Published 2026-08-09
401(k) vs. IRA: Which One to Fund First, and Why
A 401(k) comes from your employer and takes money straight out of your paycheck. An IRA you open yourself, anywhere. Most people should use both — and the order is decided by one thing: whether your employer matches.
Key takeaways
- 401(k): offered by an employer, funded by payroll deduction, often with an employer match.
- IRA: opened by you at a broker or bank, funded by you, with a much wider choice of investments.
- Fund the 401(k) up to the full employer match first. It is an immediate return on your contribution.
- Contribution limits are set by the IRS and change most years — we publish the current ones with the Notice number they come from.
The short answer
If your employer matches contributions, put in at least enough to get the whole match before doing anything else. Leaving it is declining part of your pay.
After that, an IRA usually gives you more choice and lower costs than a typical workplace plan menu. If you still have money to save after filling the IRA, go back to the 401(k).
What each one is
They are both tax-advantaged wrappers, not investments. What goes inside them is up to you in an IRA, and up to your plan's menu in a 401(k).
| 401(k) | IRA | |
|---|---|---|
| Who provides it | Your employer | You, at a broker or bank of your choice |
| How you fund it | Payroll deduction, before you see the money | A transfer you make yourself |
| Employer match | Often — this is the decisive advantage | No |
| Investment choice | A menu your employer's plan sets | Effectively the whole market at most brokers |
| Contribution limit | Higher, set annually by the IRS | Lower, set annually by the IRS |
| If you change jobs | Stays behind unless you roll it over | Follows you — it was never tied to a job |
Why the match settles the order
An employer match is money added to your account because you contributed. It is a return on your contribution before any investment performance at all, and nothing else in this article competes with it.
Two details worth checking in your plan documents: the formula, which sets how much you have to contribute to get the full match, and the vesting schedule, which sets how long you have to stay before the matched money is definitively yours.
Traditional or Roth — the other axis
Both 401(k)s and IRAs come in traditional and Roth versions, and that choice is separate from which account you use. It is a question about when you pay tax, not about which wrapper is better.
Broadly: traditional gives you the tax break now and taxes withdrawals later; Roth is funded with money you have already paid tax on, and qualified withdrawals come out untaxed. Which wins depends on your tax rate now versus in retirement, which nobody knows for certain.
Where the fees hide
In a 401(k) the fees are set by the plan and you cannot shop around: an administration fee plus the expense ratios of the funds on the menu. Some menus are excellent; some are expensive and there is nothing you can do about it.
In an IRA you choose the provider, so you choose the cost. That is the main reason the IRA often comes second in the order — after the match, but ahead of extra 401(k) contributions.
Frequently asked questions
Can I have both a 401(k) and an IRA?
Yes. They have separate contribution limits. Whether your traditional IRA contribution is tax-deductible can be affected by having a workplace plan and by your income — the IRS publishes the rules and the thresholds.
What happens to my 401(k) if I leave the job?
It stays in the plan unless you move it. You can generally leave it, roll it into your new employer's plan, or roll it into an IRA. A rollover done incorrectly can trigger tax, so follow the provider's process.
Is an employer match really worth that much?
It is an immediate return on the money you contribute, before any market performance. That combination does not exist anywhere else, which is why it comes first.
Is this financial advice?
No. It is general education. Contribution limits, deductibility and tax treatment depend on your income and filing status — the IRS is the authority, and a tax professional is the person to ask about your case.
Run the numbers
This guide explains the concept. These put your own figures on it.
- Retirement Savings CalculatorCalculate how much to save in a 401(k), Traditional IRA, or Roth IRA, with employer match and 2026 limits.
- Roth vs. Traditional CalculatorCompare the after-tax retirement value of a Roth vs. Traditional 401(k) or IRA contribution using the 2026 limits.
- Compound Interest CalculatorSee how your money grows with compound interest — add contributions and compare to the S&P 500's real historical returns.
Free and no sign-up, on financeinyourpocket.com — our sister site.
Terms used in this guide
- Contribution limit
- The most the IRS lets you put into a retirement account in one tax year. It is a combined ceiling across your Traditional and Roth IRAs, not one limit each, and it changes most years.
- Catch-up contribution
- An extra amount the IRS lets you add on top of the normal limit once you reach a qualifying age. It replaces nothing — it is added to the standard limit for that year.
- Traditional vs Roth
- Two ways of getting the tax break. A Traditional IRA may cut your taxable income the year you pay in, and you are taxed when you take it out. A Roth is paid in with money already taxed, and qualified withdrawals come out untaxed.
- Expense ratio
- The yearly slice a fund or ETF takes out of its own assets to run itself. You never see it billed — it comes out of the fund's return — and it applies on top of anything your platform charges.
- Advisory fee
- The yearly percentage a robo-advisor takes for choosing and rebalancing your portfolio, charged on your whole balance whether the market went up or down. It sits on top of the expense ratios of the funds it buys.
Sources
- Internal Revenue Service — Retirement topics — 401(k) and profit-sharing plan contribution limits
- Internal Revenue Service — Individual Retirement Arrangements (IRAs)
The content provided on this site is for educational and informational purposes only and does not constitute financial, legal, or tax advice.