Paying Subcontractors in Cash? Here’s What It Does to Your Workers’ Comp Audit
5 min read · Updated June 15, 2026
There’s a persistent belief on jobsites that paying a sub in cash keeps them “off the books” and out of your workers’ comp audit. It doesn’t work the way people hope — and it often makes the audit worse. Here’s what actually happens.
Why cash isn’t invisible
A premium auditor doesn’t just take your word for your payroll — they reconcile it against hard records: bank statements, your check register, cash disbursement journals, 1099s, and your tax filings. Money that left the business to pay for labor tends to show up somewhere, and auditors are specifically trained to look for payments to subcontractors in those records.
How undocumented cash becomes your payroll
When the auditor finds payments to a sub — cash or not — the question is the same as always: can that sub document their own workers’ comp coverage or a valid exemption? If yes, fine. If the payment is just undocumented cash with no certificate behind it, the auditor can treat it as your payroll and charge premium on it at your governing class rate. Cash doesn’t avoid the charge; it just removes your evidence.
It can look worse than a check
Unexplained cash outflows invite scrutiny. If you can’t show what a cash payment was for, an auditor may assume the least favorable explanation — uninsured labor at your highest rate. Clean, documented payments to a covered sub are far cheaper than a pile of cash receipts you can’t account for.
The fix is the same regardless of how you pay
How you pay a sub — cash, check, or transfer — doesn’t change what keeps them off your audit:
- A certificate of insurance with a workers’ comp line, or a valid exemption, for the dates they worked.
- A signed contract and a 1099 supporting genuine subcontractor status.
- Records that tie each payment to a real, documented sub.
Pay how you like — just make sure every sub is documented. Check which of your subs would pass an audit, and keep the proof organized in an audit-ready binder so cash or not, you can hand the auditor evidence instead of explanations.
General information for contractors, not legal, tax, or insurance advice. Payroll and audit rules vary by state and carrier — confirm yours.
Frequently asked questions
Does paying subcontractors in cash hide them from a workers’ comp audit?
No. Auditors reconcile to bank statements, check registers, 1099s, and tax filings, so cash payments to subs typically still show up.
Will I get charged for subs I paid in cash?
If the sub can’t document their own coverage or exemption, yes — undocumented cash payments can be added to your payroll at your class rate.
How do I pay subs in cash without an audit problem?
How you pay doesn’t matter; documentation does. Keep a COI or exemption for each sub, plus a contract and 1099, and records tying every payment to a documented sub.
See your own exposure — free
Two free tools, no signup: estimate your audit surprise, and check whether your subs’ COIs actually protect you.
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