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What should I do with my 401(k) when I retire?

There are three decisions hiding inside that question, and the one most people mean is the smallest of them. Here's the order I'd take them in, and why the middle one is where retirements actually get decided.

October 20, 2026 8 min read David Talley, CFP®, EA
What should I do with my 401(k) when I retire?

Three decisions are hiding inside that question, and the one people usually mean is the least important of the three. Where the money lives, your old plan or an IRA, moves the needle least. What the money is designed to do moves it most, and the answer gets more nuanced the closer you are to spending it. Whether somebody is managing the plan and the investments together, year after year, is the third. Take them in that order and the rollover part mostly answers itself.

The one people mean, and the two they skip

So you're retiring. You've saved diligently for a long stretch, and this is the question sitting on your mind. It's a good question. Most people just mean it in the wrong way.

When somebody asks me, they almost always mean: does it stay where it is, or does it roll into an IRA? That's real, and I'll answer it. It's also the smallest piece, and it tends to get answered out of order with the two that matter more.

Here's the order I'd use. Where does it live. What is it designed to do. Who's managing it from here. The first one takes an afternoon. The other two take the rest of your retirement.

The box in the sand

I took my daughter to the beach not long ago, and this is the picture I keep coming back to. You draw a little box in the sand and tell your kid, here's where you play. Anything you want inside the box. Don't leave the box.

That's a 401(k). You get a limited menu of investments. The sand inside the box is usually a lot like the sand everywhere else on the beach, and it's a perfectly fine place to play. Maybe there's something better a few feet over, and you can't reach it from in there.

An IRA is the whole beach. More options, more control, and moving it costs nothing in and of itself. It also opens the door to a lot of fees you didn't have before, and there's a reason regulators limit what a plan menu can hold. Fewer choices make it harder to hurt yourself. They don't make it impossible.

Most people, when they retire, move it to an IRA. That's usually where I land too. Just don't mistake that for having answered the question. Moving money from one place to another changes almost nothing on its own. Same dollars, same investments, new address.

Two things argue for slowing down before you move it. If you left the job in or after the year you turned 55, the plan lets you take money out without the extra 10 percent that usually applies before 59 and a half, and rolling to an IRA gives that up. That one has its own write-up at 401(k) withdrawal at 55 without the penalty. And if there's employer stock sitting inside the plan, there's a tax treatment you can lose by rolling it without looking, which we cover in company stock in a 401(k) when you retire.

Worth knowing the other direction too. Plenty of people assume the money is locked up until the day they quit. Past 59 and a half, a lot of plans let you move a balance out into an IRA while you're still working there and still contributing.

Two filters that decide how the money gets invested

This is the part people should be asking about. What do I own, and why.

While you're young the answer is simple enough that you can get away with not thinking hard about it. You've got thirty years, you're not touching it, so you own growth and you leave it alone. Inside of ten years from spending the money, and definitely inside of five, it stops being that simple.

Two filters. How long do these dollars have to live before somebody spends them. And how much bouncing around can you actually sit through without doing something you'll regret.

The second one gets eye-rolled, because risk tolerance is a box people fill out once and forget. It deserves better than that. The costliest investing errors I've watched people make weren't picking a bad fund. They were carrying more volatility than they could sleep through, and then selling at the worst possible moment.

Silos, because I'm just country enough for that

The first framework, and almost everybody we work with uses some version of it. Some people say buckets. I say silos.

Silo one is two or three years of the income you need from the portfolio, sitting somewhere that isn't going to move much. Money market, CDs, a short bond ladder. It won't grow much, and it may only keep pace with inflation. That's fine. Growth isn't its job. Its job is to be a bridge across a bad market so you never have to sell something that's down just to cover the grocery bill.

Silo two is the middle. Think of the old 60/40 mix, mostly stocks with enough bonds to take the edge off the swings. That might carry eight to ten years of income once silo one runs down.

Silo three is money you know you're not touching for fifteen years or longer, including the part that outlives you. That can be aggressive. You get to invest like you're young again with that piece, because the calendar says you can.

The whole point is being specific about which dollars have which job. A dollar somebody spends in three years and a dollar nobody spends for thirty are not the same dollar, and they shouldn't be invested the same way. The full version of that is the retirement paycheck in three buckets.

The reason it matters more than it sounds is the order your returns show up in. Two people can earn an identical average return over twenty years and land somewhere completely different, purely because one of them caught the bad years early while money was coming out. That's sequence of returns risk, and it's the single thing I'd want a new retiree to understand.

Guardrails, and how often you get to move the number

The second framework. You've probably heard some version of the 4 percent rule. I'll use 5 percent because the arithmetic is cleaner. A million dollars, fifty thousand a year, and in theory it holds up.

