
August 5, 2026
ComparisonsWhat Insurance Is Required for Multi-Channel Ecommerce Sellers?
Marketplaces require $1M to $2M. Wholesale and big-box supplier contracts require $3M to $5M. How channel requirements stack onto one policy.
7 min read


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Professional liability insurance for marketing agencies, also called errors and omissions (E&O) insurance, pays to defend and settle claims that your work cost a client money. Think a missed launch deadline. The average cost runs about $78 per month, most agencies carry $1 million limits to satisfy client contracts, and general liability won't cover a dollar of that loss.
That $1 million figure tracks what most client contracts require, and that's usually what pushes an agency to buy the coverage at all. Cost tracks agency size. Media-liability overlap decides copyright claims, and the contract on your desk sets the limit you actually have to carry.
Professional liability (E&O) insurance for a marketing agency covers financial harm a client suffers because of a mistake in your professional work. Also called errors and omissions, it pays legal defense and settlements when a campaign, deliverable, or piece of advice fails.
Negligence, misrepresentation, inaccurate advice: those are the professional mistakes the Insurance Information Institute maps to this coverage.
Agency E&O is written on a claims-made basis with a retroactive date, a detail that catches new buyers off guard. It covers claims made while the policy is active for work you did after that date. Let it lapse and the retroactive date resets, which can leave older projects unprotected.
Professional liability (E&O) insurance for a marketing agency costs an average of about $78 per month, or roughly $930 a year, for media and advertising businesses. Solo consultants pay closer to $59 per month at $1 million limits.
Bigger ad budgets or higher limits push premiums up, and across professional liability the annual range runs from about $400 to over $7,000. (The general liability and cyber rows in the table below are there for context.)
| Segment | Typical monthly | Typical annual |
|---|---|---|
| Media & advertising agency | ~$78 | ~$930 |
| Solo / boutique marketing consultant ($1M/$1M) | ~$59 | ~$704 |
| General liability (context) | ~$33 | ~$400 |
| Cyber liability (context) | ~$100 to $130 | ~$1,200 to $1,560 |
Most agencies sit at the low end of professional liability insurance cost. About 62% of media businesses pay under $100 a month, and 28% pay under $50. Deductibles commonly run $1,000 to $2,500.
Your agency's premium depends most on revenue. After that come headcount, the services you offer, your claims history, and the limits you choose. An agency running large paid-media budgets carries more exposure than one writing blog copy, so it pays more. (Revenue is the lever underwriters reach for first.)
One agency running a large paid-media budget got a first E&O quote priced off its total revenue, and it came back high. Scoping the coverage to the services the agency actually delivered brought the number down, cutting a real client's quote from roughly $3,600 down to between $1,000 and $2,200.
Agency E&O covers claims that your professional work caused a client financial loss: negligence, errors in a deliverable, missed deadlines, or failure to deliver contracted services. It also pays the legal defense costs, even when the claim is baseless. The policy excludes bodily injury and property damage, which fall to general liability, and it won't cover intentional or criminal acts.
Defense costs usually land first and run largest, well before anyone talks settlement. E&O pays to defend you even when the allegation has no merit.
Take a branding agency we worked with: it missed a product-launch deadline, and the client claimed lost first-week sales. The E&O carrier funded the defense and covered the negotiation, and both sides reached a number without a trial.
Usually yes. Most agency E&O policies fold in media liability. That covers claims from the content you create: copyright and trademark infringement, defamation in ad copy, and invasion of privacy.
Carriers have carved advertising injury out of most general liability forms, moving that advertising and media liability exposure into E&O. Plagiarism and false-advertising claims sit with your E&O too. (This is the overlap most agency owners miss until a cease-and-desist arrives.)
Picture a designer who pulls a stock photo and runs it past the license, using a web-only image in a print campaign. Statutory damages for willful copyright infringement reach $150,000 per work under 17 U.S.C. 504, though the Copyright Office's Copyright Claims Board caps a smaller case at $30,000.
Yes, because general liability and E&O cover opposite risks. General liability handles third-party bodily injury and property damage, like a client tripping in your office. A missed launch deadline is different. That's a professional error, so it falls to E&O instead. Neither policy covers the other's claims, which is why most agencies carry both.
| Coverage | What it covers | Example claim |
|---|---|---|
| General liability | Physical harm: third-party bodily injury and property damage | A client slips in your office and breaks a wrist |
| E&O (professional liability) | Financial loss from a professional error in your work | A missed launch deadline costs the client first-week sales |
That split is why the Insurance Information Institute treats the two as separate lines. A business owner's policy (BOP) bundles general liability with property coverage, but it still leaves out E&O. A complete marketing agency insurance program pairs a BOP or standalone general liability policy with a separate E&O policy that covers the work itself.
Most marketing agencies carry $1 million per claim / $1 million aggregate E&O limits, which is what the majority of media businesses buy and what most client contracts require. Larger enterprise or government clients often demand $2 million. Beyond E&O, an agency that stores client customer data usually adds cyber liability, and an agency with employees adds employment practices liability (EPLI).
About 70% of media businesses buy the $1 million option. The contract drives the choice. Whoever hires you names the limit and then asks for a certificate of insurance proving you carry it.
Agencies holding client data add cyber liability insurance, roughly $100 to $130 per month. Agencies with employees add employment practices liability (EPLI), which E&O doesn't cover. Stacked together, these lines turn digital agency insurance into a small program.
A Coverwatch broker reads the limit your contract names, matches the E&O, and quotes it across 60+ carrier partners. That broker then maps cyber and EPLI to your actual exposure. Line up the E&O limit your contracts require first, then add the rest as your data handling and headcount grow.
Professional liability insurance for a marketing agency runs an average of about <strong>$78 per month</strong> for media and advertising businesses. Solo marketing consultants pay closer to <strong>$59 per month</strong> at $1 million limits, while agencies with large paid-media budgets or higher limits pay more. Across professional liability broadly, annual premiums range from about <strong>$400 to over $7,000</strong> depending on revenue, headcount, and claims history.
Yes. Errors and omissions (E&O) and professional liability are two names for the same coverage, which pays to defend and settle claims that your work caused a client financial harm. For marketing agencies, that policy usually folds in media liability, so it also responds to copyright, trademark, and defamation claims from your creative work.
Marketing agencies need E&O insurance whenever clients rely on their work or a contract requires it, which covers most agencies. E&O covers the financial harm from a professional error like a missed launch deadline. A client contract naming a specific E&O limit is the most common reason agencies buy the coverage.
Agency E&O usually covers copyright infringement, because most policies bundle in media liability for the content you create. That media liability responds to copyright and trademark infringement, defamation, and invasion of privacy claims. The stakes are real, since statutory copyright damages can reach <strong>$150,000 per work</strong> for willful infringement under <a href="https://www.law.cornell.edu/uscode/text/17/504">17 U.S.C. 504</a>.
Most marketing agencies carry <strong>$1 million per claim and $1 million aggregate</strong> E&O limits, the level about 70% of media businesses buy and what most client contracts require. Larger enterprise or government clients often demand <strong>$2 million</strong>. The right limit usually comes down to what your biggest client contract specifies.

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