Few questions arrive at our underwriting desk with greater frequency than this one. A self-employed professional establishes an individual 401(k), the custodian’s onboarding paperwork references a “fidelity bond,” and the owner reasonably asks whether federal law compels the purchase. The short answer is that a true solo 401(k) generally does not require an ERISA fidelity bond. The longer answer, and the one that matters, is that the exemption rests on a narrow regulatory definition, and the moment a plan ceases to satisfy that definition, the bonding obligation attaches immediately and without grace period. The purpose of this article is to explain both the exemption to the solo 401(K) ERISA bond and its limits with the precision the subject deserves.
The Statutory Bonding Requirement
Section 412 of the Employee Retirement Income Security Act of 1974, codified at 29 U.S.C. § 1112, requires that every fiduciary of an employee benefit plan, and every person who “handles” funds or other property of such a plan, be bonded.¹ The bond must equal no less than ten percent of the amount of funds handled during the preceding plan year, subject to a statutory minimum of $1,000 and a general maximum of $500,000 per plan. The Pension Protection Act of 2006 raised the ceiling to $1,000,000 for plans that hold employer securities.² The Department of Labor’s implementing regulations at 29 C.F.R. Part 2580 define who handles funds, what form the bond must take, and which sureties may issue it. The bond protects the plan itself, not the fiduciary, against loss caused by acts of fraud or dishonesty.³
The critical predicate, however, is that Section 412 applies only to plans governed by Title I of ERISA. A plan that falls outside Title I is a stranger to the bonding requirement altogether. This is where the solo 401(k) analysis begins.
Why the Owner-Only Plan Falls Outside Title I
The Department of Labor’s regulation at 29 C.F.R. § 2510.3-3 defines the term “employee benefit plan” for purposes of Title I coverage. Subsection (b) provides that the term does not include a plan under which no “employees” are participants.⁴ Subsection (c) then supplies the definitions that do the analytical work. An individual and his or her spouse who wholly own a trade or business, whether incorporated or unincorporated, are not deemed “employees” of that business.⁵ Likewise, a partner in a partnership, and the partner’s spouse, are not deemed employees of the partnership.⁶
The consequence is direct. A 401(k) plan that covers only a business owner, or an owner and spouse, or the partners of a partnership and their spouses, covers no “employees” within the meaning of the regulation. It is therefore not an “employee benefit plan” subject to Title I, and Section 412 simply never reaches it. The Department of Labor confirmed this reading in Field Assistance Bulletin 2008-04, which states plainly that plans covering only partners or a sole proprietor and spouse are not subject to ERISA’s bonding provisions.⁷ The Supreme Court’s decision in Yates v. Hendon is consistent with this framework: a working owner may participate in a Title I plan, but only where the plan also covers one or more common-law employees.⁸ The owner’s participation does not create Title I coverage; the presence of a common-law employee does.
This is the entire foundation of the exemption, and it is worth observing what the exemption does not rest upon. It does not depend on plan size. It does not depend on whether the plan files Form 5500-EZ. It does not depend on the owner’s honesty, the custodian’s preferences, or the informal understanding that “small plans don’t need bonds.” It depends exclusively on the absence of common-law employee participants. That precision matters because every element of the analysis can change.
When the Exemption Evaporates
The solo 401(k) ERISA bond exemption is not a permanent characteristic of the plan. It is a snapshot of the plan’s participant census, and three developments routinely destroy it.
First, and most obviously, the business hires a common-law employee who satisfies the plan’s eligibility conditions and enters the plan. On the date that employee becomes a participant, the plan becomes a Title I employee benefit plan, and Section 412 applies in full. There is no transition period, no de minimis allowance, and no materiality threshold. A plan with one eligible staff member is as fully subject to the bonding requirement as a plan with ten thousand.
Second, the long-term part-time employee rules have quietly narrowed the population of “safe” hires. Under Section 112 of the SECURE Act, and as accelerated by Section 125 of SECURE 2.0, an employee who completes 500 or more hours of service in two consecutive twelve-month periods must generally be permitted to make elective deferrals beginning with plan years after December 31, 2024.⁹ The owner who assumed that a part-time bookkeeper working fifteen hours per week could never trigger Title I coverage is now mistaken. Once that employee enters the plan, the owner-only characterization fails, and the bonding obligation attaches.
