An old 401(k) is an account still sitting at a former employer. Capitalize's 2025 research counts 31.9 million forgotten 401(k) accounts nationally, holding $2.13 trillion — roughly a quarter of all 401(k) savings. Finding yours usually takes a few minutes. Deciding what to do with it takes real thought, and that's the part most articles skip.
How to actually find it
Most people don't lose track of a 401(k) on purpose. Fidelity's 2026 retirement study found that the average American has worked for six employers over a career, and each move is a moment where a decision about that account was easy to postpone — so it got postponed, and then forgotten. Capitalize puts the average forgotten balance at $66,691 as of 2025, up sharply from where it stood just a few years earlier. Statements start going to an old address or an inbox nobody checks anymore, and the account just sits there.
If you know roughly where you worked, start with the former employer's HR department or the plan's recordkeeper — the name is usually on old statements or paycheck stubs. If you don't remember, or the company no longer exists, three places are worth checking in order: the Department of Labor's plan search tools for a company's filed retirement plan records, your state's unclaimed property database (a surprising number of small forgotten balances end up here), and the National Registry of Unclaimed Retirement Benefits. None of these require you to remember an account number — a name and an approximate employment date range is usually enough.
That's the SEO-friendly part of this article, and it's genuinely useful. But finding the account is the easy 20%. What you do with it once you've found it is the part that actually shapes your retirement.
It's not all-or-nothing
The most common misconception isn't about where the money is — it's about what your options are once you find it. Most people assume there's a single correct move, usually "roll it into whatever I'm doing now," and that everything else in their financial life needs to follow that same rule. That isn't how it works, and it isn't how any individual account has to be treated. As Brad Stevens, founder of BAS Financial, puts it when clients bring him an old account:
"Next to the refrigerator there's a drawer. I call it my junk drawer. A lot of times, people's financial world is very similar to this."
He means it literally. Most people's financial lives accumulate the way a junk drawer does — a benefits account here, an old 401(k) there, a savings account nobody's touched in years. Nobody sat down and organized it on purpose; it just piled up as life happened. The batteries and the pens don't need to go in the same place just because they ended up in the same drawer, and neither do your old 401(k) and your current investments. Each account can get its own decision, made on its own terms.
The same logic applies to the choices sitting in front of that old 401(k) specifically. It isn't a binary between "leave it exactly as it is" and "move everything, all at once, into something new." There's a real menu of options, and which one fits depends on the account, the fees, and what you're already doing everywhere else.
Three real options, once you've found it
Once you've located an old 401(k), there are generally three paths worth weighing, not one default answer. The IRS lays out the mechanics of each rollover method — direct transfer, trustee-to-trustee, and the 60-day option — on its own rollovers of retirement plan and IRA distributions page, which is worth a look before you initiate one.
| Option | What it involves | Who it tends to fit | What to watch for |
|---|---|---|---|
| Leave it where it is | No action. The account stays with the former employer's plan and its existing investment lineup. | Plans with genuinely low, competitive fees and investment options you'd actually choose on their own merits. | Statements can stop reaching you after an address or job change, and a plan's fees or fund lineup can change without much notice. |
| Roll it into an IRA | A direct, trustee-to-trustee transfer into a traditional or Roth IRA, consolidating the account outside the old employer's plan. | People who want one household view of their retirement savings, or whose old plan carries higher administrative fees than a comparable IRA. | A direct rollover avoids the mandatory 20% federal withholding that applies to indirect distributions, and IRA-to-IRA rollovers are limited to one every 12 months. Rolling pre-tax money into a traditional IRA can also complicate a future backdoor Roth contribution — worth a conversation before you move it. |
| Manage it directly (self-managed persona) | Depending on the account type, choosing and monitoring the underlying investments yourself rather than defaulting to a target-date fund or a hands-off allocation. | Investors who want more control and are comfortable with the added responsibility that comes with it. | More flexibility means more choices to actively manage — fund selection, rebalancing, and ongoing monitoring don't happen automatically. There's no one built into the structure to lean on for those calls. |
Why "manage it myself" isn't automatically the harder answer
The self-managed option gets treated like the advanced-user path, and sometimes it is. But it's worth separating two different questions: whether you have the option to manage an account directly, and whether you should. Those are answered differently for every person, and the honest answer to the second one is often "it depends on how it's already going." If your current approach is doing everything you need it to do, or you're already managing it well, there may be no inherent reason to change course just because a new option exists.
