As a mid-career professional changing jobs, should they roll over their old 401(k) to an IRA or the new employer’s plan, and which providers are best?

As a mid-career professional, deciding whether to roll your old 401(k) into a Traditional IRA or your new employer's plan depends on investment control, fee structures, and future financial moves (like a backdoor Roth IRA).

Rollover to an IRA vs. New Employer's Plan

• Rolling over to a Traditional IRA
  • Pros: Unlimited investment choices (ETFs, individual stocks, bonds, mutual funds), typically lower fund expense ratios, and freedom from employer plan administrative fees. You also consolidate multiple old accounts into one permanent spot.
  • Cons: It triggers the pro-rata rule , which complicates making backdoor Roth IRA contributions if your income is high. Traditional IRAs also lack certain federal creditor protections that ERISA gives to employer 401(k)s.
• Rolling over to the New Employer’s Plan
  • Pros: Keeps your retirement accounts compartmentalized, preserves the option for a future Backdoor Roth IRA without tax traps, and offers strong legal asset protection from creditors. Some modern plans also feature solid, low-cost index options.
  • Cons: You are limited to the fund lineup chosen by your new employer, and the plan may charge administrative or maintenance fees.

Best Rollover Providers

If you choose the IRA route, top brokerage choices stand out for zero account fees and robust toolsets:

• Fidelity Investments : Excellent for beginners and hands-on investors alike, featuring intuitive mobile tools, zero expense ratio index funds, and strong customer service.
• Vanguard : Ideal for buy-and-hold index fund investors looking for low-cost mutual funds and time-tested stewardship.
• Charles Schwab : Highly rated for low fees, comprehensive research, and seamless all-in-one platform trading for stocks and ETFs.

To help narrow down the best path for you, do you plan to utilize a backdoor Roth IRA in the near future, and does your new employer's 401(k) plan offer low-cost index funds?

For a mid-career professional changing jobs, the “best” choice is usually the one that gives the strongest combination of low costs, good investment choices, tax flexibility, and simplicity. There is no universal winner: an IRA is not automatically better than a 401(k), and a new employer plan is not automatically better than an old one. The IRS generally allows you to leave the money in the old plan, roll it into the new employer’s plan (if allowed), roll it into an IRA, or take a taxable distribution.

A practical decision framework:

Option 1: Roll the old 401(k) into the new employer’s 401(k)

Often best if:

• The new plan has very low fees and good institutional funds.
• You want fewer accounts to manage.
• You may want to use future 401(k) features such as loans (if offered).
• You may benefit from keeping pre-tax retirement money out of IRAs for future Roth conversion planning.

Advantages

• Simple: one workplace account.
• Strong legal protections often apply to employer plans.
• Easier to manage asset allocation across your career.
• Keeps the door open for “backdoor Roth IRA” strategies because large pre-tax IRA balances can complicate those conversions.

Disadvantages

• Investment choices may be limited.
• Some employer plans have higher administrative fees.

Before rolling in, compare:

• Expense ratios of available funds
• Administrative fees
• Whether the plan has low-cost index funds
• Whether it accepts rollovers

The IRS specifically recommends comparing investment options, fees, and consolidation benefits before moving money into a new employer plan.

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Option 2: Roll the old 401(k) into an IRA

Often best if:

• You want maximum investment flexibility.
• The new employer plan is expensive or has poor fund choices.
• You want to manage retirement savings yourself.

Advantages

• Huge investment menu: ETFs, mutual funds, bonds, target-date funds, etc.
• Easy to consolidate multiple old accounts.
• Many IRA providers offer very low-cost investing.

Disadvantages

• You lose some 401(k)-specific features.
• Traditional IRA balances can create complications for people using the backdoor Roth IRA strategy.
• Creditor protections vary by state and account type.
• IRAs generally do not offer employer-plan loan features.

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Option 3: Leave it in the old 401(k)

This is underrated.

Consider it if:

• The old plan has excellent low-cost funds.
• You are happy with the investment choices.
• The account is large enough that the provider gives you good institutional pricing.

The IRS notes that leaving money in an old plan can make sense when fees are low and investment options are attractive.

