Standard business income coverage pays only when direct physical loss at your own premises shuts you down — so a power outage that starts at the utility, or a supplier’s fire three states away, closes your business without triggering your policy. Off-premises service interruption and dependent business interruption coverage exist to answer exactly those losses.
The most common business interruption gap is not a limit that is too low — it is a trigger that never fires. A business income policy responds to suspension caused by covered physical damage at the described premises; it says nothing about the substation that feeds the building, the supplier whose parts the production line cannot run without, the anchor store that pulls traffic past the front door, or the cloud platform the order system lives on. Those losses start somewhere else and arrive as lost revenue all the same. This article walks through why the standard trigger excludes them, what off-premises service interruption coverage picks up, how dependent (contingent) business interruption works, and the scheduling and waiting-period details that decide what actually gets paid.
Why doesn’t standard business income coverage respond to an off-premises loss?
Because the trigger is built on location. Business income and extra expense coverage replaces lost net profit and continuing expenses when operations are suspended by direct physical loss — but the loss has to be to property at the premises described on the policy, from a covered cause. A tornado that takes the roof off qualifies. The same tornado taking out the feeder line a mile away does not, even though the register stops either way. A business reviewing its commercial insurance program will usually find the interruption coverage stops at the property line — and modern operations rarely do.
Iowa has already run this experiment at scale. The August 2020 derecho left hundreds of thousands of Iowa homes and businesses without power, some for more than a week — and for every building with structural damage, there were many more that were physically untouched and still dark, closed, and losing revenue. Untouched-but-dark is precisely the loss the standard trigger does not reach.
What does off-premises service interruption coverage actually pay?
Off-premises service interruption coverage extends business income (and often property damage) protection to interruptions of utility services — power, water, communications — caused by covered physical damage to the utility’s own property away from your premises. The substation fire, the ice-downed feeder, the contractor who cuts the water main: with the extension in place, the resulting shutdown is treated like a covered suspension.
Two details in the form decide most claims. First, overhead transmission and distribution lines are commonly excluded from the definition of covered utility property unless coverage for them is specifically bought back — and in a windstorm-and-ice state, the overhead line is usually the thing that fails. Second, the coverage typically carries its own waiting period, often 24 to 72 hours, so a half-day outage may never reach the trigger at all. The equipment breakdown policy is the other half of this conversation: it can pick up service interruption from a breakdown at the utility, and it responds when the surge that rides in on restoration takes out your own panels and compressors.
What is dependent business interruption?
Dependent business interruption — also called contingent business interruption or contingent BI — covers your lost income when covered physical damage shuts down someone else’s property that your revenue depends on: a supplier, a customer, a “leader” property that draws traffic to you, or a manufacturer whose product you sell. The standard framework recognizes four kinds of dependent property: contributing locations that supply you, recipient locations that buy from you, leader locations that attract your customers, and manufacturing locations that produce goods for your account.
The exposure is easy to underestimate because it hides in ordinary arrangements. The metal fabricator with one heat-treating vendor, the food processor selling most of its run to one grocery chain, the restaurant beside the anchor tenant, the parts distributor whose sole-source factory floods — none of them suffered property damage, and all of them lost the revenue just the same. The dependency picture increasingly includes technology as well: when the platform an operation cannot invoice without goes down, the revenue loss is real, but a fire at a data center and a ransomware event at the same data center are answered by different policies — the second belongs to cyber liability coverage, and a program that has never mapped which policy answers which outage has a seam waiting to open.
How do the schedule, limits, and waiting periods decide what gets paid?
Dependent BI is written two ways: scheduled — named dependent properties, each with its own limit — or blanket, a single limit over unnamed dependencies. Blanket coverage sounds better and often carries a modest sublimit doing quiet work; scheduled coverage forces the useful discipline of actually naming the properties the revenue depends on. Either way, the same rules that govern any policy apply with extra force here: the coverage lives in the sublimits, the exclusions, and the conditions, not the headline. Three questions surface most of the gaps. Does the dependent-property damage have to be from a cause of loss your own policy covers (it almost always does — the supplier’s flood loss does not trigger your policy if flood is excluded on yours)? What is the waiting period, and is the limit a dollar amount or a number of days? And are overhead transmission lines bought back on the service-interruption extension, or is the likeliest failure point in the state still excluded?
How does Avanti Group build the off-premises picture into a program?
At Avanti Group, the dependency map is part of the Business Risk Diagnostic™ that precedes any quote: which utilities feed the operation and from where, which suppliers and customers the revenue actually concentrates in, which properties pull traffic, and which platforms the business cannot transact without — then reading the proposed forms to see which of those dependencies would be covered, at what sublimit, after what waiting period. Most dependent business interruption programs are not underpriced; they are under-built — a token blanket sublimit, no transmission-line buyback, a waiting period nobody noticed. If the last review of your interruption coverage stopped at your own four walls, the next review of the commercial insurance program should start with everything outside them.
Frequently Asked Questions
Does business income coverage pay if the power goes out but my building isn’t damaged?
Usually not, under the standard form. Business income coverage requires suspension caused by direct physical loss at your described premises from a covered cause. An outage that originates at the utility — a substation fire, a downed feeder, storm damage to the grid — is physical damage to someone else’s property, so the standard trigger never fires even though your business is closed. Off-premises service interruption coverage is the extension built for exactly this loss, subject to its own waiting period and to whether overhead transmission lines are included.
What is the difference between dependent BI and contingent BI?
They are the same coverage under two names. “Contingent business interruption” is the traditional market term; “dependent property” is the language modern forms use. Both cover your lost business income when covered physical damage shuts down property you do not own or operate but that your revenue depends on — suppliers (contributing locations), customers (recipient locations), traffic-drawing neighbors (leader locations), and manufacturers producing goods for your account.
Does my supplier’s flood or earthquake loss trigger my dependent BI coverage?
Only if the cause of loss is covered under your own policy’s terms. Dependent BI almost always requires that the damage to the dependent property be from a cause of loss your form covers — so if flood is excluded on your policy, the supplier’s flood shutdown generally does not trigger your coverage, even though the dependency and the lost revenue are real. This cause-of-loss alignment is one of the first things to check on any dependent BI grant, along with the sublimit and the waiting period.
What waiting period applies to off-premises power outage coverage?
Most service interruption extensions carry their own waiting period — commonly 24, 48, or 72 hours — before coverage begins, and some apply the waiting period as a straight time deductible. A short outage may never reach the trigger at all, and on a longer one the first days are typically yours. The waiting period, the sublimit, and whether overhead transmission and distribution lines are covered are the three variables that decide most utility-outage claims.
Is a cloud or software outage covered by dependent business interruption?
Generally not by the property form. Dependent BI responds to physical damage at a dependent property — a fire at a data center can qualify where dependent tech coverage is written, but a ransomware event, a software failure, or a cloud-provider outage without physical damage belongs to cyber liability, where contingent business interruption for non-physical events is written as its own coverage. The practical step is mapping which platforms the operation cannot transact without and confirming which policy — property or cyber — answers each outage scenario.