For decades, there has been a structural imbalance in how Americans invest for retirement.

Large institutional investors, pension funds, endowments, and sovereign wealth funds, have long relied on private equity, real estate, infrastructure, and other alternative assets to drive returns and manage risk. Meanwhile, the average American saving through a 401(k) plan has been largely confined to a menu of mutual funds built around public stocks and bonds.

That divide has not existed because alternative investments lack merit. It has existed because of regulation, operational complexity, and fiduciary risk.

In March 2026, the Department of Labor took a meaningful step toward closing that gap by issuing a proposed rule designed to expand access to alternative assets within 401(k) plans. The proposal, driven by Executive Order 14330, acknowledges something that many in the industry have long understood: alternative assets can improve diversification and potentially enhance long-term, risk-adjusted returns for retirement savers.

But the real significance of the rule is not simply that it allows alternatives. It is that it attempts to answer the question that has held the market back for years: how can a fiduciary include alternative investments in a 401(k) plan without taking on unacceptable legal risk?

This is a question I have been asked by plan sponsors, advisors, and individual investors for years. The fact that the Department of Labor is finally addressing it directly is worth paying attention to.

From Fear to Framework

Historically, fiduciaries have operated in an environment where the rules around alternative assets were not entirely clear. ERISA requires that fiduciaries act with care, skill, prudence, and diligence, but applying that standard to illiquid or complex investments has always been challenging. The result has been predictable: when in doubt, avoid anything that could invite scrutiny.

The Department of Labor’s proposal attempts to change that dynamic by shifting the focus away from outcomes and toward process.

In plain terms, the rule says that if you follow a thoughtful, well-documented process, your decision should be considered prudent, even if the investment itself is complex or does not ultimately outperform. That is a meaningful shift in how fiduciary responsibility is evaluated, and it opens the door to a much broader conversation about what belongs in a retirement plan.

What the Safe Harbor Actually Requires

Rather than prescribing specific investments, the safe harbor outlines how fiduciaries should evaluate any investment they consider including in a 401(k) plan.

The framework requires fiduciaries to evaluate expected performance on a risk-adjusted basis rather than simply chasing returns. They must analyze fees in the context of value, recognizing that higher-cost investments can be justified if they deliver meaningful diversification or downside protection. They must ensure sufficient liquidity for participant needs, adopt reliable valuation processes even for private assets, identify meaningful benchmarks for comparison, and fully understand the complexity of the investment or engage qualified experts who do.

When this type of disciplined, well-documented process is followed, the safe harbor provides a presumption that the fiduciary has satisfied ERISA’s duty of prudence.

The key insight here is that it is not about what you pick. It is about how you pick it. For anyone who has spent time working within ERISA, that is a genuinely significant change in emphasis.

Why This Matters for Alternative Assets

This framework directly addresses the reasons alternative investments have historically been excluded from 401(k) plans.

Private equity may involve higher fees and longer investment horizons, but it also offers the potential for enhanced long-term returns. Real estate may be less liquid, but it can provide income stability and inflation protection. Under the new framework, fiduciaries are empowered to weigh these trade-offs in a structured, defensible way rather than defaulting to exclusion out of caution.

That represents a real philosophical shift, and one that is long overdue.

What Will Actually Happen in the Short Term

Despite the flexibility the safe harbor provides, adoption will be gradual. Large employers will remain cautious, primarily due to litigation concerns. Rather than offering participants direct access to private investments, most plans will introduce alternatives through diversified vehicles such as target date funds or multi-asset funds.

A target date fund, for example, might allocate 10 to 15 percent of its portfolio to private equity or real estate. Participants gain exposure to alternative assets without needing to select or manage those investments directly, and fiduciaries can satisfy safe harbor requirements while maintaining operational simplicity.

This is the realistic near-term outcome. Meaningful progress, but measured and institutional in nature.

Why Smaller or Direct Deals Won’t Make It into Most 401(k) Plans

While the rule expands flexibility, it does not eliminate practical constraints. Smaller or localized investments, such as a single real estate deal or a fundless sponsor transaction, are unlikely to appear in most 401(k) plans. These investments often lack clear benchmarks, present liquidity challenges, and require complex valuation processes. Even if the investment itself is compelling, the fiduciary burden of analyzing and defending it under ERISA is simply too high for most plan sponsors.