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Providers many professionals commonly consider

IRA providers

Good choices for low-cost self-directed investing:

• Fidelity Investments — strong low-cost index fund lineup, good customer service, broad investment access.
• Vanguard — known for low-cost index funds and long-term investing philosophy.
• Charles Schwab Corporation — strong brokerage platform and ETF access.

401(k) providers

The provider matters less than the specific employer plan, because fees and fund menus vary by employer. Large recordkeepers commonly include:

• Fidelity Investments
• Vanguard
• Empower
• T. Rowe Price

A mediocre plan at a famous provider can still be worse than an excellent plan at a less familiar provider.

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A common “best practice” approach for mid-career professionals

Many financially sophisticated professionals use something like:

1. Check the new 401(k) first - If fees are low and funds are good → roll old 401(k) there.
2. If the new plan is expensive → use a low-cost IRA - Especially at Fidelity, Vanguard, or Schwab.
3. Keep Roth and pre-tax money organized - Avoid unnecessary tax complications.
4. Do a direct rollover - Have the old plan send money directly to the new plan or IRA custodian. This avoids withholding problems and keeps the rollover tax-free.

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Situations where the answer changes

A few details can materially change the recommendation:

• Age 55+ and retiring soon: keeping money in a 401(k) may preserve certain early-withdrawal advantages.
• High income and using backdoor Roth contributions: avoiding a traditional IRA rollover may be preferable.
• Company stock in the old 401(k): special tax rules may apply.
• Large account balance: institutional 401(k) pricing may beat retail IRA costs.

If you share your age range, approximate 401(k) balance, whether the new employer’s plan is with a known provider, and whether you do backdoor Roth IRA contributions, I can help compare the options more specifically.

For a mid-career job changer, I’d usually favor the new employer’s 401(k) if it’s a good, low-cost plan; otherwise, a rollover IRA is often better. There isn’t a universal winner.

My decision rule

The IRS explicitly recognizes both the new-plan and IRA rollover routes, and recommends comparing investment choices, fees and consolidation benefits.

Why I often lean toward the new 401(k) for mid-career professionals

The biggest underappreciated advantage is preserving flexibility for future Roth conversions/backdoor Roth contributions.

A large traditional rollover IRA can create the pro-rata tax issue if you later make nondeductible IRA contributions and convert them to Roth. Keeping the old 401(k) money inside a 401(k) avoids that particular complication. If the new plan accepts rollovers, this can be a very clean setup.

There are other advantages: 401(k) assets generally have stronger federal creditor protection, may permit loans, and can have special withdrawal advantages. For example, someone who leaves an employer during or after the year they turn 55 may be able to take penalty-free distributions from that employer's 401(k), whereas an IRA generally doesn't provide that age-55 separation exception.

When I'd choose the IRA instead

I'd favor a rollover IRA when the new plan is expensive or has a lousy investment menu.

An IRA gives you access to essentially the entire brokerage universe—low-cost ETFs, mutual funds, bonds, CDs, etc.—rather than the perhaps 10–30 funds selected by an employer plan.

It's particularly attractive if you want to build a straightforward portfolio such as:

• U.S. total-market index fund
• International total-market index fund
• U.S. bond index fund

and leave it alone for decades.

One important caveat: don't assume an IRA is automatically cheaper. A good institutional 401(k) can have extraordinarily low fund expenses and administrative costs. Compare the actual expense ratios and plan fees.

Best providers for a rollover IRA

My shortlist would be:

1. Fidelity — best all-around choice

Excellent for someone who wants low costs, broad investment choices and a polished platform. Fidelity currently lists $0 account fees and $0 minimums for its rollover IRA, along with a broad selection of investments.

2. Charles Schwab — excellent alternative

Especially appealing if you value customer service, branches or help executing the rollover. Schwab says its rollover IRA has no account-opening or maintenance fee and provides access to stocks, ETFs, mutual funds, bonds and CDs.

3. Vanguard — excellent for a simple index-fund investor

A particularly natural choice if you already know you want a straightforward Vanguard-style portfolio. Vanguard currently advertises $0 online stock/ETF commissions, though its brokerage fee structure differs from Fidelity and Schwab.

