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Not legal, tax or financial advice
- This page describes common business insurance in general terms. It is not legal, tax or financial advice. We do not recommend any broker or insurer.
- Coverage depends on the exact policy wording. Read the declarations, exclusions and endorsements before you sign.
- We checked the California agency pages linked below in November 2026.
Insurance is rarely the first thing a founder thinks about. It tends to arrive as a line in a document someone else wrote: a customer contract that requires $2 million in liability coverage, an office lease that asks for a certificate of insurance or an incoming board member who will not join without directors and officers coverage. Only one policy is required by California law for most startups. That requirement starts with your first employee.
This guide explains the policies Palo Alto startups usually carry, what each one is for and where to check the rules. It does not name brokers or insurers. Many local founders get introductions from their lawyers, investors or other founders, then compare quotes.
The one policy California requires: workers' compensation
The state's Division of Workers' Compensation is direct about it: California employers are required by law to have workers' compensation insurance, even if they have only one employee. Its employer fact sheet, dated September 2024, adds several points:
- Failing to have workers' compensation insurance is a criminal offense.
- Employees cannot pay for the policy or have its cost taken from their wages.
- Benefits cover all workers, including part-time employees.
- It is illegal to punish or fire an employee for filing a claim.
How to get coverage
The fact sheet lists two routes. An employer can buy a policy through an agent or broker from any licensed insurer authorized to write policies in California. Or it can become self-insured, which requires approval by the Director of Industrial Relations and meeting financial requirements. Group self-insurance lets smaller employers pool resources, but nearly all startups simply buy a policy. Payroll providers often sell pay-as-you-go workers' comp that bills premiums with each payroll run, which suits a company whose headcount changes month to month.
If someone is hurt
The fact sheet tells employers to give the injured worker a claim form, DWC 1, within one working day of learning about a work injury or illness. The employer then completes form DLSR 5020 and sends it to the claims administrator within five days. Remote employees injured while working at home can also file claims, so keep the forms handy even without an office.
Our guide to payroll and benefits covers the rest of what a new California employer sets up.
Directors and officers (D&O)
D&O insurance protects the people who run the company against claims about management decisions. Many policies also protect the company itself. Typical claimants are shareholders, investors, employees, competitors, customers or government agencies. Policies are usually written on a claims-made basis, which means the policy in force when the claim is made responds, not the one in force when the decision happened.
When startups buy it:
- When an outside investor or independent director joins the board. Experienced directors commonly ask for it.
- Before a priced round, since some term sheets list D&O coverage as a closing item. Our term sheet guide explains those documents.
- Before an acquisition or IPO, when "tail" coverage for past acts becomes a negotiating point.
Read the exclusions closely. Many policies exclude claims between insured people, fraud found by a court and some employment or securities claims unless added back. Your company's indemnification agreements with directors work alongside the policy. A startup lawyer can explain how the two fit.
Errors and omissions (E&O)
Errors and omissions insurance, also called professional liability or technology E&O, covers claims that your product or service caused a customer financial loss. Examples include a software bug that corrupts a client's data, a missed deadline that costs a customer revenue or advice that turns out wrong. For software and AI companies selling to businesses, it is often the policy customers ask about first. Enterprise procurement teams frequently send a vendor questionnaire with minimum limits for E&O and cyber.
Technology E&O is often sold in one package with cyber coverage. If you build AI products, ask how the policy treats claims about model output, training data and intellectual property. Wording on these points varies widely.
Cyber insurance
Cyber policies cover costs after a security incident. Common parts include forensic investigation, legal advice, customer notification, credit monitoring, ransomware response, business interruption and claims from people whose data was exposed.
California law makes the notification piece concrete. The Attorney General's breach reporting page explains that under Civil Code Section 1798.82 a business must notify California residents when their unencrypted personal information was, or is reasonably believed to have been, acquired by an unauthorized person. A business that must notify more than 500 residents because of a single breach must also send a sample copy of the notice to the Attorney General.
