401(k) brokerage window
Self-Directed Brokerage Account in Your 401(k): What the Window Changes, and What It Doesn't
A brokerage window does not raise your limit and does not lower your costs. It changes what you can hold inside the plan and who can manage it.
A self-directed brokerage account is a feature of your 401(k), not a separate account. The money stays in the plan and follows the plan's rules. What changes is that a short fund menu becomes a much wider one, and that an outside advisor may be able to manage a balance that used to sit on its own island. If the balance is large, that second part is usually the reason to care.
Does this sound like your plan?
Readers usually arrive here thinking:
- “My plan has a brokerage window and I have never used it. I'm not sure whether I should.”
- “I have a large balance in the plan and nobody is looking at it next to everything else.”
- “The fund menu is thin, but I don't want to take on a pile of trading costs to fix that.”
- “I heard an advisor can manage a 401(k) I'm still contributing to. Is that real?”
If you have already left the employer, the window does not stay behind as a separate account. It goes with the plan balance, which makes it part ofthe decision about an old 401(k). This page is for a plan you are still in.
Start here
Three things the window leaves exactly as they were
Most of the confusion is about what it changes. The shorter list is what it doesn't.
The limit
For 2026 the employee deferral limit is $24,500, with $8,000 more at age 50 and over and $11,250 at ages 60 to 63. The window changes what you can buy with the money, not how much goes in.
The plan's rules
It is still a 401(k) account. The plan's rules on loans, withdrawals and rollovers still apply, and so does the tax treatment of the money, whether it is pre-tax or Roth.
Where the oversight stops
The plan's fiduciary selects and monitors the core menu. That oversight does not extend the same way into what you buy through the window. More freedom comes with more responsibility, yours or your advisor's.
The basics, in plainer terms and with the cost side laid out, are inthe self-directed brokerage window in your 401(k): what it is and when to use it. This page assumes you have read that or know it, and goes on to the decision.
Before anything else
How to find out whether your plan has one
Four places to look, in the order that costs the least effort.
Step 1: Search the plan's website for the names
Plans label it differently: brokerage window, self-directed brokerage account, or a recordkeeper's product name such as Schwab's Personal Choice Retirement Account (PCRA) or Fidelity's BrokerageLink.
Step 2: Read the summary plan description
It says whether the option exists, who may use it, and any conditions. Your plan administrator or HR group can send it.
Step 3: Check your fee disclosure
The Department of Labor says plan fiduciaries are to disclose plan, investment and fee information to participants. Individual service fees are charged separately to the accounts of people who use a particular plan feature, so the window's cost should show up there or in the recordkeeper's schedule.
Step 4: Ask the recordkeeper two direct questions
Can an outside advisor be given access to the window in this plan, and is there a cap on how much of the balance can sit in it. Both are plan-specific.
Three places the same money can sit
The core menu, the window, or an IRA after you leave
The question is rarely whether the window is good. It is what each place gives you and what it takes away.
| Compared | Core plan menu | Brokerage window | IRA after you leave |
|---|---|---|---|
| What you can hold | The plan's chosen funds. | A wider list of funds, ETFs and individual stocks, sometimes bonds. Varies by plan. | Whatever the IRA custodian offers. |
| Who watches it | The plan fiduciary selects and monitors the menu. | You, or an advisor you hire if the plan allows it. | You, or an advisor you hire. |
| Still tied to the plan | Yes. | Yes. Same limit, same rules on loans, withdrawals and rollovers. | No. The money has left the plan. |
| What it can close off | Nothing beyond the menu. | Nothing in the plan, but it adds cost and responsibility. | Plan-only features, such as the tax treatment of appreciated company stock. |
| When it is available | While you are in the plan. | While you are in the plan, if the plan offers it. | Generally after you leave the employer. Some plans allow earlier. |
If the plan holds appreciated employer shares, the last column has a trap in it that is worth knowing before any form is signed, andnet unrealized appreciationis the post that works it through.
What it costs
The cost sits on top of the plan's own
Fees compound, and that is where they do their damage.
The window usually carries costs the core menu does not: an annual account fee, commissions on some trades, and the expense ratio of whatever you buy. The Department of Labor's own guide to plan fees shows how a small difference in fees and expenses compounds over a working career, and says plainly that fees and expenses may substantially reduce the growth of an account. Read it atA Look at 401(k) Plan Fees.
Keep in mind that the window is not where to start if you have never looked at what the core menu costs. That is its own question, andthe 401(k) fee review is the page for it.
