Business Interruption Math — How Your BI Claim Should Actually Be Calculated

Business Income coverage (also called Business Interruption or BI) is one of the most undervalued coverages in commercial property insurance. The formula appears simple: pay the revenue your business would have earned during the restoration period, minus operating expenses that ceased. The implementation involves several discretionary inputs where carriers and policyholders consistently disagree — and where Fort Lee small and mid-size businesses routinely lose money on the BI portion of their commercial property claim claims.

The standard BI formula

Standard Business Income coverage pays: Projected Net Income During Period of Restoration + Continuing Operating Expenses + Payroll Continuation (if elected) MINUS Operating Expenses That Did Not Continue During The Suspension.

Each input is a place where carriers and policyholders disagree:

Projected Net Income. Based on trailing-twelve-month financials but should be adjusted for growth trends, seasonality, and any known business changes. A business growing 25% year-over-year should have its BI projection reflect continued growth — not held flat to trailing twelve months. Carriers routinely hold projections flat or discount them; the policyholder is entitled to growth-adjusted projection when supporting evidence exists.

Continuing Operating Expenses. Rent, debt service, insurance, property taxes, depreciation, owner draws, and other fixed costs that continue during the suspension. These should remain in the calculation as continuing expenses (they did not save the business money during closure). Carriers sometimes attempt to deduct them as "saved," which would zero out a substantial portion of legitimate recovery.

Payroll Continuation. If elected in the policy, payroll continues for ordinary employees during the suspension up to specified limits (often 90 days, sometimes 180+ days for key employees). Carriers may try to limit payroll continuation more aggressively than the policy provides.

Operating Expenses That Did Not Continue. Variable expenses that decreased or ceased during the suspension — inventory purchases (for retail/restaurant), variable utility costs, sales commissions, hourly labor not on payroll continuation. These are legitimately deductible from the BI claim, but the carrier and policyholder may disagree on which expenses fall in this bucket.

Period Of Restoration — The Timeline Question

The Period of Restoration is the time required to repair or replace damaged property with reasonable diligence. Should reflect actual reconstruction timelines including permitting, contractor availability, materials lead time, code-compliance work, and any business-specific reopening requirements (health department approval for restaurants, professional licensing for medical offices).

Carriers consistently push for shorter periods. Their methodology: immediately available contractor, first-quoted pricing, no permitting delays, no materials lead times. Reality in Fort Lee and NJ: contractor availability runs 3-6 weeks for substantial reconstruction, permitting can add 4-8 weeks, specialty materials run 8-16 weeks, code-compliance work extends timelines.

The proper Period of Restoration reflects actual reasonable reconstruction. We document the timeline through contractor bids, permit applications, materials orders, and project management records. Each documented constraint extends the BI claim by that amount of time.

Extra Expense — The Companion Coverage

Extra Expense coverage pays for costs your business incurs specifically to AVOID or MINIMIZE business interruption — costs you would not have incurred if the loss had not happened, but which you incur because they shorten the disruption or maintain partial operations during it.

Common Extra Expense items for Fort Lee commercial losses: rent of a temporary location during reconstruction, overtime payroll to maintain reduced operations, expedited shipping or premium pricing for replacement equipment, advertising to announce the temporary location to customers, technology and software costs for remote operations during the suspension.

BI and Extra Expense interact in specific ways defined in your policy. Most policies require that EE expenditures REDUCE the BI claim dollar-for-dollar (because they shortened the suspension or maintained partial revenue). The optimal mix depends on the specific policy provisions and the math of the specific loss. We model both scenarios — maximize BI vs maximize EE — and recommend whichever produces the better total recovery.

When to bring in a forensic accountant

For BI claims under $50,000, the public adjuster can typically produce the documentation directly. For BI claims $50,000-$500,000, a CPA or forensic accountant adds meaningful value through more sophisticated analysis. For BI claims over $500,000, a forensic accountant is essentially required.

Forensic accountants specializing in BI claims understand the carrier methodology, the calculation conventions in specific industries, and the documentation standards that produce defensible numbers. Their fee is typically a percentage of recovery (similar to PA contingency) or hourly. We coordinate with several forensic accountants in NJ and refer when the case justifies the engagement.