If you're building wealth through the stock market, one of the biggest questions isn't what stocks to buy, it's where you should own them. 

Should you invest through a Roth IRA, where qualified withdrawals can be tax-free? Or should you use a taxable brokerage account, which offers greater flexibility but comes with annual tax implications? 

The answer depends on your financial goals, investment timeline, tax situation, and retirement strategy. 

There's also a third option that many investors overlook: a Roth Self-Directed IRA (Roth SDIRA), which provides the same Roth IRA tax advantages while allowing investments beyond publicly traded stocks. 

This guide compares all three account types so you can choose the one that best fits your long-term financial plan. 

Roth IRA vs. Brokerage Account: What's the Difference? 

At first glance, both accounts allow you to buy stocks, ETFs, mutual funds, and other securities. The major difference is how they're taxed. 

A Roth IRA is designed specifically for retirement. You contribute after-tax dollars, and if IRS requirements are met, qualified withdrawals, including investment gains, are completely tax-free¹. 

A brokerage account has no retirement restrictions. You can invest, withdraw, or trade whenever you'd like, but dividends, interest, and realized capital gains may be taxable. 

Here's a quick comparison. 

What Is a Roth IRA? 

A Roth IRA is an individual retirement account funded with money you've already paid taxes on. In exchange, the IRS offers one of the most valuable retirement benefits available: 

Qualified withdrawals are completely tax-free¹. 

That means: 

• Your investments grow tax-free.  

• You don't pay taxes on future gains.  

• Qualified retirement withdrawals are tax-free.  

• There are no Required Minimum Distributions (RMDs) during your lifetime.  

Because decades of investment growth can occur without future taxes, many investors use a Roth IRA for assets they expect to appreciate significantly over time. 

What Is a Brokerage Account? 

A brokerage account is a standard investment account without retirement restrictions. 

It offers maximum flexibility: 

• Invest as much as you want.  

• Withdraw anytime.  

• No income limits.  

• No contribution limits.  

• No age restrictions for accessing your money.  

However, this flexibility comes with ongoing taxes. Depending on your investments, you may owe taxes on: 

• Dividends  

• Interest income  

• Short-term capital gains  

• Long-term capital gains when you sell appreciated investments  

Unlike a Roth IRA, taxes don't wait until retirement, they may occur throughout your investing journey. 

Tax Comparison: Roth IRA vs. Brokerage Account 

Here's how taxes generally compare. 

This distinction is important because many investors focus primarily on capital gains taxes when comparing a Roth IRA with a brokerage account. However, in a taxable brokerage account, taxes may apply throughout the life of the investment, not just when you sell. Depending on the investments you own, dividends, interest income, capital gains distributions from mutual funds, and realized gains from selling or rebalancing your portfolio may all create taxable events. 

Each tax payment reduces the amount of money that remains invested, leaving less capital available to benefit from long-term compounding. Over time, this "tax drag" can meaningfully reduce your portfolio's growth. 

By contrast, a Roth IRA allows your investments to grow free from annual taxes on dividends, interest, and capital gains as long as the assets remain in the account. If you meet the IRS requirements for qualified distributions, withdrawals in retirement are also completely tax-free. 

Over an investment horizon of 20, 30, or even 40 years, avoiding ongoing taxes can significantly increase the amount of wealth your portfolio is able to accumulate through the power of compounding. 

How much tax does a Roth IRA save? 

To better understand the potential tax savings, let's compare two investors with identical saving and investing habits. Both begin investing at age 35, contribute $7,000 per year for 30 years, and earn an average annual return of 10%. The only meaningful difference is where they invest: one uses a Roth IRA, while the other invests through a taxable brokerage account.  

• Starting age: 35 

• Annual contribution: $7,000 (current annual contribution limit) 

• Investment period: 30 years 

• Average annual return: 10% (approximately the long-term historical average annual return of the S&P 500 before inflation) 

• Retirement age: 65 

• Long-term capital gains tax rate: 15% (representative federal rate for many middle-income investors; state taxes are excluded for simplicity)  

In this example, we assume one of the investors sells the entire brokerage portfolio at retirement and pays the 15% federal long-term capital gains tax rate on all investment gains. However, the amount you owe depends on your taxable income. Some investors may pay up to 20%, and some may also owe the 3.8% Net Investment Income Tax (NIIT). State taxes may also apply. 

