How does your new employer's 401(k) plan look — solid, or not so much?

Strong — low-cost index funds and reasonable fees; Average, or I haven't dug into it yet; Weak — limited choices and high fees, or I don't have a new 401(k) right now

Do you earn enough that you do — or expect to do — a backdoor Roth IRA each year? (A pre-tax IRA balance triggers the pro-rata rule and makes the backdoor Roth partly taxable.)

Yes — I do the backdoor Roth now, or my income is high enough that I'll need to; Maybe down the road, but not currently; No — my income is under the Roth IRA limit, so I just contribute directly

Does your old 401(k) hold a meaningful amount of your former employer's stock that has gained a lot of value?

Yes — a significant chunk of appreciated company stock; A little, but nothing major; No company stock at all

How much does shielding this money from lawsuits or creditors matter for your situation? (Think business owners, doctors, landlords, or anyone in a litigation-exposed field.)

It's a real concern — my work or assets carry liability risk; Somewhat — I'd like the protection but it isn't urgent; Not really — I'm a typical W-2 employee with ordinary risk

Are you 55 or older — or close — and might you stop working before 59½?

Yes — I'm 55+ (or nearly) and could retire or leave work before 59½; I'm in my late 40s or early 50s — it's on the horizon; No — retirement is well over a decade out, or I'll work past 59½

If you ever needed to reach this money before retirement, which option matters more to you?

Being able to take a loan against it and pay myself back; Honestly, I don't expect to touch it early at all; Penalty-free withdrawals for things like a first home or college

How much do you want hands-on control over your investment choices?

A lot — I want the full universe of funds, ETFs, maybe individual stocks; Some — but a solid index-fund lineup would be plenty; Not much — give me a target-date fund and let me forget about it

Do you expect to do Roth conversions down the road — gradually moving pre-tax money to Roth in lower-income years?

Yes — Roth conversions are part of my long-term plan; Maybe — I've heard of it but haven't planned anything; No — not something I'm considering

Do you actually have a new employer 401(k) that will accept the rollover?

Yes — I have a new plan and it accepts roll-ins; I have a new plan, but there's a waiting period before I can roll in; No — I'm between jobs, self-employed, or my new plan won't take it

Should I Roll My Old 401(k) Into an IRA or a New 401(k)?

Answer a handful of honest questions about your finances and your new job, and this Decision Guide will tell you whether to roll your old 401(k) into an IRA, into your new employer's plan, or just leave it alone.

Published May 14, 2026

Questions in this guide:

How does your new employer's 401(k) plan look — solid, or not so much?
- Strong — low-cost index funds and reasonable fees
- Average, or I haven't dug into it yet
- Weak — limited choices and high fees, or I don't have a new 401(k) right now
Do you earn enough that you do — or expect to do — a backdoor Roth IRA each year? (A pre-tax IRA balance triggers the pro-rata rule and makes the backdoor Roth partly taxable.)
- Yes — I do the backdoor Roth now, or my income is high enough that I'll need to
- Maybe down the road, but not currently
- No — my income is under the Roth IRA limit, so I just contribute directly
Does your old 401(k) hold a meaningful amount of your former employer's stock that has gained a lot of value?
- Yes — a significant chunk of appreciated company stock
- A little, but nothing major
- No company stock at all
How much does shielding this money from lawsuits or creditors matter for your situation? (Think business owners, doctors, landlords, or anyone in a litigation-exposed field.)
- It's a real concern — my work or assets carry liability risk
- Somewhat — I'd like the protection but it isn't urgent
- Not really — I'm a typical W-2 employee with ordinary risk
Are you 55 or older — or close — and might you stop working before 59½?
- Yes — I'm 55+ (or nearly) and could retire or leave work before 59½
- I'm in my late 40s or early 50s — it's on the horizon
- No — retirement is well over a decade out, or I'll work past 59½
If you ever needed to reach this money before retirement, which option matters more to you?
- Being able to take a loan against it and pay myself back
- Honestly, I don't expect to touch it early at all
- Penalty-free withdrawals for things like a first home or college
How much do you want hands-on control over your investment choices?
- A lot — I want the full universe of funds, ETFs, maybe individual stocks
- Some — but a solid index-fund lineup would be plenty
- Not much — give me a target-date fund and let me forget about it
Do you expect to do Roth conversions down the road — gradually moving pre-tax money to Roth in lower-income years?
- Yes — Roth conversions are part of my long-term plan
- Maybe — I've heard of it but haven't planned anything
- No — not something I'm considering
Do you actually have a new employer 401(k) that will accept the rollover?
- Yes — I have a new plan and it accepts roll-ins
- I have a new plan, but there's a waiting period before I can roll in
- No — I'm between jobs, self-employed, or my new plan won't take it

When you leave a job, your old 401(k) has four possible homes — leave it where it is, roll it into your new employer's plan, roll it into an IRA, or cash it out — and cashing out is almost always the wrong answer once taxes and the 10% penalty are counted. Between the two real choices, an IRA wins on investment selection and flexibility: a near-unlimited menu of funds, easier partial Roth conversions, and penalty-free early withdrawals for things like a first home or college. Rolling into your new 401(k) wins on protection and a few specific features: unlimited federal creditor shielding (an IRA's protection is capped and varies by state), the Rule of 55, an available loan, and — critically for high earners — keeping your traditional IRA balance at zero so the backdoor Roth's pro-rata rule never bites. Watch two traps regardless of which way you go: always use a direct trustee-to-trustee rollover so nothing is withheld, and if your old plan holds appreciated company stock, look into net unrealized appreciation before moving anything. And know that the financial industry generally earns more when you roll into an IRA, so blanket 'roll it to an IRA' advice deserves a second look — for plenty of people, the honest answer is simply to leave a good plan alone.

Sources

Rollovers of retirement plan and IRA distributions — Internal Revenue Service
How to roll over a 401(k): What to do with an old 401(k) — Fidelity
Understanding 401(k) to IRA rollover rules — Vanguard
What is the Rule of 55? — Fidelity
Backdoor Roth IRA: What it is and how to set it up — Vanguard
Are Retirement Accounts Protected From Lawsuits? — Experian

Should I Roll My Old 401(k) Into an IRA or a New 401(k)?

Sources

Related Decision Guides