Business income and business interruption, explained

Business income coverage reimburses the net income the business would have earned, plus continuing normal operating expenses — including payroll for employees the business chooses to keep on staff — that it must keep paying even though operations have stopped or slowed because of a covered property loss. It responds to the income the business lost, not to the cost of the physical repair itself, which is handled separately under building or contents coverage.

Extra expense coverage reimburses the additional, reasonable costs the business incurs specifically to keep operating, or to reduce the business income loss, during the period of restoration — a temporary location, rented equipment, expedited repairs, or overtime labor to reopen sooner. Many commercial policies combine business income and extra expense into a single coverage part, since the two are usually evaluated together: extra expense is often justified precisely because it reduces the business income loss it would otherwise cause.

The period of restoration is the window the business income calculation covers: it begins at the date of the covered physical loss and ends on the date the property reasonably should be repaired, rebuilt, or replaced, with reasonable speed, and operations resumed — not the date the business actually reopens if that is delayed by factors within the insured's control, and not the date sales fully recover to pre-loss levels. Delays caused by the insured's own choices, rather than by the repair itself, generally do not extend this period.

Because the period of restoration is a reasonableness standard rather than a fixed number of days, it needs to be documented against the actual repair timeline — permit dates, contractor schedules, equipment lead times — rather than asserted as a round number. A repair that was delayed by material backorders on a long-lead item, for example, is a defensible extension of the period if the lead time is documented; a repair delayed only because the insured deferred hiring a contractor generally is not.

Business income claims are measured under an actual loss sustained standard: what the business would have earned had the loss not occurred, based on its own financial history and reasonably projected trend, minus what it did earn during the period of restoration, minus expenses that did not have to continue. This is a documented reconstruction of the business's finances, not a flat percentage of revenue or a simple average.

Because the standard depends on financial records, not the physical estimate, it needs its own evidence trail: pre-loss profit-and-loss statements, prior-year tax returns, sales records (point-of-sale or invoicing data), and payroll records covering the affected staff. Continuing normal operating expenses — rent, insurance, scheduled debt service, and payroll for retained employees — are added back on the expense side because they kept being paid whether or not the business was open.

Extended business income coverage continues reimbursement for a stated number of additional days after the physical repair is complete and the property is capable of operating, to cover the realistic ramp-up period a business needs to rebuild its customer base and return to its pre-loss sales trend. Without it, coverage would stop the moment the doors reopen even if revenue has not yet recovered.

Civil authority coverage is triggered by a different cause: a government order that denies access to the insured's premises because of physical damage to other, nearby property (not the insured's own), such as a public safety closure after damage across the street. It is typically limited by distance from the damaged property, by a maximum number of days, and by the requirement that the order results from a covered cause of loss. Because the trigger is the order itself rather than the insured's own damage, the claim file should keep a copy of the order alongside the usual financial records — without it, there is nothing to establish that the coverage's own trigger condition was met.

Contingent business interruption — loss caused by damage to a supplier's or customer's property rather than the insured's own — is a related but distinct coverage and is only mentioned here as a separate topic outside this article's scope.

A restaurant's pre-loss financial trend shows expected monthly net income of $18,000 and continuing normal operating expenses (rent, insurance, retained payroll) of $22,000 per month. A kitchen fire closes the restaurant for a documented period of restoration of two months, during which the business earns $0 in sales and continues paying $22,000 per month in the expenses that do not stop.

A defensible business income calculation is built from the same records an accountant would use, not from the physical damage estimate: profit-and-loss statements for a representative prior period, federal and state tax returns, point-of-sale or sales-ledger records, and payroll records identifying which employees were retained and paid during the closure. Each input should be traceable to its source document, since a carrier's forensic accountant will typically request the underlying records, not just the summary figures.

Seasonality matters in the same way it matters for the underlying business: a two-month closure that overlaps a business's peak season produces a different actual-loss-sustained figure than the same closure during its slowest months, and the prior-period trend used for the projection should reflect that rather than a flat monthly average.

PaxExact's business income calculation is coming soon. The platform side is built — the professional's inputs, the computed result, and an accept or override step recorded with the case rather than left as an unrecorded number in a spreadsheet — but there is no screen for it in the application yet, it is not included in the case report, and the loss period is entered by hand rather than derived as a period of restoration.