It's an old rule and it's roughly directionally right. People live longer now, taxes and inflation push on it, and how the money is invested changes the answer. All fine. Here's the part nobody mentions, and I wish I could say it to everybody who's retired into the last few good years.

Five percent of what?

You start with a million and take fifty thousand. Do you ever adjust that? If the market drops hard in year two and the balance is way down, you probably should. So the real question isn't whether. It's how often, and how big a swing before you touch it.

Adjust monthly and you'll get twitchy. You'll feel every wiggle, and what usually follows is retreating further toward safety than your own plan wants, trading long-term growth for the comfort of not changing this summer's vacation budget. Wait too long and the correction, when it finally comes, has to be a big one.

So we set guardrails instead. Something like a 20 percent move up or down triggers a look at the distribution. Anywhere between those rails, it's noise. Rest easy and quit watching it.

Notice what that does. It decides in advance when you're allowed to react, so the market doesn't get a vote on your mood.

The dial, and how far people turn it down

A lot of folks treat investing like a light switch. Safe or risky, one or the other. It's a dial, and there are an infinite number of positions in between.

What happens constantly is somebody retires, decides to pull back toward safety, which often makes good sense, and then pulls back much further than the plan ever asked for. Turning the dial up a little, nowhere near aggressive, would have been risk they'd have carried comfortably for thirty years. They never got precise about it, so it stayed where it landed.

That's the cost of imprecision, and it's invisible. Nobody mails you a statement showing what the extra caution came to. Which is why I think risk tolerance deserves more than the eye roll it gets.

Who's watching this in March of next year

The third decision, and let me say the obvious thing first: I'm an advisor, so I have a stake in how you answer it. Weigh that accordingly.

There's a difference between picking the investments and managing them. Selection is day one. What do you own, given the two filters above. Management is everything after that. Distributions coming out, one asset class running while another lags, conversions, the tax picture shifting as you move through your sixties. Somebody has to be holding all of that.

For people with a meaningful amount of money, I think it usually makes sense for that somebody to be a person whose job it is. Not because the math is hard. Because the reason you saved is so the money is there to spend rather than to manage and worry over. Most people don't speak tax. They don't track what's new in the investment world. And the plan, the investments and the taxes all press on each other, so they get decided at one table or they get decided badly. That's what the Keystone method is built around.

If you do hire someone, do it deliberately. You have to know two things clearly: what am I getting, and what am I paying. If either one is fuzzy, you can't really make the decision, so go get both in writing. And interview a couple of people. I recommend that even to people I'm close to. It's easier to leave an advisor than a spouse, and it's still no fun, and it takes a lot of meetings before anyone knows enough about your life to be genuinely useful. You don't want to spend that time twice.

So what do you actually do with it

Roll it or leave it, and don't burn three weeks on that part. Then spend real time on the rest. Give every dollar a job and a date. Decide ahead of time when you're allowed to change the withdrawal. Get honest about how much bouncing you'll tolerate, in both directions. And decide whether you want to be the one carrying all of it for the next thirty years.

The custodian question is easy. The other two are the retirement.

Questions people ask with the rollover paperwork sitting in front of them

Is it a mistake to just leave it in the plan?

Usually not. If the menu is decent and the fees are reasonable, leaving it there is a defensible answer, and it's the right one if you're counting on the age-55 rule or you're holding employer stock. What I'd push back on is leaving it there by default across three old jobs. When savings are scattered, the left hand doesn't know what the right hand is doing, and running one coherent portfolio out of four disconnected menus gets hard.

Does it matter which company holds the IRA?

Less than people expect. The custodian is mostly just who holds the money. What matters is what the account can own and what it costs you, and once you're out of the plan menu, most of the differences come down to fees and service.

How would I know if I'm being too conservative?

You'd start with the dollars themselves. If money you won't touch for twenty years is sitting in something that only keeps pace with inflation, that's a signal worth looking at. The honest test is whether you can name the job each piece of the portfolio is doing. If every dollar is carrying the same amount of risk, nobody has answered the question yet.

Keep exploring

Related reading on this site: 401k withdrawal at 55 without penalty, Company stock in 401k when you retire, Retirement paycheck three buckets, What is sequence of returns risk?, Keystone method.

When it helps, the free planning guides walks through the pieces in plain English, and you can start with a no-pressure Explore Call any time.

Sources

For discussion purposes only. This is general educational information and not individualized investment, tax, or legal advice. The million-dollar figure and the 5 percent withdrawal are hypothetical and used for illustration; your own numbers, tax situation, and plan rules should be reviewed with the right professional before you act on any of this.

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