What a tax-advantaged retirement account does

A retirement savings account with tax benefits is a bank or investment account where the money you put in, the money it earns, or the money you take out later gets special treatment from the IRS. The tax break depends on which type of account you choose. Some accounts let you deduct contributions from your income taxes right now. Others let your money grow without being taxed on the gains, and you pay taxes only when you withdraw it in retirement. A few let you withdraw money tax-free if you follow the rules.

The catch is that these accounts come with restrictions. You generally cannot touch the money before age 59½ without paying a penalty, and you must start taking money out at a certain age. The IRS sets contribution limits each year — the amount you are allowed to put in — and those limits change. The main reason to use one is that the tax savings can add up to thousands of dollars over decades.

Key Takeaways

  • Tax-advantaged retirement accounts reduce what you owe the IRS either when you contribute money now or when you withdraw it later, depending on the account type.
  • The most common types are Traditional IRAs, Roth IRAs, 401(k)s through an employer, and SEP IRAs for self-employed people, each with different tax rules and contribution limits.
  • Withdrawing money before age 59½ usually triggers a 10 percent penalty plus income taxes, with narrow exceptions for hardship or first-time home purchase.
  • Contribution limits vary by account type and change each year, so you need to check the current year's limit before you deposit money.
  • You can have multiple retirement accounts at the same time, but your total contributions across all IRAs cannot exceed the annual limit.

The main types and how their tax breaks differ

Traditional IRA contributions may be tax-deductible in the year you make them, which lowers your taxable income. You pay income tax on the money when you withdraw it in retirement. This works well if you expect to be in a lower tax bracket after you stop working.

Roth IRA contributions are not tax-deductible now, but the money grows tax-free and you withdraw it tax-free in retirement. This works well if you expect to be in a higher tax bracket later, or if you want to leave tax-assistance programs to heirs. Roth accounts also let you withdraw your contributions (not the earnings) at any time without penalty, which gives you more flexibility.

401(k) plans are offered by employers. You contribute pre-tax money through payroll deduction, which lowers your taxable income immediately. Many employers match a portion of what you contribute — assistance programs. You pay tax on withdrawals in retirement. Some employers also offer a Roth 401(k) option, which works like a Roth IRA but with higher contribution limits.

SEP IRA (Simplified Employee Pension) is for self-employed people and small business owners. Contributions are tax-deductible, and you can contribute a much larger amount than you can to a regular IRA. You pay tax on withdrawals later.

Contribution limits and how they change

The IRS sets a maximum amount you can contribute to retirement accounts each year. For 2024, the limit for Traditional and Roth IRAs is $7,000 if you are under 50, and $8,000 if you are 50 or older (the extra $1,000 is called a catch-up contribution). These limits change most years, usually increasing slightly for inflation.

401(k) limits are much higher — $23,500 for 2024 if you are under 50, and $31,000 if you are 50 or older. SEP IRA limits are based on your business income and can be substantially higher. If you contribute more than the limit, the IRS charges a penalty tax on the excess.

If you have both a Traditional IRA and a Roth IRA, your contributions to both count toward the same annual limit. You cannot put $7,000 in each; your total across both must not exceed $7,000. However, a 401(k) has its own separate limit, so you can max out a 401(k) and also contribute to an IRA in the same year.

Early withdrawal penalties and the exceptions

If you withdraw money from a Traditional IRA or 401(k) before age 59½, you owe income tax on the amount plus a 10 percent penalty. For a Roth IRA, you can withdraw your contributions anytime without penalty, but earnings withdrawn early are subject to tax and penalty unless an exception applies.

The IRS allows penalty-free early withdrawals in narrow situations: a permanent disability, medical expenses that exceed 7.5 percent of your adjusted gross income, health insurance premiums paid while you are unemployed, a first-time home purchase (up to $10,000 lifetime), and substantially equal periodic payments under a specific formula. Some 401(k) plans also allow loans against your balance, which you repay with interest — this is not a withdrawal and does not trigger a penalty.

Roth IRAs have one major advantage here: you can withdraw your contributions (the money you put in) at any time for any reason without tax or penalty. Only the earnings are restricted. This makes a Roth useful as an emergency fund that also grows tax-free.

