How to Start a Roth IRA (Step-by-Step for Beginners)

A Roth IRA is one of the most powerful retirement tools available — and anyone with earned income can open one. Here's exactly how to get started, what to invest in, and why starting early makes all the difference.

What Is a Roth IRA?

A Roth IRA (Individual Retirement Account) is a tax-advantaged investment account that lets your money grow tax-free. You contribute after-tax dollars, and when you withdraw the money in retirement, you pay zero taxes — not on your contributions, not on the growth, and not on the decades of compounding in between.

That tax-free growth is powerful. If you invest $6,000/year starting at age 25 and earn an average 8% annual return, you could have over $1.5 million by age 65 — all of it tax-free at withdrawal.

Who Qualifies for a Roth IRA?

To contribute to a Roth IRA, you need earned income — wages, salary, self-employment income, or freelance income. Passive income (dividends, rental income) does not count.

Income limits for 2024:

Single filers: Full contribution allowed up to $146,000 MAGI; phase-out between $146,000–$161,000; no contribution above $161,000
Married filing jointly: Full contribution up to $230,000; phase-out between $230,000–$240,000; no contribution above $240,000

If your income is above the limit, a "backdoor Roth IRA" strategy may still allow you to contribute — but that's an advanced topic worth discussing with a tax professional.

Contribution Limits for 2024

For 2024, the Roth IRA contribution limit is $7,000 per year ($8,000 if you're 50 or older). This is the combined limit across all IRA accounts — so if you have both a Roth IRA and a Traditional IRA, the total contributions to both cannot exceed $7,000.

You can contribute for a given tax year until the tax filing deadline — typically April 15 of the following year. So you can make 2024 contributions until April 15, 2025.

Where to Open a Roth IRA

Opening a Roth IRA takes about 15 minutes at any of these reputable, low-cost brokerages:

Fidelity: No minimums, excellent index funds, strong customer service, and one of the best platforms for beginners.

Vanguard: The pioneer of low-cost index investing. Their own funds (like VTSAX) have expense ratios as low as 0.04%.

Schwab: Similar to Fidelity — no minimums, wide fund selection, good mobile app.

M1 Finance: Ideal if you want to automate investments and use a "pie" allocation model.

Avoid high-fee banks and insurance companies that push expensive actively managed funds or annuities inside a Roth IRA wrapper. The brokerage you choose largely determines the investment options and costs you'll deal with long-term.

What to Invest in Inside Your Roth IRA

Opening the account is step one. Funding it is step two. But step three — choosing what to actually invest in — is where many beginners freeze.

For most people, the answer is simple: low-cost, diversified index funds.

Total Market Index Fund (e.g., Fidelity ZERO Total Market Index, Vanguard VTSAX, Schwab SWTSX): Gives you exposure to thousands of U.S. companies in one fund. Expense ratios as low as 0%.

S&P 500 Index Fund (e.g., Fidelity FXAIX, Vanguard VOO): Tracks the 500 largest U.S. companies. Historically returns ~10% annually over long periods.

Target Date Fund (e.g., Fidelity Freedom Index 2055, Vanguard Target Retirement 2055): If you want zero ongoing decisions, a target-date fund automatically adjusts your allocation from stocks to bonds as you approach retirement.

A simple portfolio — even just a single total market index fund — outperforms the majority of actively managed funds over 20+ year periods, primarily because of lower fees.

Roth IRA vs. Traditional IRA: Which Is Better?

Both are powerful, but the tax treatment is different:

	Roth IRA	Traditional IRA
Tax on contributions	After-tax (no deduction)	Pre-tax (tax deduction now)
Tax on withdrawals	Tax-free	Taxed as income
Best for	Young/lower income now, higher income later	Higher income now, lower income in retirement
Required distributions	None during your lifetime	Required at age 73 (RMDs)

General guidance: If you're early in your career and in a lower tax bracket now than you expect to be in retirement, the Roth IRA is almost always the better choice. You pay taxes at today's lower rate and enjoy decades of tax-free growth.

If you're in your peak earning years and a high tax bracket, a Traditional IRA or Traditional 401(k) may offer more immediate tax relief.

Why Starting Early Matters More Than the Amount

The math of compound growth is ruthless — in the best possible way — for those who start early.

Two investors both invest $6,000/year. Investor A starts at 25 and stops at 35 (10 years, $60,000 total). Investor B starts at 35 and continues to age 65 (30 years, $180,000 total). Assuming 8% average returns:

Investor A ends up with approximately $602,000
Investor B ends up with approximately $734,000

Investor B contributed three times as much — and only ended up with 22% more. That's the cost of starting 10 years late.

Starting early is worth more than investing more, which is why the best time to open a Roth IRA is right now.

How to Open Your Roth IRA in 5 Steps

Choose your brokerage (Fidelity, Vanguard, or Schwab are all excellent for beginners)
Open the account — select "Roth IRA" during account setup, provide your Social Security number and basic information
Fund the account — link your bank account and transfer your initial contribution
Choose your investments — for most people, a total market index fund or target-date fund is the right starting point
Set up automatic contributions — even $100/month builds the habit and the account

The whole process takes about 20 minutes. The compounding that follows can last decades.