Blog · Nov 3, 2026

Subcontractors Who Hire Other Subcontractors: Insurance Review

When your subcontractor hires another business, follow the work and the workers through the contracting chain. A certificate for the first subcontractor does not automatically answer whether the lower-tier business or its employees have the required coverage. Establish who is doing the work and which evidence supports each party’s status.

Map the chain before collecting documents

Start with the GC, the direct subcontractor and every business expected to perform delegated work. Record the scope and who employs the people on site. If the direct sub says the helpers are independent contractors, review that assertion under the relevant state rules instead of accepting the payment label as the answer.

Georgia’s Board describes potential responsibility for an uninsured subcontractor’s employees. Kansas’s subcontracting statute separately addresses a principal’s obligations and the significance of secured compensation. The precise legal analysis differs by state, so a contract requiring lower-tier insurance is useful administration rather than a universal release from liability.

Give each tier its own evidence record

For each business, collect:

1. Legal entity and relevant owners or working individuals.
2. Scope, project location and work dates.
3. Workforce statement, including employees and any further delegation.
4. Current workers compensation evidence or the specific claimed exception.
5. Required liability policies and endorsements under the applicable contract.
6. Reviewer, verification date and any approved exception.

Decide in the contract who collects lower-tier documents and who approves deficiencies. If the direct subcontractor handles collection, require a clear way to inspect the records and resolve missing evidence before the affected work begins.

Example: a three-business project

A hypothetical GC hires an HVAC subcontractor, which delegates duct installation to another company. The HVAC company supplies a compliant certificate but the duct company has not provided workers compensation evidence. The GC should not assume the first certificate settles the second company’s employees. The reviewer records the delegated scope, asks who employs the duct crew and obtains the appropriate evidence or a documented resolution. The direct subcontractor’s insurance review remains a separate record.

Recheck new tiers and changed crews

Require notice before a new business joins the project. A clean onboarding file can become incomplete if the direct sub delegates work later or a lower-tier vendor brings additional people. Include that trigger in the subcontractor onboarding checklist, and preserve the chain in the audit documentation worksheet.

For a business claiming to work alone, use the no-employees review guide. For interstate work, separately confirm the work-state coverage route.

Sources checked November 3, 2026.

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