Leaving your 401(k) at a former employer isn't always the wrong move — but it's rarely the best one. Here's a frank comparison to help you decide.
Your four options when leaving a job
When you leave an employer, you have four choices for your 401(k):
1. **Roll it to an IRA** — most flexibility, most control
2. **Roll it to your new employer's plan** — simplicity if the new plan is good
3. **Leave it at your old employer** — acceptable if fees are low and you're organized
4. **Cash it out** — almost always the wrong choice (taxes + 10% penalty + lost growth)
Let's look at option 3 vs. option 1 — the most common decision.
When leaving it at the old plan makes sense
- **Low fees**: Some large employer plans (think Google, Microsoft, Boeing) have institutional share classes with expense ratios as low as 0.02%. If your plan has excellent fund options at near-zero cost, rolling out may not save you money.
- **Net Unrealized Appreciation (NUA)**: If you hold company stock in your 401(k) with significant unrealized gains, NUA treatment may allow you to pay capital gains rates (not ordinary income) on those gains. This requires staying in the plan temporarily. Your advisor will identify if you have NUA opportunity.
- **Creditor protection**: In some states, 401(k)s receive stronger creditor protection than IRAs. If you're in a profession with liability exposure (doctor, contractor, business owner), your advisor may recommend keeping funds in the plan.
When rolling to an IRA is the better choice
- **You're consolidating multiple accounts** — you can't combine two old 401(k)s together, but you can roll both into one IRA.
- **Your plan has limited investment options** — many employer plans offer a constrained menu of 10–20 funds with no ETF access.
- **Fees are high** — if your plan charges an annual recordkeeping fee, high-expense-ratio funds, or both, an IRA is almost certainly cheaper.
- **You're planning Roth conversions** — this is much easier to manage within an IRA.
- **Estate planning** — IRAs offer more flexible beneficiary designation options.
- **You tend to forget about accounts** — consolidation is its own value.
The honest answer
For most people — especially those who've changed jobs multiple times — rolling old 401(k)s into a single IRA is the right move. It eliminates the mental overhead, consolidates fees, and gives you a unified picture of your retirement savings.
The cases where staying in the plan wins are real but less common. Your advisor will evaluate your specific plan documents, fees, and situation before making a recommendation.
- **Low fees**: Some large employer plans (think Google, Microsoft, Boeing) have institutional share classes with expense ratios as low as 0.02%. If your plan has excellent fund options at near-zero cost, rolling out may not save you money.
- **Net Unrealized Appreciation (NUA)**: If you hold company stock in your 401(k) with significant unrealized gains, NUA treatment may allow you to pay capital gains rates (not ordinary income) on those gains. This requires staying in the plan temporarily. Your advisor will identify if you have NUA opportunity.
- **Creditor protection**: In some states, 401(k)s receive stronger creditor protection than IRAs. If you're in a profession with liability exposure (doctor, contractor, business owner), your advisor may recommend keeping funds in the plan.
When rolling to an IRA is the better choice
- **You're consolidating multiple accounts** — you can't combine two old 401(k)s together, but you can roll both into one IRA.
- **Your plan has limited investment options** — many employer plans offer a constrained menu of 10–20 funds with no ETF access.
- **Fees are high** — if your plan charges an annual recordkeeping fee, high-expense-ratio funds, or both, an IRA is almost certainly cheaper.
- **You're planning Roth conversions** — this is much easier to manage within an IRA.
- **Estate planning** — IRAs offer more flexible beneficiary designation options.
- **You tend to forget about accounts** — consolidation is its own value.
The honest answer
For most people — especially those who've changed jobs multiple times — rolling old 401(k)s into a single IRA is the right move. It eliminates the mental overhead, consolidates fees, and gives you a unified picture of your retirement savings.
The cases where staying in the plan wins are real but less common. Your advisor will evaluate your specific plan documents, fees, and situation before making a recommendation.
For most people — especially those who've changed jobs multiple times — rolling old 401(k)s into a single IRA is the right move. It eliminates the mental overhead, consolidates fees, and gives you a unified picture of your retirement savings.
The cases where staying in the plan wins are real but less common. Your advisor will evaluate your specific plan documents, fees, and situation before making a recommendation.