401(k) vs. IRA — Key Differences and Which to Fund First
Side-by-Side Comparison
| Feature | 401(k) | IRA (Roth / Traditional) |
|---|---|---|
| Who Opens It | Employer sponsors the plan | You open it yourself at a brokerage |
| 2025 Contribution Limit | $23,500 ($31,000 if 50+) | $7,000 ($8,000 if 50+) |
| Employer Match | Yes — often 3-6% of salary | No |
| Investment Options | Limited menu (15-30 funds typically) | Nearly unlimited (stocks, ETFs, bonds, etc.) |
| Fees | Varies widely — some plans have high fees | You control costs; can choose low-fee providers |
| Tax Options | Traditional and Roth (if employer offers it) | Traditional or Roth (separate accounts) |
| Loan Option | Many plans allow 401(k) loans | No loans allowed |
| RMDs | Required at 73 (unless still working at plan sponsor) | Traditional: age 73. Roth IRA: none |
| Income Limits | No income limits | Roth IRA has income limits; Traditional deduction may phase out |
| Portability | Tied to employer; must roll over when you leave | Fully portable; stays with you |
The Optimal Funding Order
Financial planners generally recommend this priority for retirement savings:
| Priority | Action | Why |
|---|---|---|
| 1st | 401(k) up to employer match | Free money — instant 50-100% return on matched contributions |
| 2nd | Pay off high-interest debt | Guaranteed return equal to the interest rate you’re paying |
| 3rd | Max out Roth IRA ($7,000) | Tax-free growth, better investment options, more flexibility |
| 4th | Max out 401(k) ($23,500) | Higher limit, additional tax-deferred growth |
| 5th | Taxable brokerage account | No contribution limits, but less tax-advantaged |
This order works for most people, but your situation may warrant adjustments. If your 401(k) has excellent low-cost index fund options, maxing it out before the IRA can make sense. If your 401(k) plan has terrible high-fee options, prioritize the IRA after capturing the match.
When the 401(k) Wins
The 401(k) has two clear advantages: the employer match and the much higher contribution limit. If your employer matches 50% of your first 6%, that’s an immediate 50% return — no investment in the world can guarantee that. And if you can save more than $7,000 per year for retirement, the 401(k)’s $23,500 limit lets you shelter far more from taxes.
The 401(k) also wins for high earners who exceed Roth IRA income limits and don’t want to deal with the backdoor Roth strategy. With a 401(k), there are no income restrictions for either Traditional or Roth contributions.
When the IRA Wins
The IRA wins on investment flexibility and cost control. A 401(k) limits you to whatever funds your employer selected — which may include expensive actively managed funds or a narrow menu. An IRA at a low-cost brokerage gives you access to thousands of ETFs, individual stocks, bonds, and index funds with rock-bottom expense ratios.
The Roth IRA specifically offers unique benefits no 401(k) can match: no RMDs ever, penalty-free contribution withdrawals at any time, and tax-free inheritance for beneficiaries.
401(k) Fee Comparison
Rolling Over a 401(k) to an IRA
When you leave an employer, rolling your 401(k) into an IRA is usually the best move. You gain access to better investment options, lower fees, and more control. The process is straightforward: open an IRA at your preferred brokerage, request a direct rollover from your old 401(k) plan, and choose your investments.
One exception: if you have a Roth 401(k) and want to avoid RMDs, roll it into a Roth IRA rather than a Traditional IRA. This preserves the tax-free status and eliminates RMDs.
Key Takeaways
- 401(k)s offer employer matching and higher limits ($23,500); IRAs offer better investment options and more flexibility ($7,000).
- The optimal funding order: 401(k) to match → high-interest debt → max Roth IRA → max 401(k) → taxable brokerage.
- Always capture your full employer match before funding an IRA — it’s the closest thing to guaranteed returns in investing.
- Compare your 401(k) fees to what you’d pay in a self-directed IRA — the difference can cost hundreds of thousands over a career.
- When changing jobs, roll your old 401(k) into an IRA for better options and lower costs.
Frequently Asked Questions
Should I contribute to a 401(k) or IRA first?
Contribute to your 401(k) first — but only up to the employer match. After capturing the match, max out a Roth IRA for its tax-free growth and flexibility. Then return to the 401(k) to contribute up to the annual limit. This order maximizes both the employer match benefit and your investment options.
Can I have both a 401(k) and an IRA?
Yes. You can contribute to both a 401(k) and an IRA in the same year — they have separate contribution limits. The only restriction is that your Traditional IRA tax deduction may phase out if you also have a 401(k) and your income exceeds certain thresholds.
Is a 401(k) or IRA better for retirement savings?
Neither is universally better. A 401(k) is better for the employer match and higher contribution limits. An IRA is better for investment choice and lower fees. The best strategy uses both: 401(k) for the match and high limits, IRA for optimized investments and Roth tax-free growth.
What happens to my 401(k) when I leave my job?
You have four options: leave it in the old plan, roll it to your new employer’s plan, roll it into an IRA (usually the best choice for better options and lower fees), or cash it out (worst choice — triggers taxes and penalties). A direct rollover to an IRA is typically the smartest move.
Why do financial advisors recommend maxing out a Roth IRA before the rest of the 401(k)?
After the employer match, a Roth IRA typically offers lower fees, better investment options, tax-free growth, no RMDs, and penalty-free access to contributions. These advantages make the Roth IRA a more efficient place to put the next dollar of retirement savings before filling up the remaining 401(k) space.