Required minimum distributions and when you must start withdrawing

Once you reach age 73 (as of 2023; this age increases over time), the IRS requires you to withdraw a minimum amount from Traditional IRAs and 401(k)s each year. This is called a required minimum distribution or RMD. The amount is calculated based on your account balance and your life expectancy. If you do not take the RMD, you owe a penalty of 25 percent of the amount you should have withdrawn (this penalty was reduced from 50 percent in 2023).

Roth IRAs do not require withdrawals during your lifetime, which is another reason some people prefer them. Your heirs will have to withdraw the money after you die, but you do not have to touch it while you are alive.

If you are still working and do not own more than 5 percent of the company, some 401(k) plans allow you to delay RMDs until you actually retire. Check with your plan administrator about this rule.

Income limits for Roth contributions and deductions

Not everyone can contribute to a Roth IRA. The IRS phases out your ability to contribute once your income reaches a certain level. For 2024, if you file as single, the phase-out begins at $146,000 and you cannot contribute at all above $161,000. If you are married filing jointly, it begins at $230,000 and ends at $240,000. These limits change each year.

Traditional IRA deductions are also limited if you or your spouse are covered by a workplace retirement plan and your income is above a threshold. If you have a 401(k) at work and earn over $77,000 (single) or $123,000 (married filing jointly) in 2024, you cannot deduct the full amount of a Traditional IRA contribution. You can still contribute, but the money goes in after-tax.

If your income is too high for a Roth contribution, you have options: contribute to a Traditional IRA instead, use a "backdoor Roth" strategy (contribute to a Traditional IRA and then convert it to a Roth), or contribute to a 401(k) if your employer offers one, since 401(k)s have no income limits.

How to open an account and where to hold it

You can open a Traditional or Roth IRA at a bank, credit union, brokerage firm, or investment company. Each institution has different fees, investment options, and minimum balances. A bank IRA is typically a savings account or CD with a fixed interest rate. A brokerage IRA lets you invest in stocks, bonds, mutual funds, and exchange-traded funds (ETFs). Choose based on how hands-on you want to be and what returns you are comfortable with.

401(k)s are set up by your employer, not by you. Your HR or benefits department will give you enrollment materials and a list of investment options available in your plan. You choose how much to contribute and where to invest the money within the plan's offerings. If your employer offers a match, make sure you contribute enough to get the full match — that is immediate assistance programs.

Once you open an account, you fund it by transferring money from a checking or savings account, or by having your employer deduct contributions from your paycheck (for 401(k)s). You can also roll over money from one retirement account to another — for example, moving a 401(k) to an IRA when you change jobs — without triggering taxes if you do it correctly.

Frequently Asked Questions

Can I have both a Traditional IRA and a Roth IRA at the same time?

Yes, but your total contributions to both accounts in a single year cannot exceed the annual limit. If you put $4,000 in a Traditional IRA, you can only put $3,000 in a Roth that year (assuming the $7,000 limit). You can split the money however you want between the two, as long as the total does not go over.

What happens to my retirement account if I change jobs?

Your 401(k) stays in that account unless you move it. You can leave it there, roll it into your new employer's 401(k) if they accept rollovers, or roll it into a Traditional IRA. A rollover is a direct transfer from one account to another and does not trigger taxes or penalties. Do not take a check and deposit it yourself — that counts as a withdrawal and you will owe taxes and penalties unless you complete the rollover within 60 days.

Do I have to invest my IRA money, or can I just keep it in a savings account?

It depends on where you open the account. A bank IRA can be a regular savings account earning interest. A brokerage IRA requires you to choose investments. You can pick conservative options like money market funds or bond funds if you do not want to invest in stocks. The tax benefits work the same way regardless of what you invest in.

What is a backdoor Roth, and should I do one?

A backdoor Roth is a strategy where you contribute money to a Traditional IRA (which has no income limit) and then convert it to a Roth IRA. This works if your income is too high to contribute to a Roth directly. It is legal, but it is complicated and has tax consequences if you have other Traditional IRA balances. Talk to a tax professional before attempting one.

Can I withdraw money from my retirement account to pay off debt or make a large purchase?

You can, but it usually costs you. A withdrawal before 59½ triggers a 10 percent penalty plus income taxes on the amount. The exception is a Roth IRA, where you can withdraw your contributions anytime without penalty. For a 401(k), some plans allow loans against your balance, which you repay with interest — this avoids the penalty but you have to repay it or owe taxes when you leave the job.