold 20% for taxes, and you have 60 days to deposit the full original amount into an eligible account. To roll over the whole balance, you must make up the withheld 20% from other funds; the withholding is credited when you file your tax return. Any amount not redeposited is generally treated as a taxable distribution and may face the 10% penalty.

For most people changing jobs, a direct rollover avoids paperwork mistakes and cash-flow strain. The IRS also limits IRA-to-IRA indirect rollovers to one in any 12-month period, but that limit does not apply to direct transfers or to rollovers from a 401(k) to an IRA.

Rules that can change the answer

The rule of 55

If you leave your job in or after the calendar year you turn 55, withdrawals from that employer's 401(k) are generally exempt from the 10% additional tax, though still subject to income tax. Certain public safety employees can qualify earlier. The exception applies to the plan of the employer you left, not to an IRA. Someone who expects to need money between 55 and 59½ may prefer to leave some or all of the balance in that plan rather than rolling it over.

Outstanding 401(k) loans

If you leave with an unpaid plan loan, the balance is often subtracted from your account and treated as a distribution, called a loan offset. You generally have extra time to avoid tax on it, typically until your tax-return due date including extensions, by depositing an equal amount into an IRA or eligible plan. Check the plan's loan rules before leaving.

Company stock and net unrealized appreciation

If your 401(k) holds your employer's stock that has risen in value, a special rule called net unrealized appreciation (NUA) may apply. Under certain conditions, the stock can be distributed in kind to a taxable brokerage account. You pay ordinary income tax on the original cost basis, while the growth is taxed at long-term capital gains rates when sold. Rolling the stock into an IRA gives up that treatment. NUA has strict requirements, so it is worth discussing with a tax professional before moving any shares.

A short checklist before you move anything

1. Find your plan's summary plan description and recent statement.
2. Confirm whether you can leave the money and whether the new plan accepts rollovers.
3. Compare fees and investment options across the old plan, new plan and an IRA.
4. Separate pre-tax, Roth and after-tax money and note any company stock or loans.
5. Ask for a direct rollover and confirm how the check should be made out.
6. Update beneficiaries on whichever account you end up using.

Most people end up with a straightforward answer once these facts are on the table. When company stock, a loan or an early-retirement plan is involved, the details are worth checking with the plan administrator and a qualified tax professional before money moves.