My practical ranking: Fidelity ≈ Schwab > Vanguard for most people today, with Vanguard becoming more attractive if you're specifically committed to its ecosystem.

One important implementation detail

If you do roll over, use a direct trustee-to-trustee rollover whenever possible. Don't have the 401(k) provider send the check to you personally unless you understand the withholding rules. An indirect distribution paid to you generally has 20% mandatory federal withholding, and you have 60 days to complete the rollover.

A direct rollover avoids that headache.

What I'd do in a typical mid-career case

Suppose someone has $250,000 in an old 401(k), starts a new job, and the new employer offers a 401(k) with Vanguard/Fidelity institutional index funds costing ~0.05–0.10%.

I'd probably roll the $250,000 into the new 401(k), assuming the plan has no significant administrative fees or other drawbacks. The consolidation, creditor protection and preservation of Roth-conversion flexibility would outweigh the additional investment choices of an IRA.

If the new 401(k) instead costs 0.75%–1% and offers mediocre actively managed funds, I'd likely roll the $250,000 into a Fidelity or Schwab rollover IRA.

And if the old 401(k) itself is exceptionally good, doing nothing can be the best answer. The IRS specifically notes that you can leave money in the old plan if its investment choices and fees are attractive.

If you give me the old 401(k)'s provider/funds, the new employer's 401(k) provider and fees, your approximate balance, and whether you expect to use a backdoor Roth, I can tell you which of the three options I'd pick and why.

Rolling over an old 401(k) to a Traditional or Roth IRA generally provides mid-career professionals with much broader investment choices, lower fee transparency, and permanent control, whereas rolling to a new employer's plan is better only if the new plan offers institutional low-cost funds or if you need access to specific rules like the Backdoor Roth IRA or reverse rollover protections.

Choosing the right path depends on weighing your specific goals, account features, and long-term convenience.

IRA vs. New Employer's Plan: Key Comparisons

When to Choose an IRA

• You want total control: An IRA is independent of any employer, meaning you never have to move these funds again if you switch jobs in the future.
• You want custom investments: If your new employer's plan has high expense ratios or a poor selection of funds, an IRA lets you invest in low-cost index funds or ETFs of your choice.
• Drawbacks to consider: Holding a Traditional IRA balance can complicate doing a Backdoor Roth IRA later due to the IRS pro-rata rule.

When to Choose the New Employer's Plan

• Institutional pricing: Some large corporate 401(k) plans offer access to institutional-class shares with ultra-low expense ratios that beat retail brokerages.
• Backdoor Roth clarity: If you utilize a Backdoor Roth IRA strategy annually, keeping pre-tax money out of a Traditional IRA prevents pro-rata tax complications.
• Drawbacks to consider: If you leave this new job later, you will have to process yet another rollover.

Best IRA Providers for Rollovers

For a seamless rollover process, low fees, and strong customer service, industry leaders stand out:

• Fidelity Investments: Known for zero-expense-ratio index funds, robust digital tools, and strong customer support. Learn more or start a transfer via Fidelity.
• Charles Schwab: Excellent research capabilities, zero-fee online stock and ETF trades, and extensive physical branch access. Explore options at Charles Schwab.
• Vanguard: Pioneer of low-cost indexing and client-owned structure, ideal for a buy-and-hold retirement strategy. Check details at Vanguard.

If you'd like to narrow this down further, tell me:

• What are the expense ratios and fund options in your new employer's 401(k)?
• Do you plan on doing a Backdoor Roth IRA contribution in the near future?

I can give you a definitive recommendation based on your answers.

For a mid-career job changer, I’d usually favor the new employer’s 401(k) if it’s a good, low-cost plan; otherwise, a rollover IRA is often better. The right choice hinges on fees, investment options, and a couple of tax-planning issues that become especially important in mid-career.

The short version

Both an IRA and a new 401(k) can generally receive a direct, tax-free rollover of a traditional 401(k).

