The 401(k): America’s retirement savings engine

two adults and two children

National 401(k) Day was celebrated earlier this month, offering a great reminder of the tool that quietly builds wealth in the background every time you get paid. The US retirement system is the global gold standard, and the 401(k) is its foundation: 

  • 70% of US households, or 94.4 million, own a defined contribution plan or an IRA. 
  • 401(k)s serve 70 million active participants alongside millions of retirees. 
  • Those accounts hold more than $32 trillion in total assets. 

Beyond those numbers, the true strength of the system lies in what it does for everyday workers. 

A saving engine that works for everyone 

For millions of Americans, workplace plans aren't just an optional benefit—they are the primary engine driving their financial future: 

  • Automated discipline: Recent nationwide survey data shows that nearly half of all 401(k) participants say they probably wouldn't save for retirement at all without access to a plan at work.  
  • Volatility protection: More than 80% of retirement savers report that regular paycheck-by-paycheck contributions reduce their anxiety about short-term market swings.  

Employer matches help with compounding returns 

The wealth-building power of a 401(k) extends far beyond individual savings. More employers than ever are funding their workers' plans through matching and non-elective contributions: 

  • High Employer Participation: In 2023, 91% of large 401(k) plans offered employer contributions, covering 94% of participants. 
  • Employers Invest Billions: Employer contributions totaled $181 billion in 2023 alone representing about 35% of all money flowing into large plans. 

Contributing enough to capture your full employer match can potentially lead to compounding returns over your entire career. 

Broader choices 

Modern 401(k) plans offer expanded investment options at a steadily declining cost: 

  • Diverse lineups: Large plans offer an average of 29 investment options, giving individual savers access to high-quality funds. 
  • Falling fees: Total plan costs for large accounts dropped from 1.02% of assets in 2009 down to 0.74% in 2023, with significant cost reductions extending to smaller plans as well. 
  • Target Date Funds (TDFs): TDFs provide a professionally managed, "set-it-and-forget-it" portfolio that automatically rebalances to become more conservative as you near retirement.  

Real results for retirement security 

This combination of automated savings, employer matches, and low-cost investing can offer real financial security.  

Public support for the system is clear: 87% of Americans oppose eliminating tax advantages for retirement accounts, and 79% stand against government control of their assets. 

Even though National 401(k) Day has passed, it is always a great time to log into your account, review your contribution rate, and make sure you are getting the full benefit of your workplace plan.