No, a 401(k) is not an IRA account

A 401(k) and an IRA are separate retirement accounts with different rules, different sources of money, and different limits on how much you can put in each year. You can have both at the same time. A 401(k) is an employer-sponsored plan—your employer sets it up, often matches your contributions, and handles the administration. An IRA is an individual account you open on your own, usually through a bank or brokerage firm. The money in each account grows tax-deferred, but the way you contribute, the contribution limits, and the withdrawal rules are not the same.

The confusion is understandable because both accounts hold retirement savings and both offer tax advantages. But they work differently enough that you need to understand which one you have, what you can put into it, and what happens when you leave a job or reach retirement age.

Key Takeaways

  • A 401(k) comes from your employer and is funded by payroll deductions; an IRA is an individual account you open yourself and fund directly.
  • 401(k) contribution limits are much higher than IRA limits—in 2024, you can put up to $23,500 in a 401(k) versus $7,000 in an IRA.
  • Employers often match 401(k) contributions up to a certain percentage, which is information programs you do not get with an IRA.
  • You can have both a 401(k) and an IRA at the same time, but there are income limits on whether you can deduct IRA contributions if you also have a 401(k).
  • When you leave a job, you can roll your 401(k) into an IRA, but the reverse is not possible—you cannot move IRA money into a 401(k).

How a 401(k) gets funded versus an IRA

Your employer deducts 401(k) contributions directly from your paycheck before taxes are calculated. You decide what percentage of your salary goes in—typically 1 to 50 percent—and the money moves automatically. Your employer then often adds matching contributions: a common match is 50 cents for every dollar you contribute, up to 6 percent of your salary. That match is part of your total compensation and does not come out of your pocket.

An IRA works differently. You fund it yourself, either with a lump sum or by setting up regular transfers from your bank account. The money comes from your own savings, not from your paycheck. No employer is involved, and no employer match is available. You decide when and how much to contribute, up to the annual limit.

This difference matters because the employer match in a 401(k) is essentially free retirement savings. If your employer matches 50 cents on the dollar up to 6 percent of your salary, and you earn $50,000 a year, you can get up to $1,500 in free matching contributions just by putting in $3,000 of your own money. An IRA does not offer this.

Contribution limits are not the same

The IRS sets annual limits on how much you can put into each type of account, and they are different. For 2024, you can contribute up to $23,500 to a 401(k) if you are under age 50, or $30,500 if you are 50 or older (the extra $7,000 is called a catch-up contribution). For an IRA, the limit is $7,000 if you are under 50, or $8,000 if you are 50 or older.

The 401(k) limit is much higher because it is designed to be your primary retirement savings vehicle if your employer offers one. The IRA limit is lower because IRAs are meant to supplement other retirement savings or serve as the main account for self-employed people and those without access to a workplace plan.

If you have both a 401(k) and an IRA, you can contribute to both in the same year, but each account has its own separate limit. Putting $10,000 in your 401(k) does not reduce how much you can put in an IRA—you can still contribute up to $7,000 to the IRA.

Tax treatment differs between the two accounts

Both 401(k)s and IRAs offer tax-deferred growth, meaning the money inside grows without being taxed each year. But the way you get the tax break is different.

With a 401(k), your contributions reduce your taxable income for the year you make them. If you earn $60,000 and contribute $10,000 to your 401(k), you only report $50,000 as income on your tax return. You pay no income tax on that $10,000 until you withdraw it in retirement.

With a traditional IRA, contributions may or may not be tax-deductible depending on your income and whether you have access to a 401(k) at work. If you have a 401(k) and your income is above a certain threshold, you cannot deduct your IRA contributions. The IRS phases out the deduction starting at $77,000 of income for single filers in 2024 (the range is higher for married couples). If you do not have a 401(k) at work, you can always deduct your traditional IRA contributions regardless of income.

A Roth IRA works differently still: contributions are not deductible, but withdrawals in retirement are tax-free if you follow the rules. There is no Roth 401(k) option at most employers, though some larger companies do offer one.