Why I'd lean toward the new 401(k) for many mid-career professionals

There are three particularly valuable advantages:

1. It keeps pre-tax money out of your IRA. This matters if you expect to make backdoor Roth IRA contributions. Having a large traditional/SEP/SIMPLE IRA balance can make the tax treatment of a Roth conversion much less attractive because of the pro-rata rules. A 401(k) can generally keep those dollars separate.
2. 401(k)s have some advantages IRAs don't. Employer plans can offer loans, institutional-priced funds, and, importantly, potentially penalty-free withdrawals after leaving an employer at age 55 under the applicable rules. IRAs generally don't get the age-55 separation-from-service exception.
3. It simplifies future job changes. You can potentially roll the old 401(k) into the new plan and eventually repeat the process at subsequent employers.

But don't automatically choose the new 401(k). Some employer plans have expensive administrative fees or mediocre investment choices. A cheap IRA at a major brokerage can be substantially better. Vanguard specifically notes that some employer plans have institutional funds with expense ratios lower than what you'd find in an IRA.

When I'd choose the IRA instead

I'd favor a rollover IRA if the new 401(k):

• Has high administrative fees.
• Has expensive actively managed funds.
• Offers a very limited investment menu.
• Has no particularly useful features that justify those costs.
• Doesn't accept incoming rollovers.

An IRA gives you a much broader universe of ETFs, mutual funds, bonds, etc.

One important caveat: if you're a high-income earner who expects to use the backdoor Roth strategy, I'd pause before putting a large traditional 401(k) into an IRA. In that situation, the new 401(k) can be substantially more valuable than the extra investment flexibility of an IRA.

Best providers

For a rollover IRA, my shortlist would be:

1. Fidelity Investments — best overall for many investors

I'd put Fidelity at the top for a straightforward, low-cost rollover IRA. It has $0 account service fees, $0 minimums on Fidelity mutual funds, and a large selection of investments. It also offers zero-expense-ratio index mutual funds.

2. Charles Schwab — excellent alternative

Schwab is particularly attractive if you value customer service and in-person assistance. Its rollover IRA has no opening or maintenance fee, no minimum deposit, and broad investment choices; Schwab also provides dedicated rollover consultants.

3. Vanguard — excellent for a simple index-fund strategy

Vanguard remains a very strong choice if you want a straightforward portfolio built around low-cost Vanguard index funds. Its main disadvantage relative to Fidelity/Schwab is that the brokerage experience and customer-service infrastructure are less extensive.

My decision rule

I'd use this sequence:

Step 1: Get the new employer's 401(k) fee disclosure and fund lineup.

Step 2: If it has excellent low-cost index funds and reasonable administrative fees → roll the old 401(k) into it.

Step 3: If the new plan is expensive or has poor investment choices → roll the old 401(k) into a Fidelity, Schwab, or Vanguard traditional rollover IRA.

Step 4: If you're likely to use a backdoor Roth, strongly consider keeping the old 401(k) money in a 401(k) rather than creating a large traditional IRA balance.

Step 5: If the old 401(k) has unusually good funds or exceptionally low costs, don't overlook the simplest option: leave it where it is. You aren't required to move it merely because you've changed jobs.

And when you do roll it over, I'd generally use a direct trustee-to-trustee rollover, rather than having the check made payable to you. That minimizes the risk of withholding, missed deadlines, and an unintended taxable distribution.

If you give me (1) your approximate age, (2) old 401(k) balance, (3) new employer's 401(k) provider/fund lineup, (4) income/tax bracket, and (5) whether you currently do or expect to do backdoor Roths, I can tell you which of the three—old 401(k), new 401(k), or IRA—I'd choose in your specific situation.

As a mid-career professional, choosing where to move your old 401(k) depends on investment flexibility, fee structures, and your future retirement timeline.