There may be an emerging opportunity at the smaller plan level. Closely held businesses or community-based companies may be more willing to explore curated, local investment opportunities where the employer has deep familiarity with the asset or sponsor. A regional real estate project or a local private business investment that the employer understands well could, in certain cases, be thoughtfully incorporated into a plan.

But even for smaller plans, the same core fiduciary principles apply. The investment would still need to satisfy the safe harbor framework, meaning reasonable benchmarking, defensible valuation, appropriate liquidity considerations, and a well-documented process. Smaller plans may have more flexibility and a higher tolerance for complexity than large institutional employers, but this is not a free pass. It is an opportunity that still requires discipline.

The Reality of Litigation Risk

The safe harbor provides guidance, but it does not eliminate litigation risk. Large 401(k) plans remain prime targets for lawsuits, and even weak claims can be expensive to defend. Courts have historically allowed these cases to proceed beyond early dismissal, which creates significant pressure on employers regardless of the merits.

As a result, large companies will continue to move cautiously. Smaller companies, facing less litigation exposure, may be more willing to move forward and will likely lead the way in early adoption.

Where Self-Directed IRAs Still Stand Apart

While this rule expands access to alternatives within 401(k) plans, it does not eliminate the advantages of a Self-Directed IRA. And I want to be direct about this, because I think it is an important distinction that often gets lost in the excitement around regulatory changes like this one.

A Self-Directed IRA allows investors to directly select and control their investments, including private equity, real estate, and other non-public opportunities. It operates entirely outside the employer-driven fiduciary framework that governs 401(k) plans.

In a 401(k), the investment menu is ultimately controlled by the plan sponsor and its fiduciaries. Even with the new safe harbor, every investment must be vetted, documented, benchmarked, and defensible under ERISA. That naturally limits what can be offered and tends to favor broadly diversified, institutional-style products over specific or niche opportunities.

A Self-Directed IRA works differently. You, not your employer, are making the investment decisions. There is no plan committee deciding what is appropriate for a broad group of employees. There is no requirement to fit an investment into a standardized menu or ensure it works for thousands of participants with different needs. The IRS rules focus primarily on what is not permitted, such as prohibited transactions and certain collectibles, rather than prescribing what must be offered.

This creates a fundamentally different investment experience. If you identify a compelling private equity opportunity, a local real estate deal, or a startup investment, a Self-Directed IRA allows you to act on it directly. You are not constrained by liquidity requirements designed for daily trading, nor are you limited to investments that can be easily benchmarked against public indices.

The difference in precision matters too. In a 401(k), you may gain indirect exposure to private markets through a fund that allocates 10 to 15 percent to alternatives. In a Self-Directed IRA, you can choose to allocate a much larger portion of your retirement capital to a specific strategy or deal that you understand and believe in.

For investors who are already evaluating alternatives outside of their retirement accounts, the Self-Directed IRA is the most direct way to bring that same discipline and conviction into a tax-advantaged structure.

An Important Reminder: This Is Still a Proposal

It is worth being clear that this framework is not yet final. The Department of Labor has issued this as a proposed rule and is actively seeking input from the public, industry participants, fiduciaries, and other stakeholders. There is a 60-day comment period from the date the proposal is published in the Federal Register, and the framework we see today could evolve meaningfully before it is finalized.

Industry feedback will likely focus on how to practically implement liquidity requirements, how to define meaningful benchmarks for private assets, the extent to which the safe harbor truly mitigates litigation risk, and the operational challenges facing plan sponsors and recordkeepers. This is a collaborative process, and the final rule may look different from what has been proposed.

Progress, Not Perfection

The Department of Labor’s proposal represents a meaningful evolution in retirement policy. It reflects a growing recognition that limiting retirement investors to public markets may no longer be sufficient, and it creates a framework that allows fiduciaries to thoughtfully incorporate alternative assets into 401(k) plans.

At the same time, it does not eliminate the structural realities of plan administration. Liquidity, valuation, complexity, and litigation risk will continue to shape how alternative assets are offered. In the short term, change will be measured. In the long term, the impact could be significant.

But the most important shift may be the simplest one. The conversation has changed. The question is no longer whether alternative assets belong in retirement plans. The question is how to include them responsibly. And that is exactly what this proposal begins to answer.

For investors who do not want to wait for the 401(k) world to catch up, the Self-Directed IRA remains the most direct and flexible path available today.