Business Interruption Insurance: What It Covers and How Claims Work

Business interruption insurance, which policies usually call business income coverage, pays the profit you lose and the bills you keep paying while your business is shut down after covered property damage. On the standard ISO form, it pays “the actual loss of Business Income you sustain due to the necessary ‘suspension’ of your ‘operations’,” and that suspension “must be caused by direct physical loss of or damage to property” (ISO CP 00 30 10 12). A fire, a burst pipe or a storm can trigger it. A slow economy, a lost customer or a pandemic usually cannot.

The short version:

• It covers lost net income plus continuing expenses such as payroll, rent and loan payments, while you repair or relocate.
• Coverage starts only after physical loss or damage from a peril your property policy covers.
• The standard ISO form has a 72-hour waiting period for lost income (CP 00 30). Extra expenses to keep operating are paid from the start.
• Civil authority coverage can pay when a government order blocks access because of damage nearby, within limits.
• Courts nationwide, including California’s Supreme Court in 2024, rejected most COVID-19 closure claims for lack of physical damage.
• Your financial records decide the size of the claim, so the paperwork matters more than with almost any other coverage.

This is general information, not insurance or legal advice. Policy wording varies by insurer and state, and your own policy decides the claim.

What business interruption insurance pays

Business income coverage is rarely sold on its own. It is part of a businessowners policy (BOP), a commercial property policy, or a package policy, and the Alabama Department of Insurance warns that “not all commercial multi-peril policies include business interruption insurance” (Alabama DOI). Check your declarations page for a business income limit before assuming you have it.

When it applies, the ISO form defines business income as net income “that would have been earned or incurred” plus “continuing normal operating expenses incurred, including payroll” (CP 00 30). The NAIC lists the kinds of costs that fall in: rent at a temporary location, payroll, taxes and loan payments (NAIC).

The pieces fit together like this:

Sources: CP 00 30; NAIC.

The last two rows are where small businesses get caught. A storm that knocks down the utility’s lines a few miles away can close you for days without touching your building. Without a utility services endorsement, that is usually not a covered physical loss at your premises. The NAIC also notes these endorsements can carry “limitations when it comes to distances between where the actual loss occurs and the utility’s property.”

Business income is separate from the coverage that replaces damaged contents. Business personal property coverage pays for the ruined stock and equipment; business income pays for the time you cannot trade.

The trigger: direct physical loss or damage

Everything turns on the phrase “direct physical loss of or damage to property.” The damage also has to come from a cause your property policy covers. If your policy excludes flood and a flood closes you, the business income claim fails along with the property claim.

Alabama’s regulator states the rule simply: coverage “typically can only be triggered if there is direct physical property loss” such as fire or flood that suspends operations (Alabama DOI). For computer outages caused by hackers rather than physical damage, look to the business interruption section of a cyber insurance policy instead.

The 72-hour wait and the period of restoration

Business income is paid only for the “period of restoration.” On the ISO form, that period starts “72 hours after the time of direct physical loss or damage for Business Income Coverage” and ends on “the date when the property at the described premises should be repaired, rebuilt or replaced with reasonable speed,” or when you resume business at “a new permanent location” (CP 00 30). Extra expense has no 72-hour wait.

Three details in that wording are easy to miss:

• “Should be,” not “is.” The period ends when repairs reasonably should be finished, not when your contractor actually finishes. Delays you could have avoided can come out of your pocket.
• The policy can expire mid-claim. The form says the policy’s “expiration date of this policy will not cut short the ‘period of restoration’” (CP 00 30).
• Reopening is not the end. Extended business income keeps paying for up to “60 consecutive days” after you reopen while sales recover, and you can buy a longer extended period of indemnity.

Say a kitchen fire closes your restaurant on a Monday night and a reasonable repair takes six weeks. The first three days are not paid as lost income, though the cost of renting a food truck to keep serving from day one could be extra expense. After that, the policy pays your lost profit and continuing costs for the rest of the six weeks, then extended business income helps while regulars drift back.

Many insurers write their own waiting period, expressed in hours or days, so read your declarations rather than assuming 72 hours.

Civil authority coverage

Sometimes your building is fine but you cannot get in. Civil authority coverage applies when a government order prohibits access because of damage to other property. On the ISO form, your premises must be “not more than one mile from the damaged property.” Lost income coverage “will begin 72 hours after the time of the first action” and lasts “up to four consecutive weeks,” while extra expense “will begin immediately” (CP 00 30).