Third, plans holding non-qualifying assets face a compounding problem upon conversion to Title I status. The small plan audit waiver regulation conditions relief from the annual audit requirement on enhanced bonding equal to at least 100 percent of the value of non-qualifying assets, a subject we have treated at length in our analysis of the non-qualifying assets ERISA fidelity bond.¹⁰ An owner-only plan holding real estate or other assets outside a regulated financial institution can therefore move, in a single hire, from no bonding obligation to a substantially enhanced one.
The compliance failure mode is predictable. The hire occurs, the plan quietly converts, and no one revisits the bonding question until the Form 5500 preparer confronts the fidelity bond line items or a Department of Labor investigator does. Operating a Title I plan without the required bond is a violation the Department treats seriously, and it is among the most easily detected deficiencies in the entire compliance landscape because it is reported on the face of the annual return.¹¹
Practical Guidance for the Solo Plan Sponsor
For the genuinely solo plan, the owner may nonetheless elect voluntary bonding. Custodians and recordkeepers sometimes request it, and the premium for a compliant bond is modest relative to nearly any other expense the plan bears. More importantly, the sponsor who anticipates hiring should treat the bond as a condition precedent to the first employee’s plan entry. Compliant coverage on an instant-issue ERISA fidelity bond is available through ERISA-bonds.com in a single sitting, issued by A.M. Best A-rated, U.S. Treasury-listed sureties, so there is no operational excuse for a coverage gap.
A final distinction deserves emphasis because the marketplace persistently confuses it. The ERISA fidelity bond protects the plan against dishonesty. It does not protect the owner, as fiduciary, against claims alleging breach of fiduciary duty, imprudent investment selection, or administrative error. That exposure is the province of fiduciary liability coverage, which is not required by statute but which becomes a serious consideration the moment a plan covers participants other than the owner, for the simple reason that those participants acquire enforceable rights under ERISA Sections 409 and 502.¹² The prudent sponsor evaluates both instruments together, at fiduciaryliabilitycoverage.com, rather than discovering the difference after a claim.
The solo 401(k) occupies a genuine but fragile exemption from ERISA’s bonding regime. The plan that covers only an owner, an owner and spouse, or partners and their spouses stands outside Title I and owes no fidelity bond. The exemption survives exactly as long as the participant census that supports it. The disciplined answer to the question posed in our title is therefore not “no.” It is “not yet, and audit your census annually.” We don’t believe in “rolling the dice”. A solo 401(k) ERISA bond is a REALLY inexpensive way of being sure. Surety One, Inc., underwriters having issued more than 35,000 ERISA fidelity bonds since 2012, have seen the conversion scenario often enough to know that the sponsors who plan for it never regret the foresight.
~ C. Constantin Poindexter, MA, JD, CPCU, AFSB, ASLI, ARe, AINS, AIS, CPLP
Bibliography
- Employee Retirement Income Security Act of 1974 § 412, 29 U.S.C. § 1112 (2024).
- Pension Protection Act of 2006, Pub. L. No. 109-280, § 622, 120 Stat. 780 (2006) (amending ERISA § 412 to increase the maximum bond amount for plans holding employer securities).
- 29 C.F.R. Part 2580 (2024) (Temporary Bonding Rules); U.S. Department of Labor, Employee Benefits Security Administration, Protect Your Employee Benefit Plan With an ERISA Fidelity Bond (2008).
- 29 C.F.R. § 2510.3-3(b) (2024).
- 29 C.F.R. § 2510.3-3(c)(1) (2024).
- 29 C.F.R. § 2510.3-3(c)(2) (2024).
- U.S. Department of Labor, Employee Benefits Security Administration, Field Assistance Bulletin No. 2008-04, Q&A 5 (Nov. 25, 2008).
- Yates v. Hendon, 541 U.S. 1 (2004).
- Setting Every Community Up for Retirement Enhancement Act of 2019, Pub. L. No. 116-94, Div. O, § 112, 133 Stat. 3137 (2019); SECURE 2.0 Act of 2022, Pub. L. No. 117-328, Div. T, § 125, 136 Stat. 5275 (2022).
- 29 C.F.R. § 2520.104-46(b)(1)(i)(B) (2024) (audit waiver conditions for small pension plans holding non-qualifying assets).
ERISA § 502(a)(2), (a)(5), 29 U.S.C. § 1132 (2024); Form 5500, Schedule H, Line 4e; Schedule I, Line 4e (fidelity bond disclosure). - ERISA §§ 409, 502, 29 U.S.C. §§ 1109, 1132 (2024).
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