Key Takeaways:
- The average worker holds around 12 jobs over a career, and each transition tends to leave an old 401(k) behind.
- Nearly $2 trillion currently sits in forgotten retirement accounts nationally.
- Splitting savings across multiple accounts makes it hard to see your true investment risk.
- Fees on old accounts can compound unnoticed for decades, and even a few forgotten accounts can cost over $90,000 by retirement.
- Old 401(k)s can change without your knowledge, and small balances can even be moved automatically into a Safe Harbor IRA.
Multiple 401(k)s are retirement accounts left behind at former employers, and the average worker accumulates several of them over a career. The average worker holds around 12 jobs over a lifetime, and each job change is a natural point where an old 401(k) gets left behind rather than actively managed. Nearly $2 trillion currently sits in forgotten retirement accounts nationally, a direct result of a mobile workforce that changes jobs more often than it updates its retirement paperwork.
On their own, none of these accounts feel like a problem. But as they get further apart, both in time and in number, it gets harder to see the full picture of your retirement savings. Below are the six most common risks of leaving 401(k)s scattered across former employers, followed by how to bring them together.
6 Risks of Leaving Old 401(k) Accounts Behind
1. It's Easy to Lose Track of Old 401(k) Accounts
The most immediate challenge is simply keeping tabs on everything. One account might be with a provider you barely recognize anymore. Another might still belong to a company that's since been acquired, renamed, or gone out of business entirely.
Consider a fairly typical career, one with five jobs over 20 years, each with its own retirement plan. That adds up to five logins, five sets of paperwork, and five providers who all need your updated contact information every time you move. Miss one, and that account can drift out of view entirely.
With nearly $2 trillion currently sitting in forgotten retirement accounts nationally, this is a common outcome of a mobile workforce. Old passwords get lost, statements stop getting opened, and mailing addresses change without anyone updating the old provider. What started as "I'll deal with this later" quietly turns into an account nobody's actively managing.
2. Multiple Accounts Blur Your Investment Strategy
When your savings are split across several accounts, it's difficult to see the big picture. One 401(k) might be sitting in cautious, low-risk investments, while another is parked in high-growth, higher-risk funds you selected a decade ago and never revisited. Without a single view of everything, it's easy to end up either more exposed to risk than you realize, or more conservative than makes sense for your timeline.
Keeping your investments on track becomes a chore instead of a habit. What should be a quick check-in can turn into logging into three or four different platforms, each with its own fees, just to piece together where you actually stand.
3. Multiple 401(k) Fees Quietly Add Up Over Time
Every 401(k) plan comes with its own fee structure, and many of these charges aren't obvious from a quick glance at a statement. 401(k) fees generally fall into four categories:
- Plan administration fees. Costs for running the plan, like recordkeeping and customer support, which may be charged directly to your account.
- Investment fees. Ongoing fees built into your funds, such as expense ratios, that can reduce your returns over time.
- Individual service fees. Charges for optional features, like taking a loan or requesting certain transactions.
- Former employee fees. Account maintenance fees that may apply only after you leave your employer.
A fee that looks small on one account becomes a bigger drag when it's multiplied across several forgotten accounts, each quietly chipping away at your balance year after year. Americans who leave behind just a handful of accounts early in their careers can lose out on over $90,000 by the time they retire, largely due to fees and missed growth on money that isn't being actively managed. Multiple accounts also mean multiple opportunities for those costs to compound, unnoticed, over decades.
