I have a traditional 401(k) through my previous employer. I was planning to roll it into a traditional IRA at Vanguard for lower fees and more investment choices, but is there any reason to leave it as a 401(k)? Do 401(k)s have any benefits over IRAs?
One reason might be that your 401K is more protected than an IRA is if you were to be sued.
I believe that to be true but I’m not a lawyer.
Yes, in some states, 401(k) plans are treated better than IRAs in bankruptcy.
Another reason is if you think you might ever be above the contribution limits for a Roth IRA, and will have to use the Back-Door Roth method. But you can also roll the existing 401(k) or traditional IRA into a new employer’s 401(k) plan, if the new employer allows it (I suspect most do).
I’d lean toward rolling into a 401(k) at your new employer if possible, and if the new plan is decent.
401k plans are under ERISA. The Bankruptcy Abuse Prevention and Consumer Protection Act (BAPCPA) of 2005 gives federal protection to IRAs up to $1 million (though money rolled over from an ERISA-qualified plan into an individual account may not be subject to these limits).
Here is a link with more information: Are my Retirement Accounts Protected from Creditors? | Equifax).