Why 401 (k) Plan Compliance Now Requires Annual Valuations

More retirement plans now include private equity and other illiquid assets that don’t have a public price. When that happens, employers are required under ERISA to obtain an independent valuation every year — something many don’t realize until a plan administrator or Form 5500 preparer asks for support. Because tax forms like K-1s don’t satisfy IRS or DOL fair market value requirements, plan sponsors must provide defensible valuation documentation. This article explains why these assets are becoming more common, what the annual valuation requirement involves, the risks of missing it, and how the right valuation partner can help keep plans compliant.

Over the last few years, regulators have quietly opened the door for retirement plans — including 401(k)s, profit-sharing plans, IRAs, and self-directed accounts — to hold private equity and other illiquid alternative investments. For investors, this creates new opportunities: broader diversification, access to private markets, and exposure to assets that were traditionally off-limits in retirement savings.

But with that opportunity comes a new layer of responsibility.

When retirement accounts hold private or illiquid assets, the plan sponsor is now expected to report their fair market value under the Employee Retirement Income Security Act of 1974 (ERISA) and Department of Labor requirements. That means businesses—not fund managers, custodians, or platforms—often become responsible for providing independent valuations of assets they may not directly control.

The challenge is that most companies don’t realize this obligation exists until the third-party administration plan team asks for documentation or year-end reporting deadlines appear. By then, the pressure is already on.

Why Private Equity and Illiquid Investments Are Showing Up in Retirement Plans Now

Retirement plans are changing — quietly, but significantly. As more employees use self-directed accounts and alternative investment platforms, it’s becoming increasingly common to see nontraditional assets in 401(k) plans, including private equity, venture funds, operating partnerships, and other illiquid holdings.

Part of this shift stems from the Department of Labor’s evolving guidance on allowing limited exposure to private investments inside diversified, professionally managed defined-contribution portfolios. At the same time, small business owners are using their retirement dollars to invest directly into private companies, blurring the line between participant and investor.

Another driver is the rise of “sidecar” investing — situations where employees commit capital to a company’s affiliate, spinout, or fund — bringing new ERISA fiduciary duties into focus as plan sponsors try to keep pace with increasingly complex portfolios.

The result is simple but consequential: as private markets expand, retirement accounts now routinely hold assets that can’t be valued without an expert. And with annual valuation reporting requirements under ERISA tied to these holdings, employers often discover they must provide defensible, third-party valuations long before they feel prepared for that responsibility.

ERISA’s Rule: Illiquid Assets Must Be Independently Valued Every Year

ERISA has a simple expectation that creates a very real burden: every illiquid or non-public investment inside a retirement plan must be valued at fair market value each year. This applies whether the asset is a private company, a fund interest, a real estate LLC, or any other security that doesn’t have a public market.

For many business owners, this obligation only surfaces when a plan administrator asks for valuation support in conjunction with a Form 5500 filing which could cause a hold up in submitting the filing. But annual valuation reporting requirements under ERISA make this a standing fiduciary duty — not an optional exercise.

Here’s what ERISA actually requires:

  • Annual fair market value reporting for all retirement plan assets, including private equity and other illiquid securities.
  • Substantiated values for Form 5500 / Schedule H — not estimates or internal assumptions.
  • Auditor verification, meaning auditors must obtain independent evidence or issue a qualified opinion.

This becomes challenging because illiquid assets don’t behave like publicly traded securities. There’s no ticker symbol, no daily pricing, and no observable market data. Without that transparency, the value can’t be “looked up” — it must be determined through a defensible valuation process.

A common misconception makes things worse: many plan sponsors assume a partnership K-1 can stand in as valuation support. It can’t. A K-1 reports taxable income, not enterprise value, and the Department of Labor has been explicit that tax filings are not acceptable substitutes for a fair market valuation.

When these requirements are overlooked, the consequences escalate quickly. Plan audits get delayed or fail outright. Fiduciaries face heightened scrutiny around ERISA compliance. Sponsors risk breach claims. And in the worst cases, participants challenge the accuracy of their account statements.

If a retirement plan holds private or illiquid assets, someone must provide a defensible valuation. In most companies, that responsibility falls on the business owner, whether they realize it or not.

Not sure if your plan’s assets need a valuation?
Schedule your free consultation with Sofer® Advisors today.

The Private Assets That Turn Retirement Plans Into Compliance Risks

As private markets seep into retirement plans, more employers are discovering — often too late — that certain assets automatically trigger annual valuation requirements under ERISA. The rule applies regardless of who selected the investment, who manages it, or how much information the company actually receives.

Valuations are required any time a retirement plan holds illiquid or non-public assets, including:

  • Private equity fund interests
  • Venture capital fund units
  • LP or LLC operating interests, including minority or passive positions
  • Closely held business stock
  • Real estate partnerships and private REIT-style structures
  • Direct private investments inside self-directed IRAs
  • Employer-affiliated entities or sidecar investments
  • Special situations such as structured notes, convertible units, SAFEs, preferred units, or warrants

The tricky part? Many plan sponsors don’t realize they’re responsible for valuing assets they don’t control, didn’t select, and may receive almost no financial information about. A single line on a participant statement — “Alternative Investment – $250,000” — can translate into a full fair market valuation requirement at year-end.

And without a proper valuation, neither the plan administrator nor the Form 5500 reviewer can sign off, putting the entire plan’s ERISA compliance at risk which could also lead to unnecessary filing delays.

The Compliance Burden No One Sees Coming

Even when the rule is clear, the execution is anything but. Most companies discover the valuation requirement only after a plan administrator or an auditor flags it — and by then, the clock is ticking and the information gap is obvious.

The core problem is simple: plan sponsors are legally responsible for valuing assets they often don’t control, don’t manage, and don’t have adequate financial data for. That creates a compliance burden that escalates quickly.