That's also where account type matters more than most articles admit. An old 401(k) still sitting in a former employer's plan is structurally different from an IRA — plan-level features vary widely by employer, and not every option available in one shows up in the other. This is a genuine "it depends on your specific account" question, not a one-size-fits-all answer, and it's exactly the kind of thing worth a real conversation before you assume either the plan or an IRA is off the table.
A real example: sometimes the answer changes years later
Brad worked with a couple who began the planning process together several years ago — insurance coverage, cash flow strategy, and rolling the wife's old 401(k) into an IRA he could manage directly. At the time, the husband asked whether Brad could also help manage his own employer's active 401(k). He didn't have anyone to guide him on the investment choices, and at that point there wasn't a way to do it — Brad had to say no.
Years later, after BAS Financial found a way to manage that kind of account directly, Brad went back to the husband and let him know the option now existed. The husband was glad to hear it — and pointed out, fairly, that he'd first asked five years earlier.
The point isn't the specific mechanism that changed. It's that "no" to a question like this isn't always permanent, and it's worth asking again periodically rather than assuming the first answer is the last one. This example is provided solely for illustrative purposes, has been anonymized and modified, and should not be interpreted as representative of any client's experience or indicative of future results.
Frequently asked questions
How do I see if I have any money in an old 401(k)?
Start with the former employer's HR department or the plan's recordkeeper, using old statements or pay stubs to identify who held the plan. If that trail is cold, check the Department of Labor's plan search tools, your state's unclaimed property database, and the National Registry of Unclaimed Retirement Benefits.
How long can a company hold your 401(k) after you quit?
There's no time limit on a plan holding a former employee's balance above the plan's cash-out threshold — it can sit there indefinitely unless you act. Smaller balances are often subject to automatic rollover or cash-out provisions under the plan's own rules, which is one more reason it's worth checking rather than assuming the account is still sitting untouched.
Is it okay to leave money in an old 401(k)?
It can be, if the plan's fees are genuinely competitive and the investment lineup still fits your goals. The risk isn't leaving it — it's leaving it unmonitored. Fees and fund options can change after you've stopped paying attention to plan notices.
Can I close my 401(k) and take all the money?
You generally can, but a direct cash-out from a former employer's plan is treated as a taxable distribution and can trigger an early-withdrawal penalty depending on your age, on top of the tax owed. Rolling the balance over — directly, trustee-to-trustee — avoids that outcome if the goal is to keep the money working toward retirement.
What's the best thing to do with a 401(k) after leaving a job?
There isn't a single best answer — it depends on the plan's fees, its investment lineup, and what you're already doing with the rest of your retirement savings. Leaving it, rolling it into an IRA, and managing it directly are all legitimate options; the right one is specific to the account.
If you've found an old 401(k) or a self-managed IRA that hasn't had a real look in a while, BAS Financial's Old 401(k) & Self-Managed IRA Review walks through what's actually in it and which of these paths fits — no pressure to consolidate anything you don't need to.
This material is provided for educational and informational purposes only and should not be construed as investment, tax, legal, or retirement planning advice. Decisions regarding retirement plan distributions and rollovers should be made only after careful consideration of investment options, fees and expenses, services, creditor protections, distribution options, and other plan features. The appropriate option will vary based on an individual's circumstances, objectives, risk tolerance, and financial situation. Consult a qualified financial, tax, and legal professional before making any retirement account or rollover decision.