IRA vs. New Employer's Plan: How to Choose

• Roll over to a Traditional/Rollover IRA
  • Pros: Maximum investment selection (stocks, bonds, ETFs, thousands of mutual funds), full personal control, and freedom from employer plan constraints.
  • Cons: Loses the "Rule of 55" perk (which lets you withdraw from a current 401k penalty-free if you leave a job at age 55 or older). It can also complicate future backdoor Roth IRA strategies due to the pro-rata rule.
• Roll over to the New Employer’s Plan
  • Pros: Keeps all workplace retirement accounts consolidated under one roof, allows penalty-free withdrawals at age 55 if you retire from that employer, and shields assets from creditors more robustly than an IRA (under federal law).
  • Cons: Limited strictly to the fund lineup chosen by your new employer, which may feature higher administrative or expense ratios.

Best IRA Providers

For a rollover IRA, top brokerage firms stand out for low costs, robust research tools, and user-friendly service:

1. Fidelity Investments: Widely recognized as a top choice for retirement due to $0 account fees and a massive selection of low-cost or zero-fee index funds.
2. Charles Schwab: Excellent for investors who value research, educational resources, and access to physical branch locations alongside a dedicated rollover assistance team.
3. Vanguard: The gold standard for low-cost, passive index fund and ETF investing, built with an investor-owned structure that prioritizes low expense ratios.

Community Perspectives

I rolled mine into a traditional IRA with Fidelity just for the sheer variety of low-cost index funds. My old employer's plan had terrible, high-fee choices.

If you ever plan on doing a Backdoor Roth IRA in the future, watch out for the pro-rata rule if you keep a traditional rollover IRA loaded with pre-tax money.

To help tailor this to your situation, tell me:

• Do you plan on doing a backdoor Roth IRA in the coming years?
• Are the fees and fund choices in your new employer's plan good or poor?

For a mid-career professional, I’d usually favor the new employer’s 401(k) if it’s a good plan; otherwise, a rollover IRA at a low-cost brokerage is often better. The key is to compare the actual new plan rather than assuming an IRA is automatically superior.

The IRS explicitly allows you to leave the money in the old plan, move it to the new employer’s plan (if accepted), or roll it into an IRA. A direct trustee-to-trustee rollover is generally the cleanest way to avoid withholding and accidental taxes.

My decision framework

When I'd choose the new employer's 401(k)

I'd lean strongly toward the new 401(k) if:

• It has low-cost institutional index funds or a good target-date fund.
• The all-in administrative costs are low.
• It accepts incoming rollovers.
• You may want to do backdoor Roth contributions in future.
• You value having all your workplace retirement money in one account.
• You might retire in your 50s and want to preserve the special 401(k) withdrawal rules.
• The plan offers useful features such as loans or a good Roth 401(k).

The backdoor-Roth point is particularly important for a higher-income mid-career professional: moving pre-tax 401(k) money into a traditional IRA can make future Roth conversions less attractive because IRA conversions are subject to the tax rules reported on Form 8606.

When I'd choose a rollover IRA

I'd favor an IRA when the new 401(k) is mediocre—particularly if it has:

• High expense ratios or significant plan fees.
• A poor selection of funds.
• Expensive actively managed funds when inexpensive index funds aren't available.
• An insurance-company product or other unnecessarily complicated investments.

An IRA gives you a much larger investment universe and makes it easier to build a simple portfolio of low-cost index funds/ETFs. The tradeoff is that you lose some 401(k)-specific features, and traditional IRAs have required minimum distributions while 401(k) rules can be more favorable in some circumstances.

Which providers?

For a straightforward rollover IRA, my shortlist would be:

• fidelity.com — excellent all-around choice; particularly attractive for low-cost index funds and ETFs.
• schwab.com — excellent service and investment selection. Schwab currently advertises $0 account-opening/maintenance fees and $0 online commissions on listed stocks and ETFs, plus dedicated rollover consultants.
• investor.vanguard.com — excellent if you specifically want Vanguard's low-cost index-fund ecosystem and a very hands-off approach.

I wouldn't choose among them based on tiny differences in trading commissions. Fund expense ratios, available funds, customer service, and how easy the account is to manage matter more.

One important tax rule

Don't accidentally turn a rollover into a taxable distribution.

Have the old 401(k) administrator send the money directly to the new 401(k) or IRA. If the check is made payable to you, a 401(k) distribution generally has mandatory 20% federal withholding, and you'd need to replace that withheld amount from other funds to roll over the entire balance tax-free.