Here’s why:

  • Data is minimal or nonexistent. Many sponsors receive nothing more than a K-1 or a partner statement — neither of which provides fair market value for ERISA reporting.
  • There’s no valuation expertise in-house. Most finance teams are not equipped to model private equity, venture structures, capital waterfalls, or other illiquid securities.
  • Plan Administrators and Auditors require independence. Internal estimates or management assumptions won’t satisfy ERISA audit standards; plan administrators and auditors need third-party evidence.
  • Deadlines are brutally compressed. Year-end reporting, Form 5500 preparation, and audit cycles collide, leaving little time to resolve valuation gaps.
  • Structures are opaque. PE funds, venture vehicles, real estate LPs, SPVs, and hybrid securities often involve layered terms that need specialized interpretation.
  • Regulatory scrutiny is increasing. When assumptions are undocumented — or when sponsors rely on tax documents like K-1s — the risk of DOL or auditor challenge rises sharply.

All of this creates a perfect storm: the plan sponsor is responsible for a valuation they aren’t equipped to produce, under deadlines they didn’t set, for assets they have little visibility into.

How Sofer® Advisors Solves the ERISA Valuation Problem

The challenge with ERISA isn’t just the rule itself; it’s the combination of missing data, compressed deadlines, and increasing scrutiny from auditors and the Department of Labor. Sofer® Advisors steps in where most plan sponsors feel stuck, delivering valuations that hold up under review and relieve internal teams of a responsibility they were never equipped to manage.

ERISA-Compliant Valuations, Even With Minimal Data

Many companies come to us with little more than a K-1 or a partner statement. That’s still enough for us to begin. We apply defensible valuation methodologies — not tax allocations and not book values — to establish fair market value in a way administrators, auditors and regulators will accept for ERISA reporting.

Extensive Expertise in Illiquid, Hard-to-Value Assets

Private equity and venture interests, LP units, employer-affiliated entities, private shares, SPVs, real estate LLCs, and other hybrid securities all fall squarely within our wheelhouse. These structures often sit deep inside self-directed retirement accounts, and we understand how they behave — and how they must be valued — under ERISA.

Independent, Auditor-Ready Deliverables

Every valuation is designed to withstand a full audit trail. Our reports support:

  • Form 5500 / Schedule H reporting
  • Plan audits requiring independent evidence
  • DOL inquiries
  • Fiduciary protection for plan sponsors and administrators

Year-Round Support for Triggering Events

Valuation needs don’t stop at year-end. We support plans during:

  • Distributions or participant redemptions
  • Plan terminations
  • Corporate transitions, restructurings, or M&A
  • Liquidity events inside funds or private companies

Education for Business Owners, CPAs, and Plan Administrators

Most sponsors aren’t taught what ERISA actually requires. We help them understand what must be valued, how to document it, and why independence matters for IRS and DOL compliance — not just for audit sign-off.

Our role is simple: turn a complex ERISA obligation into a clean, defensible valuation process that keeps filings on schedule and protects fiduciaries from unnecessary risk.

How to Get Your Plan Ready Before Audits Begin

Before year-end filings tighten and auditors begin requesting documentation, plan sponsors should take a proactive look at their exposure. Start by identifying any private equity, LP interests, employer-affiliated investments, or other illiquid assets held inside the retirement plan. Then confirm whether those assets have been independently valued within the past 12 months, and whether the existing documentation meets ERISA’s fair market value standard.

If not, the next step is assessing compliance readiness: could you substantiate these values during a plan audit or as part of your Form 5500 / Schedule H filing? Plans with illiquid assets are almost always asked for proof of value, and auditors must obtain independent evidence to sign off.

Getting ahead of the cycle is essential. Early preparation gives you time to gather documents, address missing information, and schedule valuations before deadlines create unnecessary pressure. Bringing in an independent valuation partner before auditors begin their review is the most reliable way to eliminate last-minute fire drills and keep the plan compliant.


Frequently Asked Questions About Annual Valuations and Retirement Plan Compliance

  1. Do I really need an independent valuation if my retirement plan holds private equity or a private company investment?
    Yes. ERISA requires annual fair market value reporting for any non-public or illiquid asset inside a retirement plan — even if the position is small, passive, or held through a self-directed account.
  2. Can I use my K-1 or partnership statement as proof of value for my 401(k) or profit-sharing plan?
    No. A K-1 reports taxable income, not fair market value. Administrators, Auditors and the Department of Labor require independent valuation support and will not accept tax forms as substitutes.
  3. What happens if I don’t provide a valuation for a private investment in my company’s retirement plan?
    Audits can be delayed or fail, Form 5500 filings may be held up, and plan sponsors may face compliance findings or fiduciary exposure. Missing valuations almost always causes last-minute issues.
  4. How do I get an accurate valuation if I don’t have much financial information about the private investment?
    Independent valuation firms can determine fair market value using accepted methodologies even with limited data. This is exactly what valuations are designed to address when sponsors do not control or manage the underlying investment.

Private Equity in Retirement Accounts Isn’t Going Away, But the Compliance Burden Doesn’t Have to Stay With You

Private markets are now part of the retirement landscape, and that trend isn’t reversing. As long as illiquid assets appear in 401(k)s, profit-sharing plans, and self-directed accounts, ERISA will continue to require annual fair market valuations. The challenge is that most organizations aren’t prepared for the level of documentation, independence, and defensibility these IRS and DOL rules demand.

The good news: you don’t have to manage that complexity alone. With the right valuation partner, you can reduce both the burden and the risk — keeping your plan compliant without scrambling at year-end.

If your retirement plan holds private assets and you want clarity before filings and audits begin, connect with Sofer® Advisors to get ahead of the requirements before an audit puts your plan under a microscope.