$10 Trillion About to Enter Crypto? US Eases 401(k) Rules

The new 401(k) rules just changed the game for crypto and retirement savings.

On March 30, 2026, the US Department of Labor released a long-awaited proposed rule that could open American retirement accounts to private equity and cryptocurrencies. There is roughly $10 trillion sitting in these accounts. Even a small slice moving into digital assets would move markets worldwide.

What Exactly Changed in the 401(k) Rules?

For years, employers stayed away from crypto in retirement plans. The legal risk was too high. One wrong move and plan trustees faced lawsuits from members claiming imprudent decisions.

The new proposal directly addresses that. Trustees who follow the outlined process get safe harbor protection from lawsuits. The Supreme Court is actually hearing one such case right now, filed back in 2019 by a former Intel employee who claimed trustees acted imprudently by investing in hedge funds and private equity.

Treasury Secretary Scott Bessent called the proposed rule “an initial step” while stressing the importance of protecting retirement assets. The Labor Department was equally measured, saying: “We’re giving them the toolkit so that they can follow an analytical, thorough, and objective process.”

Also Read: U.S. House Clears Key Hurdle on Crypto Bills, Marking Big Win for Digital Asset Sector

How Do the Updated 401(k) Rules Actually Work?

The rule does not simply wave crypto into retirement menus. Trustees must “objectively, thoroughly, and analytically consider” factors, including performance, fees, liquidity, valuation, performance benchmarks, and complexity, before adding any alternative asset.

So employers cannot just list Bitcoin and move on. They document the process, do the analysis, and prove they acted in members’ best interests under ERISA. The 401(k) rules create a framework, not a free pass.

The Department of Labor will open a 60-day comment period before deciding whether to finalize the rule. Nothing is locked in yet.

Who Benefits From These 401(k) Rules?

The big alternative asset managers are already celebrating. Blackstone, KKR, and Apollo Global Management all saw their shares rise following the announcement. Apollo CEO Marc Rowan said the proposed rule “can meaningfully improve retirement outcomes” and called the executive order “a thoughtful step toward addressing the growing retirement crisis.”

BlackRock, which counts more than half of its $14 trillion in assets under management as retirement-linked, also welcomed the move.

SEC Chair Paul Atkins added that allowing Americans to “participate more fully in innovation and economic growth through well-diversified long-term investments” is a priority for effective retirement planning.

Also Read: GENIUS Act: What You Should Know About the New U.S. Crypto Regulation Bill

Will Crypto Actually Flow Into 401(k) Plans?

Probably not overnight. Erin Cho, a partner at law firm Mayer Brown, was direct about it: the rule “will not open the floodgates for private equity, private credit or crypto funds to move into the retirement space,” but only provide a process.

That is the honest read. The 401(k) rules shift the regulatory framework. Employers who avoided crypto for years still need time, internal processes, and board-level decisions before changing anything.

The Critics Have Real Points Too

Senator Elizabeth Warren criticised the proposal, warning it exposes retirement plans to risky assets at a time when prices are already falling, and cracks are appearing in private markets.

Those concerns have weight. Some private credit funds known as business development companies have already seen a wave of withdrawals recently.

Henry Hu, professor of finance at the University of Texas at Austin’s School of Law, welcomed the rule’s depth, which spans over 160 pages, but said the authors should have spent more time addressing “recent market problems with valuations and liquidity.”

John Toomey, CEO of the $147 billion private equity firm HarbourVest, framed it simply: “It’s all really about: did you follow the right process? Did you have the right information? Did you take the decision with the interests of the individuals front and center?”

That is ultimately what the updated 401(k) rules are asking trustees to prove.

Also Read: U.S. Crypto Reforms Spark Growing Interest from UAE Investors

Can I put crypto in my 401(k) right now? 

Not through most plans yet. The proposed 401(k) rules are in a 60-day comment period. Until it is finalised and adopted by your plan provider, most workers cannot access crypto through employer plans.

Does this affect investors outside the US? 

The rule applies to US employer plans under ERISA. But any large capital inflow into crypto from American retirement funds will impact global markets.

Which companies benefit the most? 

Blackstone, KKR, Apollo, and BlackRock are best positioned. Their shares already moved higher following the announcement.

What happens after the comment period? 

The Labor Department reviews feedback, may revise the rule, and then decides whether to finalise it. Legal challenges are possible either way.

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Disclaimer:

Look, we’re just journalists reporting the news here, not your financial advisors. Everything you read above is for information purposes only. Crypto is wild, unpredictable, and can absolutely wreck your savings if you’re not careful. Never invest money you can’t afford to lose. Seriously, we mean it. Do your own research, talk to actual licensed financial professionals, and remember that past performance means absolutely nothing when it comes to future results. The crypto market can turn on a dime, and what’s hot today might be toast tomorrow. We’re not responsible for your investment decisions, good or bad. Trade smart, stay safe, and don’t bet the farm on anything you read on the internet, including this article.