Withdrawal rules and penalties are stricter for 401(k)s

Both accounts penalize you for withdrawing money before age 59½, but the rules differ in important ways. With a 401(k), you generally cannot withdraw money before 59½ without paying a 10 percent early withdrawal penalty plus income tax on the amount withdrawn. Some 401(k)s allow loans against your balance, which lets you borrow from yourself and repay with interest, but this is not may provide.

IRAs are more flexible. You can withdraw contributions (not earnings) from a Roth IRA at any time without penalty. With a traditional IRA, you can withdraw money early without the 10 percent penalty if you meet certain exceptions—for example, if you use up to $10,000 for a first home purchase, or if you have significant medical expenses. IRAs also allow something called a substantially equal periodic payment (SEPP), which lets you take regular withdrawals before 59½ without penalty, as long as you follow a specific formula.

At age 73, the rules flip. With a 401(k), you must start taking required minimum distributions (RMDs)—the IRS forces you to withdraw a certain amount each year and pay tax on it. With a traditional IRA, the same RMD rules explore. But if you still work and do not own more than 5 percent of the company, you can delay RMDs from your current employer's 401(k) until you actually retire. This is called the still-working exception.

What happens to your 401(k) when you leave your job

When you leave an employer, you have four options for your 401(k): leave it with the old employer (if the balance is above a certain amount, usually $5,000), roll it into your new employer's 401(k) if they accept rollovers, roll it into a traditional IRA, or cash it out. Cashing it out triggers income tax and a 10 percent penalty if you are under 59½, so this is rarely the best choice.

A rollover to an IRA is common and straightforward. You instruct your old 401(k) plan to send the money directly to an IRA you open at a bank or brokerage. This is called a direct rollover and avoids taxes and penalties. The money moves from one retirement account to another without you touching it.

The reverse is not possible: you cannot roll an IRA into a 401(k). Some employers allow you to roll a previous employer's 401(k) into their plan, but they do not accept IRA rollovers. This is one reason people end up with multiple IRAs over time—each time you change jobs and roll over a 401(k), you can consolidate it into one IRA if you want.

When you might choose one account over the other

If your employer offers a 401(k) with a match, you should contribute enough to get the full match before maxing out an IRA. The match is information programs and you should not leave it on the table. After you capture the match, you can decide whether to contribute more to the 401(k) or open an IRA.

An IRA makes sense if you are self-employed, a freelancer, or you work for an employer that does not offer a 401(k). It also makes sense if you want more control over your investments—401(k)s typically offer a limited menu of funds chosen by your employer, while IRAs let you invest in almost anything: individual stocks, bonds, mutual funds, or exchange-traded funds.

If you have a high income and want to save more than the 401(k) limit allows, you might use both. Max out your 401(k) at $23,500, then open an IRA and contribute $7,000 more. That is $30,500 in tax-deferred retirement savings in a single year.

Frequently Asked Questions

Can I have both a 401(k) and an IRA at the same time?

Yes. You can contribute to both in the same year, and each has its own separate contribution limit. However, if you have a 401(k) at work and your income is above a certain threshold, you cannot deduct contributions to a traditional IRA. A Roth IRA has its own income limits, but they are higher than traditional IRA limits.

What happens to my 401(k) if I get fired or laid off?

Your 401(k) is yours to keep. Your employer cannot take it back. You can leave it with the old employer, roll it into a new employer's plan, roll it into an IRA, or cash it out. If you cash it out before age 59½, you will owe income tax plus a 10 percent penalty on the full amount.

Can I move money from an IRA into a 401(k)?

Not directly. Some employers allow you to roll over a previous employer's 401(k) into their current plan, but they do not accept IRA rollovers. If you want to consolidate accounts, you would keep the IRA separate or roll it into an IRA at the same financial institution as your other IRAs.

Which account should I fund first if I have limited money to save?

If your employer offers a 401(k) match, contribute enough to get the full match first—that is information programs. After that, decide based on your situation: if you want more investment choices, fund an IRA. If you want to save more than the IRA limit allows, go back to the 401(k).

Do I have to take money out of my 401(k) and IRA at the same time?

No. Each account has its own required minimum distribution calculation starting at age 73. You can take the full RMD from one account and nothing from another, as long as the total across all your IRAs meets the requirement. 401(k)s are calculated separately and must be withdrawn from the 401(k) itself.