Also, if the old 401(k) contains company stock, don't automatically roll everything over—the special "net unrealized appreciation" tax treatment can make company-stock rollovers a separate decision.

Bottom line

For a typical mid-career professional, I'd rank the choices:

1. Good new 401(k) → roll the old 401(k) into it. 2. Poor new 401(k) → rollover IRA at Fidelity, Schwab, or Vanguard. 3. Excellent old 401(k) → leaving it there can be perfectly reasonable.

And I would not roll a traditional 401(k) directly into a Roth IRA merely for convenience—the untaxed amount generally becomes taxable income in the year of the conversion.

If you give me the old 401(k) balance, your approximate age, income/tax bracket, whether you already have any traditional/SEP/SIMPLE IRAs, and the provider/fund lineup of the new 401(k), I can tell you which of the three is likely best and why.

As a mid-career professional, you should generally roll over your old 401(k) into an IRA if you want maximum investment choices and lower fees, or into your new employer's plan if you value ultimate legal protection from creditors and easy management.

Financial experts warn that rolling over requires careful thought about future tax rules, fees, and creditor protections.

IRA vs. New Employer Plan

Top Rollover Providers

• Fidelity Investments: Best for low-cost index funds, zero-fee index options, and strong educational tools.
• Charles Schwab: Best for robust research, comprehensive online planning tools, and customer service.
• Vanguard: Best for low-cost, buy-and-hold investing with a heavy focus on mutual funds and ETFs.

If you share your new employer plan's fee structure or your approximate balance , I can help you calculate which option saves you more money over time.

For a mid-career job change, I’d generally favor the new employer’s 401(k) if it’s a good, low-cost plan; otherwise, a rollover IRA is usually the better choice. The key is that the decision should be based on the specific new plan, not simply “401(k) vs. IRA.”

A direct rollover is normally tax-free. The IRS specifically recognizes both moving the old balance into the new employer plan and rolling it into an IRA.

When the new employer’s 401(k) wins

Choose the new plan if:

• Fees are low, particularly the underlying fund expense ratios and plan administrative fees.
• It offers good institutional-quality index funds or a strong target-date fund.
• You want simplicity—one 401(k) to manage rather than an IRA plus current 401(k).
• You may want the option of backdoor Roth contributions later. Keeping pre-tax retirement money inside 401(k)s avoids the IRA pro-rata complication.
• You value the additional creditor protections that can come with employer plans.
• You might retire/leave the employer between 55 and 59½. A 401(k) can potentially allow penalty-free withdrawals under the “age-55 rule”; an IRA generally cannot.

One important catch: the new plan has to accept incoming rollovers. It isn't required to do so.

When a rollover IRA wins

I'd lean toward an IRA when the new 401(k):

• Has high administrative fees.
• Has a poor or unusually expensive fund menu.
• Has limited investment choices.
• Doesn't accept rollovers.
• Has cumbersome investment/recordkeeping features.

An IRA gives you a much broader investment universe and control over the account. But don't assume an IRA is automatically cheaper: some employer plans have institutional funds whose expenses are lower than their IRA equivalents.

My provider shortlist

For a typical self-directed rollover IRA, I'd put these at the top:

Fidelity currently advertises $0 account fees and no minimum for its rollover IRA, with a broad range of investments. Fidelity Fidelity Schwab likewise advertises $0 online commissions for listed stocks and ETFs. Schwab Brokerage Vanguard also currently charges $0 to open an IRA and $0 online commissions for stocks/ETFs.

If you want one answer: I'd use Fidelity for the IRA, unless you already have a strong preference for Schwab or Vanguard.

One important exception: Roth vs. traditional money

Don't blindly put everything into a traditional rollover IRA.

If the old 401(k) contains Roth 401(k) money, that generally belongs in a Roth IRA (or potentially a Roth 401(k) at the new employer), while pre-tax 401(k) money generally goes to a traditional/rollover IRA or pre-tax 401(k). Vanguard, for example, explicitly recommends separate traditional and Roth IRAs when both types of assets are being rolled over.

