For decades, the assets inside a typical 401(k) were straightforward: public stocks, public bonds, and a money market fund. That boundary is now being redrawn. A Labor Department rule proposed on March 30, 2026 would give plan fiduciaries a formal safe harbor for adding private equity, private credit, and real estate to workplace plans — and major asset managers are already building the products.
What the Proposed Rule Does
The rule follows an August 7, 2025 executive order, "Democratizing Access to Alternative Assets for 401(k) Investors." The Labor Department rescinded its cautionary 2021 private equity guidance five days after that order.
The proposal itself is narrower than the headlines suggest. It creates a process-based safe harbor for selecting any designated investment alternative, requiring fiduciaries to document their consideration of six factors: performance, fees, liquidity, valuation, performance benchmarks, and complexity.
Two points matter for savers. First, the rule is asset-neutral — it does not require, prefer, or restrict any asset class. It lowers litigation risk for fiduciaries who follow the process; it does not bless private equity as such. Second, it is not final. The comment period closed June 1, 2026, and a final rule may not arrive until late 2026. The DOL has not set an applicability date.
The Fee Debate Is Unresolved
Most exposure will arrive indirectly, through target-date funds and collective investment trusts rather than a fund you pick off a menu. Asset managers including BlackRock have prepared target-date funds carrying 5%–20% private allocations.
The projected benefit and the projected cost differ sharply by source:
- Vanguard models a 10%–20% private sleeve as potentially increasing cumulative retirement wealth by 7%–22% over 40 years, net of fees — while noting all-in private fees of 150–300+ basis points versus 10–50 for public assets.
- Critics, including analysts at 401(k) Specialist, argue layered private equity fees approach 6% annually against 0.03%–0.05% for index funds, and that a 15% sleeve adds roughly 0.90% of annual drag to the whole fund.
Both sides agree on the structural cautions: private assets are appraisal-priced rather than market-priced, which understates reported volatility; returns show wide dispersion, so results depend on accessing above-median managers; and there is no low-cost passive option. Vanguard also flags that gating and redemption limits can restrict access during stress.
The Supreme Court Wild Card
Separately, the Supreme Court granted certiorari in Anderson v. Intel Corp. Investment Policy Committee (No. 25-498) on January 16, 2026, with argument set for the October 2026 term. The underlying claim is that Intel's plan fiduciaries acted imprudently by including options with hedge fund and private equity exposure. The Court will decide whether participants alleging underperformance must plead a "meaningful benchmark" to survive dismissal — which will shape how easily these allocations can be challenged.
Practical Takeaways
- Read your target-date fund's fact sheet, not just its name. A private sleeve can be added without renaming the fund.
- Watch your annual 404(a)(5) fee disclosure. Compare this year's expense ratio to last year's; that is where added cost appears.
- Note the vehicle. Collective investment trusts disclose less than mutual funds, so ask your plan administrator directly for holdings.
- Distinguish diversification from complexity. Investors already seeking non-correlated assets can access many of them through a self-directed IRA with transparent pricing and no lockup mismatch.
- Nothing requires action today. The rule is not final, and no plan is obligated to adopt these options.
Sources: U.S. Department of Labor (EBSA release, March 30, 2026); Gibson Dunn; Morgan Lewis; Vanguard, Private assets in target-date funds: A balanced assessment; 401(k) Specialist; SCOTUSblog; DLA Piper.