Some commercial policies begin with estimated payroll, sales, or another exposure measure and reconcile that estimate after the policy term. The premium audit determines the final exposure and may produce an additional charge or return premium.
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Some commercial policies begin with estimated payroll, sales, or another exposure measure and reconcile that estimate after the policy term. The premium audit determines the final exposure and may produce an additional charge or return premium.
Important: This guide provides general educational information, not legal, tax, or insurance advice. Requirements and policy terms vary. Consult a licensed professional about your situation.
Reconcile an audit charge without treating payroll growth as a rate increase
Illustrative single-class calculation: a policy starts with $200,000 estimated payroll and an assumed $2 rate per $100 of payroll. Actual payroll is $250,000. These figures are invented and exclude modifiers, minimum premiums, fees and other adjustments.
The estimated amount is 2,000 payroll units × $2 = $4,000. The audited amount is 2,500 units × $2 = $5,000. The $1,000 difference comes entirely from exposure in this example; the rate did not change. Multiple classifications require separate rows before totals are added.
Compare the auditor's payroll totals with records for the exact policy period. Calendar-year tax reports can cover different dates. Prepare a reconciliation explaining the difference instead of simply attaching a report with a different total. Keep overtime and subcontractor records available, but do not subtract categories unless the applicable rules permit it.
If an amount is disputed, ask for the worksheet, classification explanation and dispute deadline. Identify the particular row and supporting record. Do not assume that disputing an audit suspends payment obligations; obtain instructions from the insurer. This process produces a reviewable discrepancy rather than an unsupported objection to the bill.
Questions to take to your provider
- Which dates and payroll categories produced this total?
- Which rule explains the disputed classification or subcontractor treatment?
- What are the dispute deadline and payment instructions?
Keep this decision record
Audit reconciliation: classification | estimated exposure | actual exposure | rate basis | source record | disputed difference.
This is an original teaching scenario, not a real customer case, a market-price estimate or a coverage determination. Numerical assumptions are stated explicitly.
Background reference: Travelers: records and policy-period documentation for premium audits. Accessed September 11, 2026; the scenario itself is our illustration, not the source’s case history.
Why audits happen
An estimated premium allows coverage to begin before the year’s final figures exist. At audit, the insurer applies policy rules and classifications to actual records. The process is common in workers’ compensation and may appear in liability policies.
Records to organize
Follow the auditor’s request and retain supporting records. Typical items can include payroll summaries, tax reports, general ledgers, sales records, certificates of insurance, subcontractor payments, job descriptions, and operations by location.
- Payroll by employee, duty, and state
- Overtime records where applicable
- Subcontractor payments and certificates
- Sales or revenue by operation
- Changes in ownership or services
Review the completed audit
Compare classifications, exposure totals, officer treatment, subcontractor handling, locations, and policy rates with your records. Ask for the audit worksheet and dispute instructions if something appears incorrect. Respond by the stated deadline and preserve documentation.
Prepare while the policy is active
The easiest premium audit is the one supported month by month. Keep payroll by employee and duty, subcontractor payments with certificates, sales by operation, and changes in ownership or location. Waiting until the audit request arrives often means reconstructing classifications from bank records and memory.
Compare actual exposure with the estimate during the year. If payroll or sales grows sharply, ask whether the policy can be endorsed. Paying part of the increase during the term may be easier than receiving one large final invoice.
Review the worksheet, not just the balance
An additional premium is not proof of an error, and a return premium is not proof the audit is correct. Request the worksheet and trace exposure totals, classifications, rates, officer treatment, and subcontractor charges back to records. Note where estimates or auditor assumptions were used.
If something appears wrong, follow the policy's dispute process and deadline. State the disputed item precisely and attach organized evidence. Keep paying undisputed amounts as professional advice recommends; ignoring correspondence can limit options.
Audit file checklist
Keep a copy of exactly what was supplied and how totals were calculated.
- Quarterly payroll reports and detailed ledgers
- Employee duties and work states
- Overtime detail where applicable
- Subcontractor invoices, contracts, and certificates
- Sales by operation and location
- Prior audit, current worksheet, and written correspondence
Reconcile exposure and organize records
Calculate the variance between estimated and actual exposure, then print a missing-document and auditor-question list.
Open the worksheetSources and further reading
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Research reviewed on August 2, 2026. Prices and requirements can change; this page does not provide a quote.