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How Much ERISA Bond Coverage Does Your 401(k) Plan Need?

Published 2026-04-29 · By Joe Baxter, Licensed Insurance Agent · 5 min read

If you manage a 401(k) plan, federal law requires you to carry an ERISA fidelity bond. The amount isn't arbitrary—it's calculated based on your plan assets, and getting it wrong can cost you during a Department of Labor audit. Here's exactly how to determine your required coverage amount.

The 10% Rule: Base Calculation for ERISA Bond Coverage

The Employee Retirement Income Security Act requires every person who handles plan funds or property to be bonded for at least 10% of the plan assets they handle. You calculate this percentage using the total plan assets as of the beginning of the plan year—not the current balance or year-end figures.

This means if your 401(k) plan held $2 million in assets on January 1, your required bond coverage is $200,000 for that plan year. If assets grew to $2.5 million by June, you don't need to increase coverage mid-year. You recalculate at the next plan year start.

The bond must cover all persons who handle plan funds or property, which typically includes plan trustees, administrators, officers, and employees who have access to move or authorize movement of plan assets. This isn't just about theft by strangers—it protects against fraud or dishonesty by anyone in a position of trust.

Minimum and Maximum Coverage Limits

Federal regulations set hard floors and ceilings on ERISA bond coverage amounts. The minimum bond you can carry is $1,000, even if 10% of your plan assets calculates to less. This affects very small plans in their early stages—if you have a new 401(k) with only $5,000 in assets, you still need at least $1,000 in coverage.

The standard maximum is $500,000. Once your plan assets exceed $5 million, the 10% calculation would push you over this cap, but you're not required to exceed it. A plan with $10 million in assets needs only $500,000 in coverage, not $1 million.

However, if your plan holds employer securities—meaning company stock—the maximum increases to $1 million. This higher cap recognizes the additional risk involved when retirement plan assets are concentrated in a single company's equity. If you hold any amount of employer securities, even a small percentage, you're eligible for the higher maximum.

When to Increase Your Bond Coverage

You're required to review and adjust your bond coverage at the start of each plan year based on the asset level at that time. Many plan sponsors miss this requirement and operate with outdated coverage that no longer meets the 10% threshold.

If your plan assets have grown significantly—say from $1 million to $3 million over two years—and you're still carrying the original $100,000 bond, you're out of compliance. Your current coverage should be $300,000. Department of Labor auditors specifically check for this discrepancy.

You don't need to increase coverage during the plan year if assets grow, but you also can't wait years between reviews. Best practice: calendar a reminder each year before your plan year begins to calculate required coverage and contact your bond provider if an increase is needed. Some plan sponsors tie this review to their annual Form 5500 filing process.

What ERISA Bond Coverage Actually Protects

An ERISA fidelity bond specifically protects the plan—not the plan sponsor or company—against losses caused by fraud or dishonesty of covered persons. This includes theft, embezzlement, forgery, misappropriation, or wrongful abstraction of plan funds or property.

The bond does NOT cover investment losses, poor financial decisions, market downturns, or honest mistakes. If your plan administrator makes a bad investment call that loses money, the bond doesn't respond. It only covers intentional dishonest acts or fraud.

This is why ERISA bonds are different from fiduciary liability insurance. The bond protects plan assets from theft-type losses. Fiduciary liability insurance protects plan sponsors from lawsuits alleging breach of fiduciary duty. You typically need both, but they serve entirely different purposes and the ERISA bond is the legally mandated one.

Multiple Plans and Coverage Requirements

If you sponsor multiple retirement plans—say a 401(k) and a profit-sharing plan—you need to calculate the 10% requirement separately for each plan and ensure your bond covers the total. You can use a single bond policy to cover multiple plans, but the coverage amount must be sufficient for the combined requirement.

For example: Plan A has $3 million in assets (requires $300,000) and Plan B has $1 million (requires $100,000). Your total required coverage is $400,000. You can have one bond policy for $400,000 that names both plans, rather than separate policies.

Some employers work with multiple entities or subsidiaries that each sponsor plans. In these cases, you need to ensure each plan's assets are properly covered under the appropriate bond. The legal entity structure matters—plans sponsored by different legal entities may not be covered under a single bond unless specifically structured that way.

Cost and Where to Get Your ERISA Bond

ERISA bond premiums are typically affordable relative to other business insurance—often a few hundred dollars annually for small to mid-sized plans. The cost is based on the coverage amount you need, not your actual plan assets. A $100,000 bond costs the same whether your plan has exactly $1 million or $1.5 million in assets.

Your bond must be issued by a surety or reinsurer acceptable to the Department of Labor, which means it must appear on the Treasury Department's list of approved sureties. Not all insurance companies qualify. Working with a licensed surety bond agency ensures your bond meets federal requirements.

Most plan sponsors purchase ERISA bonds through insurance brokers, surety bond agencies, or directly from carriers specializing in employee benefit plan coverage. We quote and issue ERISA fidelity bonds for plans of all sizes, and can typically provide coverage within 1-2 business days once we know your required coverage amount and plan details.

Frequently Asked Questions