401(k) vs. IRA: Where to Put Your First Retirement Dollars

1. Two Containers, Not Two Investments

"Should I invest in a 401(k) or an IRA?" sounds like a simple question. It is slightly the wrong one, and clearing that up makes everything else easier.

A 401(k) and an IRA are not investments. They are containers: account types with special tax rules. Inside each container, you choose actual investments, such as index funds, target-date funds or bonds. You can have a great container holding a poor investment, or a plain container holding a sensible one.

So there are really two decisions:

1. Which container gets your money, and in what order.
2. What you invest in inside each container.

This article covers the first decision. For the second, start with what index funds are, and if the vocabulary feels like a wall, our investing jargon guide explains the terms in plain words.

One more thing before we start. Retirement accounts come with real tax rules and limits that change most years. The figures below are for 2026. Examples use US figures. Tax and account rules differ by state and country.

2. The 401(k): Your Employer's Plan and the Match

A 401(k) is a retirement plan offered through your job. You choose a percentage of each paycheck, and it goes into the account automatically before you ever see it. That automation is one of its biggest strengths.

The 2026 limit. You can contribute up to $24,500 of your own pay in 2026. If you are 50 or older, you can add a catch-up contribution of up to $8,000, and people aged 60 to 63 have a higher catch-up limit of $11,250.

The match. Some employers add money when you contribute. A common example of a formula is "50% of what you contribute, up to 6% of your pay." In that example, if you put in 6%, your employer adds 3%. If you put in 2%, they add only 1%. The details vary by plan, so check yours.

Vesting. Employer match money sometimes "vests" over time, which means it becomes fully yours only after you have worked there for a set period. Your own contributions are always yours.

The trade-offs. Your investment choices are limited to the plan's menu, and some plans have higher fees than others. Look for the expense ratio of each fund. Lower fees leave more of your money working for you.

3. The IRA: The Account You Open Yourself

An IRA (individual retirement account) has nothing to do with your employer. You open it yourself at a bank or brokerage, and you decide how much to put in and when.

The 2026 limit. You can contribute up to $7,500 in 2026, plus a catch-up of $1,100 if you are 50 or older. You need earned income, such as wages or self-employment income, to contribute.

More choice. Most brokerage IRAs let you buy almost any fund or ETF. That freedom is useful if your 401(k) menu is thin or expensive. It also means the investment decisions are fully yours. If that feels like a lot, our guide to ETFs vs. mutual funds is a good next read.

A forgiving deadline. You can usually make IRA contributions for a given year up until the tax-filing deadline the following spring. If you missed a year's contribution in December, you may still have a few months.

Two flavors. IRAs come as traditional or Roth. The difference is about when you pay tax, which is the next chapter.

4. Traditional or Roth: Pay Tax Now or Later

Both 401(k)s and IRAs can come in two tax versions. Many 401(k) plans now offer a Roth option too.

Traditional. Contributions may lower your taxable income this year. The money grows without yearly tax, and you pay income tax when you withdraw it in retirement.

Roth. You contribute money you have already paid tax on. The money grows, and qualified withdrawals in retirement are tax-free.

The plain way to think about it: do you expect your tax rate to be higher now or later? If you expect to be in a higher bracket in retirement, Roth tends to look better. If you are in your peak earning years now and expect a lower bracket later, traditional tends to look better.

Nobody knows future tax rates, including professionals. That is why many people split their savings between the two, so they have some flexibility later.

Roth IRA income limits. In 2026, the ability to contribute to a Roth IRA phases out between $153,000 and $168,000 of income for single and head-of-household filers and between $242,000 and $252,000 for married couples filing jointly.

5. The Order Many People Use to Fill Them

There is no single right order for everyone. But there is a sequence that financial educators often teach because it puts the most valuable steps first. Treat it as a starting framework, not a rule for your situation.

1. A starter cushion and a plan for high-interest debt. Investing while carrying credit card debt at 20% or more is like filling a bucket with a hole in it. See emergency fund vs. investing and debt snowball vs. avalanche.
2. 401(k) up to the full match. If your employer matches, contributing enough to get the full match is usually the highest-return step available.
3. An IRA. Often a Roth IRA if you are eligible, for the wider investment choice and tax-free growth.
4. Back to the 401(k). Raise your contribution toward the annual limit.
5. A regular brokerage account. For goals beyond retirement, or once the tax-advantaged room is used.

Starting late doesn't change the order. It changes the urgency. If you are behind, catching up on retirement covers the levers that matter most at 40 or 50. And the cost of waiting is real: our compound interest guide shows why small early contributions do so much work.

6. Your Next Step This Week

You don't need to settle every question to make progress. Do one of these this week:

• If you have a 401(k): Log in to your benefits portal and find two numbers: your current contribution percentage and your employer's match formula. If you are contributing less than the full match, consider raising your contribution by 1 percentage point. Many plans let you change it in minutes.
• If you don't have a 401(k): Compare two or three low-cost brokerages and open an IRA. Opening the account is the step people put off longest.
• Either way: Run your numbers through the compound interest calculator to see what your current rate adds up to over 20 or 30 years.

If you're not sure whether investing is your main challenge right now or whether debt or your cushion comes first, the free 4-Minute Check will show you where you stand and one next step.

Education, not individualized financial advice. Tax and account rules differ by state and country.