$2.1 Trillion Sits in Forgotten 401k Accounts:
how not to add yours

The most solicited moment of your financial life

Change jobs and within weeks the calls start: helpful strangers keen to assist with your "old 401k".

That isn't coincidence. A rollover is the largest movable sum most people ever control at a single moment, and an entire industry exists to catch it (The 1 Question That Explains Why Your Adviser Moves Your Money's incentives at their most concentrated). This chapter is the decision, with the sales pressure stripped out.

The four options

An old workplace plan has exactly four exits.

Leave it where it is. Legitimate if the plan's funds are cheap and good — some large plans beat anything available retail. The risk is forgetting it, which is well documented: 31.9 million forgotten accounts holding roughly $2.1 trillion.¹

Move it to your new employer's plan. Consolidation with no tax event, sensible if the new plan's options are decent, and it keeps everything inside workplace-plan protections.

Move it to an IRA. Maximum freedom of choice and everything in one place — and the option every caller is selling, because money in an IRA pays the industry fees that workplace plans often don't. Compare the actual fund charges and any advice fees against your old plan before believing that "more choice" comes free (A 1% AUM Fee Costs About $570,000 Over 25 Years, Hidden Fees on a $400,000 Balance Cost $3,800 a Year: where they are published).

Cash it out. Almost always wrong: tax, plus a penalty, plus the compounding you permanently cut off ($180,000 In, $610,000 Out: what 30 years of $500 a month does). The industry doesn't push this one only because it can't charge fees on money you've already spent.

Two mechanics matter. Insist the money moves directly between institutions rather than via a check to you — that route has a 60-day deadline and money withheld. And if the plan holds employer stock, it gets special tax treatment worth a professional's look before you move anything.

The takeaway

Changing jobs moves your biggest movable sum through a room full of salespeople. Compare all four exits on fees and fund quality — sometimes the old plan wins — insist the transfer goes directly between institutions, never cash out, and treat every helpful rollover call as what App Is Free? how it makes money from you instead taught you to see: a sale, wearing the clothes of assistance.