Insurers usually ask about security controls before quoting. Multi-factor authentication, backups, endpoint protection and employee training all affect price and eligibility. Wire fraud is a common startup loss, so ask whether social engineering or funds transfer fraud is covered. Our banking guide has tips on verifying payment instructions.

General liability and property
Commercial general liability covers bodily injury and property damage to others, plus some advertising injury claims. If a visitor slips in your office or an employee damages a client's property during an installation, this is the policy that responds. Landlords, coworking operators and event venues usually require proof of it. Our guides to office space and coworking cover the leases that bring these requests.
Property coverage protects your own equipment, inventory and improvements. A business owner's policy, often called a BOP, bundles general liability and property for small companies. Founders working from home should not assume a homeowner's or renter's policy covers business equipment or business visitors. Ask the home insurer in writing.
Other policies to consider
| Policy | What it covers | Who tends to need it |
|---|---|---|
| Employment practices liability (EPLI) | Claims of discrimination, harassment, wrongful termination or retaliation | Any company with employees, more so as headcount grows |
| Product liability | Injury or damage caused by a physical product | Hardware, robotics, consumer devices and medical products |
| Commercial auto | Vehicles owned or used for business | Delivery, field service and test fleets |
| Crime or fidelity | Theft by employees and some fraud losses | Companies that move large sums of money |
| Clinical trial liability | Claims from people in clinical studies | Biotech and medical device companies |
| Key person life | Pays the company if a critical founder dies | Sometimes requested by lenders |
Health insurance for employees is a benefit, not a liability policy. It is covered in our payroll and benefits guide.
How startups buy insurance
- Collect the requirements. Gather insurance clauses from your lease, customer contracts, investor documents and loan agreements. They set minimum limits.
- Check licenses. Use the California Department of Insurance license search to confirm that an agent, broker or insurer is licensed in California.
- Compare quotes. Ask at least two sources. Online platforms, independent brokers and payroll providers all sell startup packages.
- Read the exclusions. Price is only one part. Limits, retentions and exclusions decide what you actually get.
- Calendar renewals. Policies usually renew each year. Update the insurer after a funding round, a big hire wave or a new product line.
- Keep certificates ready. Customers and landlords will ask for certificates of insurance naming them as additional insureds.
Good to know
- Workers' comp is required from the first employee. Everything else is usually required by a contract first.
- Claims-made policies need continuous coverage. A gap can leave past acts uninsured.
- Tell your insurer about material changes, such as a new product category or entering a regulated industry.
- Keep incident records. Late notice is a common reason claims are denied.
Frequently asked questions
What insurance is legally required for a startup in California?
Workers' compensation is the main one. The state's Division of Workers' Compensation says California employers must carry it even if they have only one employee. Going without is a criminal offense and employees cannot be made to pay for it. Other policies are usually required by contracts, leases or investors rather than by law.
What is D&O insurance and do startups need it?
Directors and officers insurance covers claims against the company's leaders for decisions they make running the business, such as claims by investors, employees or regulators. Many startups buy it when they add outside directors, since experienced board members often ask for it before joining. Read the policy's exclusions with your lawyer.
What is the difference between E&O and general liability?
General liability covers bodily injury and property damage, such as a visitor tripping in your office. Errors and omissions insurance, also called professional or technology liability, covers financial losses a customer claims your product or service caused, such as a software failure. Enterprise customers often require both in their contracts.
Do startups need cyber insurance?
Many do, especially those holding customer data. Under California Civil Code Section 1798.82, a business that suffers certain data breaches must notify affected residents. If one breach requires notice to more than 500 Californians, the business must also send a sample notice to the Attorney General. Cyber policies can help pay for investigation, notification and related claims.
How do I check that an insurance agent or broker is licensed in California?
Use the license search on the California Department of Insurance website. It shows whether an agent, broker or insurer holds a current California license. For workers' compensation, the Division of Workers' Compensation says coverage must come from an insurer authorized to write policies in California or through approved self-insurance.