Who does the work
Nobody manages a window by default
That is the part that gets misunderstood.
A client once asked whether his active employer 401(k) could be managed the way the rest of his accounts were. At the time the answer was no, because there was no way to reach inside the plan. Years later his plan added a brokerage window, and that changed. The account could finally be coordinated with everything else he had.
That is the case for it on a large balance. A balance in the hundreds of thousands in one plan, held in a menu nobody is reviewing next to the rest of the portfolio, is where tax placement, concentration and rebalancing across accounts get missed. The window, where a plan allows an advisor to use it, is the way a single person can see all of it.
BAS Financial is paid on the assets it manages, and the fee is discussed openly before anything is signed. That is a stake in the answer, so the review starts with what the window would cost you, not with what it would pay us.
Before you move anything
Five questions to put to the plan
Written down, the answers take about a week to collect. They decide the rest.
What does the window cost per year and per trade?
Ask for the schedule in writing: any annual account fee, commissions, and the expense ratios inside whatever you would hold.
Does the plan cap how much can go in?
Some plans limit the share of your balance that can sit in the window. The plan document will say.
Where do my future contributions and the match go?
Some plans keep new money and employer money in the core menu and let you move only existing balances. That changes how much the window can actually do.
What happens to the window if I leave or the plan changes recordkeeper?
It goes with the plan balance, which makes it part of the old-account decision. A change of recordkeeper can change what the window offers.
What would I be holding that I do not hold already?
If the answer is more of what the core menu has, the window adds cost and nothing else. If the answer is a specific asset class or a low-cost fund the menu lacks, that is the real case for it.
The rest of the picture for people in this position, including how balances in San Diego plans compare, is inwhat 687 San Diego retirement plans show about who is actually ready.
This is educational content, not individualized investment, tax or legal advice. Plan features and costs vary by plan and recordkeeper.
Questions people ask about the brokerage window
Do I really need a self-directed brokerage account in my 401(k)?
Not always. It earns its place when the core menu is missing something you have a deliberate reason to hold, or when you want someone to manage the 401(k) alongside the rest of your accounts. It is usually not worth it if you would use it to trade, to pay avoidable fees, or to add to a concentration you already carry.
What is the difference between a brokerage window and the plan's regular funds?
The core menu is a short list the plan's fiduciary chose and monitors. The window is a door off that menu into a brokerage account inside the same plan, which usually opens a wider list of funds, ETFs and individual stocks. Which securities are available depends on the plan and the recordkeeper.
Does using the window take my money out of the plan?
No. The balance stays in the 401(k) and follows the plan's rules. That is the main difference from a rollover to an IRA, which leaves the plan, and which can close off plan-only tax treatment such as net unrealized appreciation on company stock.
Can I hold bonds or CDs through the window?
Sometimes. The brokerage menu behind the window varies by recordkeeper, and the plan can fence off categories. Ask the recordkeeper for the list of what is permitted before you assume.
Can an advisor manage the money in my brokerage window?
In some plans, yes. The window can be what makes it possible for an outside advisor to manage the 401(k) in coordination with your other accounts. Whether your plan allows it depends on the plan and the provider, which is why the question goes to the recordkeeper first.
Does the window change how the money is taxed?
Buying and selling inside a pre-tax 401(k) is not a taxable event the way trading in a taxable account is. The tax consequences come at withdrawal, and whether the money is pre-tax or Roth does not change because it sits in the window. Talk it through with your CPA.
Before you schedule
Related for plan participants
Bring the plan name and the fee schedule.
A review of what the window would change for your account, whether an outside advisor can use it in your plan, and what leaving the account alone would look like. If managing it through the window is how we would work together, the fee is discussed openly in that review. If staying put is right, you will hear that.
Schedule my reviewA 30-minute call. No document gathering beforehand, and no obligation afterwards.
Sources for the figures on this page
Limits are for the 2026 plan year. The IRS normally publishes the next year's limits in the fall, and this page is updated when it does.
2026 contribution limits
- IRS, “401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500,” IR-2025-111, November 13, 2025.
- IRS, Notice 2025-67: the catch-up limit is $8,000 at age 50 and over, and remains $11,250 for individuals who attain age 60, 61, 62 or 63 in 2026.
Plan fees and disclosure
- U.S. Department of Labor, A Look at 401(k) Plan Fees: plan fiduciaries are to “disclose plan, investment, and fee information to participants,” and “individual service fees are charged separately to the accounts of participants who choose to take advantage of a particular plan feature.”