Perhaps even more important, this example doesn't fully capture the ongoing tax impact of a brokerage account. Unlike a Roth IRA, where investments can grow without annual taxes, taxable brokerage accounts may generate taxes along the way through dividends, mutual fund capital gains distributions, and the sale or rebalancing of investments. Every dollar paid in taxes is a dollar that can no longer remain invested and compound over time. This gradual reduction in growth, often called tax drag, can have a meaningful impact on your portfolio over decades, making tax-efficient investing an important consideration when planning for retirement. 

Which Account Is Better for Long-Term Stock Investing? 

For investors saving specifically for retirement, a Roth IRA often offers a significant long-term tax advantage. Imagine investing for 30 years. 

If your portfolio grows substantially, all of that appreciation could potentially be withdrawn tax-free from a qualified Roth IRA. 

In a brokerage account, however, selling appreciated investments may trigger capital gains taxes. That tax difference can compound over decades. 

When a Brokerage Account Makes More Sense 

A brokerage account can be the better option if you: 

• Need access to your money before retirement.  

• Have already maxed out retirement account contributions.  

• Want unlimited investing.  

• Have income that prevents direct Roth IRA contributions.  

• Are investing for medium-term goals like purchasing a home or starting a business.  

Many investors actually use both accounts together. 

A Third Option: Roth Self-Directed IRA (Roth SDIRA) 

While Roth IRAs offer significant tax advantages over taxable brokerage accounts, many traditional Roth IRAs limit investors to conventional assets such as stocks, bonds, mutual funds, and ETFs. A Roth Self-Directed IRA (Roth SDIRA) provides the same tax benefits as a traditional Roth IRA while expanding the investment universe  

For investors seeking greater diversification and control over their retirement savings, a Roth SDIRA offers significantly more flexibility without sacrificing the tax-free growth and qualified withdrawals that make Roth IRAs so attractive. 

Depending on the custodian and IRS rules, a Roth SDIRA may allow investments in: 

• Real estate  

• Cryptocurrency 

• Private equity  

• Precious metals  

• Private lending  

• Certain startup investments  

• Other alternative assets permitted under IRS regulations

This gives investors the opportunity to build a more diversified retirement portfolio beyond traditional Wall Street investments. 

It's important to understand that Self-Directed IRAs are administered by specialized custodians, and certain investments and transactions are prohibited under IRS rules. Due diligence is essential before investing in alternative assets. 

Tax Comparison: Brokerage Account vs. Roth SDIRA 

A Roth IRA already offers one of the most valuable tax benefits available for retirement investing: tax-free qualified withdrawals. A Roth Self-Directed IRA builds on those same benefits by allowing investors to access a broader universe of eligible investments beyond the traditional stock market. For investors seeking greater diversification, this flexibility can help create a retirement portfolio aligned with their long-term goals. 

Should You Use Both a Roth IRA and a Brokerage Account? 

Many financial planners recommend using both. 

For example: First, contribute enough to retirement accounts to take advantage of tax benefits. 

Then, invest additional savings in a brokerage account once retirement contribution limits have been reached. This approach balances: 

• Tax-efficient retirement savings  

• Liquidity for near-term goals  

• Long-term wealth building  

• Investment flexibility  

Each account serves a different purpose within a comprehensive financial plan. 

Final Thoughts Comparing Roth IRAs and brokerage accounts

Choosing between a Roth IRA vs. brokerage account isn't about finding one account that's always better, it's about selecting the right tool for your financial goals. 

If your focus is long-term retirement savings, a Roth IRA's tax-free qualified growth can make it an attractive option. If you need flexibility and unrestricted access to your investments, a brokerage account may be the better fit. 

For investors looking to go beyond traditional stocks, a Roth Self-Directed IRA offers another path by combining the tax advantages of a Roth IRA with access to a broader range of eligible investments, including certain alternative assets. 

Many investors ultimately use all three account types as part of a diversified wealth-building strategy. 

Frequently Asked Questions When Comparing Roth IRAs and Brokerage Accounts

Disclosures

1. Some taxes may apply. We recommend you consult your tax, legal or investment advisor.