Traditional 401(k) vs Taxable Brokerage: Where to Invest

The match changes everything — fund it first

Before you weigh tax brackets or capital-gains rates, settle the one question that swamps all the others: are you getting your full employer match? A typical formula matches 50% of your contributions up to 6% of pay. On an $85,000 salary, contributing 6% ($5,100) earns a $2,550 match — a guaranteed 50% return the moment it lands. No taxable brokerage, no index fund, no anything beats that.

So the order is simple. Fund the 401(k) at least up to the full match before you put a dollar in a brokerage. Skipping the match to chase capital-gains rates is like turning down a raise to save on taxes — you come out behind no matter how the rest of the math shakes out. Only after the match is secured does the 401(k)-vs-brokerage question become genuinely interesting.

Pre-tax deduction now vs capital-gains rates later

A traditional 401(k) and a taxable brokerage are taxed at opposite ends. The 401(k) gives you a deduction today — a $24,500 contribution in the 24% bracket saves roughly $5,880 on this year's tax bill — but every dollar you withdraw in retirement is taxed as ordinary income, up to 37%.

A brokerage flips that. You invest after-tax dollars, but qualified dividends and investments held over a year are taxed at long-term capital-gains rates: 0%, 15%, or 20%. In 2026 a single filer pays 0% on long-term gains up to $49,450 of taxable income and 15% up to $545,500; couples filing jointly hit 15% above $98,900. A high earner whose 401(k) withdrawals would land in the 32–37% ordinary brackets may pay only 15–20% on the same gains in a brokerage. The catch: the brokerage leaks a little tax every year on dividends and any gains you realize, while the 401(k) compounds untouched until you withdraw.

2026 limits, liquidity, and the menu problem

The 2026 numbers favor the 401(k) on capacity. The employee deferral limit is $24,500, with an $8,000 catch-up at 50+ (and a larger $11,250 catch-up for ages 60–63). A taxable brokerage has no contribution limit at all — it's where the money goes once you've filled every tax-advantaged bucket.

Two non-tax factors often decide it:

• Liquidity. 401(k) money is locked until 59½ outside narrow exceptions; pull it early and you owe income tax plus a 10% penalty. A brokerage is fully liquid — sell any day, for any reason, and only the gain is taxed.
• Investment menu. Your 401(k) holds whatever funds your plan offers, and some menus are thin or carry high expense ratios. A brokerage lets you buy any ETF, stock, or low-cost index fund you want. If your plan's options are weak, that's a real point for funding a brokerage beyond the match.

A real example: $24,500 maxed, then $10,000 more

Picture a 35-year-old earning $120,000 who maxes the 401(k) at $24,500 (including a $4,800 match) and has another $10,000 a year to invest. The 401(k) is full, so the $10,000 goes into a taxable brokerage.

At a 7% average return over 25 years, that $10,000 annual brokerage contribution grows to roughly $680,000. Because it's a brokerage, the long-term gains are taxed at 15% on sale rather than as ordinary income — and if it's left to heirs, the step-up in basis can erase the embedded gain entirely. Meanwhile the maxed 401(k) compounds with zero annual tax drag. The lesson holds: max the tax-advantaged 401(k) first, then let a brokerage carry everything beyond the limit. Plug your own salary, match, and timeline into the calculators below.

Should I max my 401(k) before opening a taxable brokerage?

Yes, in almost every case. Capture the full employer match first, then max the 401(k) to its $24,500 (2026) limit before funding a brokerage. The 401(k) gives you a tax deduction now and tax-free compounding; a brokerage is the right home for money beyond the limit or for goals before age 59½.

Are 401(k) withdrawals taxed more than brokerage gains?

Often, yes. Traditional 401(k) withdrawals are taxed as ordinary income, up to 37%. A brokerage held over a year is taxed at long-term capital-gains rates of 0%, 15%, or 20%. A high earner may pay 15% on brokerage gains versus 32–37% on 401(k) withdrawals — but the 401(k)'s upfront deduction and tax-free growth usually offset that.

What is the 2026 401(k) contribution limit?

For 2026 the employee deferral limit is $24,500, plus an $8,000 catch-up at age 50+ (total $32,500) and a larger $11,250 catch-up for ages 60–63. Employer match dollars sit on top of that limit. A taxable brokerage has no contribution cap at all.

Can I access brokerage money before retirement without a penalty?

Yes. A taxable brokerage has no age restrictions — you can sell and withdraw anytime, and only the gain is taxed. A traditional 401(k) generally charges a 10% penalty plus income tax on withdrawals before 59½, which is why brokerages suit pre-retirement goals like a home down payment or early retirement.

Does a brokerage get taxed every year?

Partly. A brokerage owes tax each year on dividends and on any gains you realize by selling, which creates a small annual drag a 401(k) avoids. But if you buy and hold low-turnover index funds, that drag is modest, and the long-term capital-gains rate plus the step-up in basis at death can make a brokerage very tax-efficient.

What is the step-up in basis and why does it favor a brokerage?

When you die, a taxable brokerage's cost basis resets to its market value, so heirs can sell with little or no capital-gains tax on decades of growth. A traditional 401(k) gets no step-up — heirs owe ordinary income tax on every dollar they withdraw. For legacy planning, that makes a brokerage surprisingly tax-friendly.