So a road closure after a gas explosion two blocks away can qualify. A citywide order issued to prevent a disease from spreading, with no property damaged, usually does not, as the Alabama regulator warned early in the pandemic (Alabama DOI).

What the COVID-19 rulings decided

Thousands of businesses sued after 2020 closures. Almost all lost, and the reasoning now shapes how “physical loss” is read in other disputes.

California’s Supreme Court closed the door in 2024. In Another Planet Entertainment v. Vigilant Insurance Co., decided May 23, 2024, the court held that “the mere presence or potential presence of COVID-19 on a property” does not meet the threshold, and that there “must be a distinct, demonstrable, physical alteration to the property” (Property Insurance Coverage Law). Losing the ability to use a building, without physical change, was not enough.

Vermont went the other way, but only at the starting line. In Huntington Ingalls Industries v. Ace American Insurance Co. (2022), Vermont’s Supreme Court ruled 3-2 that a shipbuilder’s complaint could proceed, saying physical loss “need not necessarily be visible; alterations at the microscopic level may meet this threshold” (Claims Journal). That was not a finding of coverage. The policies there lacked the standard virus exclusion, and the article notes high courts in Iowa, Massachusetts, Oklahoma, South Carolina, Washington and Wisconsin had ruled against policyholders.

The practical takeaway goes beyond COVID. Any claim built on “we could not use the space” rather than “something was physically damaged” will face the same argument. Losses from contamination that physically alters a building, such as smoke or chemical residue, are a different matter, and the California court left room for them.

How much coverage to buy

NAIC’s advice is to know your income and how it changes with the seasons before you set a limit (NAIC). A garden center that makes most of its money in spring needs a limit that would survive a spring fire, not an average month.

Watch for coinsurance. The ISO form says “We will not pay the full amount of any Business Income loss” if your limit is below a set percentage of your annual business income, and its own example ends with “The remaining $20,000 is not covered” (CP 00 30). Insurers often ask for a business income worksheet to set the limit. Fill it in with your accountant rather than guessing. For how this fits with your other premiums, see what small business insurance costs for an LLC.

How to document a business interruption claim

The insurer works out the loss from “the Net Income of the business before the direct physical loss or damage occurred,” the “likely Net Income” had it not happened, and “your financial records and accounting procedures” (CP 00 30). That means your books are the claim.

1. Report the property damage first, and say in writing that you are also claiming business income and extra expense.
2. Gather at least two to three years of financial statements, tax returns and monthly sales figures, so seasonality is visible.
3. Pull the same months from prior years. A December loss should be compared with past Decembers, not with the annual average.
4. Track every extra cost separately, such as temporary rent, equipment rental, overtime and expedited shipping, with receipts.
5. Keep payroll records showing who stayed on and what they were paid during the shutdown.
6. Resume what you can, quickly. The form requires you to “resume all or part of your ‘operations’ as quickly as possible,” and it reduces the claim to the extent you could have. Write down why you could not reopen sooner.
7. Answer the proof of loss on time. The ISO form asks for a signed, sworn proof of loss “within 60 days after our request.”
8. Consider a forensic accountant for a large claim, and read any reservation of rights letter carefully if the insurer questions coverage.

Sources for the quoted conditions: CP 00 30.

Frequently asked questions

What does business interruption insurance cover?

Lost net income and continuing operating expenses, including payroll, during the time it reasonably takes to repair or relocate after covered physical damage. Extra expense, civil authority and extended business income usually come with it.

Is business income insurance the same as business interruption insurance?

Yes. “Business interruption” is the common name; “business income” is the term ISO and most policies use.

Does business interruption insurance cover a power outage?

Only if the outage comes from covered physical damage at your premises, or you have a utility services endorsement for off-site damage to power equipment.

How long does business interruption coverage last?

Through the period of restoration, which ends when repairs should reasonably be done, plus an extended period after you reopen. The ISO form’s extension is 60 days unless you buy more.

Does business interruption insurance cover COVID-19 closures?

Almost never. Most courts, including California’s Supreme Court in 2024, found no direct physical loss, and many policies also carry a virus exclusion.

Where to go from here

Find the business income limit and waiting period on your declarations page, check for utility services and dependent properties endorsements, and run the coinsurance math with your accountant. If you have a loss now, start the records file today. Arhox is an independent publication, not an insurer, broker, or law firm; our editorial policy and disclaimer explain how these guides are prepared.