You are currently viewing How to file a business interruption claim in California

Any fool can know. The point is to understand.

-Albert Einstein

Here are general steps you should take to file a business interruption claim in California, along with some helpful information.


Do you have business interruption insurance? If so, do you know what it covers and what the limits are? Do you know how you’re supposed to give notice of loss?

This information should be available in your policy. Start first by reviewing the declarations page. Make sure you have a complete copy of your policy, including all endorsements in effect on the date of loss.


Give notice of the loss your insurance company. It’s important to do this as soon as possible, even if you don’t think there’s coverage for the loss. The reason that’s important is because insurance policies require you to notify them of any loss that could be covered under the policy.

Giving notice to the insurance company is also important because that requires the insurance company to investigate the loss. It’s the insurance company’s duty to do so. An insurance company must “fully and fairly” investigate the loss. A standard form letter from the insurance company, without more, is arguably not a “full and fair” investigation.


Generally, this requires you to submit documentation showing the loss. Sometimes that means you have to complete paperwork affirming the truth of the loss. You should give a proof of loss as soon as possible. Problems arise, however, when you don’t have all the necessary information showing the loss (e.g. you’re unaware of the full extent of the loss, you’re unable to obtain the right documentation). Most courts recognize a “substantial compliance” standard for proofs of loss, but not all. And it’s unclear what your insurance company may do if you don’t submit a full and timely proof of loss.


Examinations under Oath (EUO) are similar to a deposition in a civil lawsuit. You are asked questions under oath by the insurance company. Its purpose is similar to giving proof of loss. Going forward without an attorney to help you, however, is unadvisable.


You have a duty to mitigate the loss. For example, if you can try to minimize or alleviate the loss, you should. Sometimes that includes protecting property from further loss; at a minimum it means being proactive to protect against any ongoing loss.

Here’s an interview about the different types of business insruance.

Have questions? Contact Me for a free consultation.

Evan Walker

Evan W. Walker is a La Jolla attorney who has practiced law since 2008. He has practiced law throughout California, Connecticut, and Louisiana.

Evan worked for and defended insurance companies during the first 7 years of his practice. Since 2015, he has represented people with personal injury and property damage claims and insurance disputes.

Evan’s practice is devoted to serious personal injury claims and catastrophic property damage claims. Areas of focus include security claims against bars and other businesses, government tort claims, fire and flood claims, and inverse condemnation. On behalf of clients, Evan has fought insurance firms, international companies, cities, bars, and casinos.

Evan regularly shares his expertise with other attorneys by teaching courses on insurance and inverse condemnation. He has taught several continuing legal education courses to Attorney Credits, a nationwide CLE company, and ProLawCLE, another nationwide CLE company. He also contributes to various podcasts and publications.


  • Member, State Bar of California
  • Member, San Diego Bar Association
  • Member, Consumer Attorneys of California
  • Member, Consumer Attorneys of San Diego
  • Member, La Jolla Bar Association
  • Member, La Jolla Village Merchants Association
  • Member, San Diego Chamber of Commerce