For nearly 50 years, the 401(k) has been the backbone of retirement savings in the U.S., gradually replacing traditional pensions. But only recently has it reached a major milestone—half of private-sector workers are actively contributing to a plan.
While many workplaces have offered 401(k)s for years, widespread participation lagged. A decade ago, only 60% of private-sector employees had access to a retirement plan, and just 43% contributed. Now, recent efforts to increase participation have paid off.
What’s Driving the Growth?
Several factors have pushed 401(k) participation to new highs:
- State and Federal Policies: More states now require employers to offer retirement savings options, and Congress has introduced tax incentives to encourage small businesses to launch plans.
- Automatic Enrollment: Many companies now enroll employees by default, significantly increasing participation. The provisions of the SECURE Act with effective dates in 2024 and 2025 broadened these auto-enrollment requirements.
- More Small Businesses Offering Plans: Historically, small businesses struggled to provide 401(k)s due to high costs and administrative burdens. But competition for talent, tax credits, and low-cost plan providers have made it easier.
What Can Employees with a 401(k) Do?
If you have a 401(k), there is likely matching at some level. If cash-flow allows, it is recommended that employees contribute at least enough to receive the match into their 401(k). The contributions can be made either pre-tax or into a Roth and now some plans may allow for matching contributions to Roth accounts.
The maximum employee deferral for 2025 is $23,500 (with additional amounts allowed as catch-up contribution for those over age 50). For those looking to save more than this amount, some 401(k) plans allow for non-Roth, post-tax contributions above normal deferrals and employer matching, up to an overall limit of all plan contributions of $70,000. Your HR or retirement plan provider can explain available options if you want to maximize contributions to your retirement savings.