And if you're considering converting some pre-tax money to Roth, that's a separate tax-planning decision, not simply a rollover.

What I'd do in practice

For someone in mid-career, I'd use this hierarchy:

1. Get the new 401(k)'s fee disclosure and fund menu.
2. If it's low-cost with excellent index funds, roll the old 401(k) into it.
3. If it's mediocre or expensive, open a Fidelity/Schwab/Vanguard rollover IRA and move the old 401(k) there.
4. If you're likely to use the backdoor Roth strategy, think twice before putting pre-tax 401(k) money into an IRA.
5. Use a direct trustee-to-trustee rollover, rather than having the check made payable to yourself. That avoids the 20% mandatory withholding that can apply to distributions paid to you.

Don't cash out the 401(k) just because you're changing jobs. That's generally a taxable distribution and can potentially trigger an additional 10% tax depending on your circumstances.

If you give me (1) your age, (2) approximate old 401(k) balance, (3) whether it's traditional/Roth, (4) the new employer's 401(k) provider, and (5) whether you expect to do backdoor Roths, I can tell you which of the two I'd choose and why.

If you want one answer: I'd use Fidelity for the IRA, unless you already have a strong preference for Schwab or Vanguard.

One important exception: Roth vs. traditional money

Don't blindly put everything into a traditional rollover IRA.

If the old 401(k) contains Roth 401(k) money, that generally belongs in a Roth IRA (or potentially a Roth 401(k) at the new employer), while pre-tax 401(k) money generally goes to a traditional/rollover IRA or pre-tax 401(k). Vanguard, for example, explicitly recommends separate traditional and Roth IRAs when both types of assets are being rolled over.

And if you're considering converting some pre-tax money to Roth, that's a separate tax-planning decision, not simply a rollover.

What I'd do in practice

For someone in mid-career, I'd use this hierarchy:

For a mid-career professional changing jobs, deciding where to send your old 401(k) depends on a balancing act between investment freedom, fees, and future tax strategies (like the Backdoor Roth IRA).

Rollover to an IRA vs. New Employer's Plan

• Rolling over to a Traditional IRA:
  • Pros: Massive selection of low-cost investments (stocks, bonds, ETFs, and mutual funds); total personal control; easier to consolidate multiple old accounts into one.
  • Cons: If you ever utilize a Backdoor Roth IRA (making nondeductible Traditional IRA contributions and converting them), having pre-tax dollars in any Traditional IRA triggers the IRS pro-rata rule , creating an unexpected tax headache. IRAs also offer slightly less robust federal creditor/lawsuit protection compared to ERISA-governed 401(k)s.
• Rolling over to the New Employer’s Plan:
  • Pros: Keeps your pre-tax IRA balance completely clean if you need to do Backdoor Roth conversions down the road. Some employer plans offer institutional share classes with ultra-low fees or specialized funds.
  • Cons: Restricted investment choices dictated by whatever lineup your new employer's plan administrator selected. You will have to move the money again whenever you leave this new job.

For mid-career folks eyeing future Backdoor Roth IRAs as income climbs, keeping pre-tax money out of a Rollover IRA can save a lot of tax friction. But if your new employer's 401(k) has terrible, high-fee fund options, an IRA is usually still the winner.

Top IRA Providers for a Rollover

If you decide an IRA is the right path, the industry standard low-cost, zero-fee frontrunners are:

• Fidelity Investments: Excellent Fidelity IRA Accounts with zero account fees, zero minimums, and great user-friendly digital tools for beginners and seasoned investors alike.
• Vanguard: Renowned for its low-cost index funds and client-owned structure, making Vanguard Rollover IRAs a favorite for long-term buy-and-hold investors.
• Charles Schwab: Outstanding customer service, robust research platforms, and zero maintenance fees or minimums on Schwab IRA Accounts.

To help narrow down the best move for you, let me know:

• Do you currently utilize (or plan to utilize) a Backdoor Roth IRA?
• How do the expense ratios and fees in your new employer's 401(k) stack up against a standard brokerage IRA?