Client wants additional insured status on your policy, and your first reaction is probably a mix of confusion and worry. Take a breath. This is one of the most common requests in business insurance. It does not mean something went wrong. It means your client is protecting themselves — and you can handle it quickly once you know the steps.
When a client wants additional insured coverage, you are simply extending a piece of your liability umbrella over them for work you do on their behalf. Most agents can set it up in a single phone call.
Where You Stand: Client Wants Additional Insured
An additional insured is a person or company added to your liability policy who gets protection if they are sued because of your work. They do not own the policy. They cannot change it or cancel it. However, they share your coverage limits for claims tied to what you did for them. For example, if you are a plumber and your work causes a leak that damages a building, the property owner — as an additional insured — could be defended under your policy instead of their own.
When a client wants additional insured status, they are transferring risk. This is standard in construction, property management, consulting, and many service trades. In most cases, the request shows up in the contract you sign before work begins. The contract will usually spell out the exact endorsement form, the minimum coverage limits, and whether the policy must be primary and noncontributory. If you skip this step, you may be in breach of contract before you pick up a tool.
| Industry | Typical Minimum CGL Limit Required | Common Endorsement Forms | Estimated Endorsement Cost |
|---|---|---|---|
| General contractor (commercial) | $1M per occurrence / $2M aggregate | CG 20 10 + CG 20 37 | $25–$75 per name/year |
| Subcontractor (residential) | $1M per occurrence / $2M aggregate | CG 20 10 | $25–$50 per name/year |
| Property management | $1M per occurrence / $2M aggregate | CG 20 26 | Often included at no charge |
| IT consultant / freelancer | $1M per occurrence | CG 20 10 | $25–$50 per name/year |
| Janitorial / cleaning service | $500K–$1M per occurrence | CG 20 10 | $25–$50 per name/year |
The cost depends on whether you add each client by name (a scheduled endorsement) or carry a blanket additional insured endorsement. The blanket option covers anyone your contract requires you to add. It typically runs $50–$200 per year total and saves paperwork if you work with many clients.
What to Do First (Step by Step)
1. Read the contract carefully. Look for the insurance requirements section. Note the coverage limits, the endorsement form numbers (CG 20 10, CG 20 37, etc.), and any language about “primary and noncontributory” or “waiver of subrogation.” These details matter. If you hand your agent the wrong form number, the certificate may be rejected. When a client wants additional insured protection, the contract language is the blueprint.
2. Call your insurance agent. Give them the client’s full legal name, the contract requirements, and the start date. Ask specifically: “Does my policy already include blanket additional insured coverage?” If it does, your agent may only need to issue a certificate of insurance — no endorsement change required.
If not, they will add the client by name. In most cases, this takes one to three business days. Ask your agent to confirm whether CG 20 37 (completed operations coverage) is also needed. Construction contracts almost always require both CG 20 10 and CG 20 37 together.
3. Deliver the certificate and keep a copy. Send the certificate of insurance directly to the contact listed in the contract. Save a PDF in your own files. As a result, you have proof of compliance if a dispute comes up months later. If the client wants additional insured status on a renewed policy, set a calendar reminder 30 days before renewal to request an updated certificate.
What It Will Cost and What to Watch For
Adding a single additional insured by name typically costs $25–$75 per year. Some carriers charge nothing for the first few names. A blanket endorsement runs $50–$200 per year and covers every client your contracts require — this is the better deal if you regularly work with three or more clients who ask. When a client wants additional insured coverage on a large project, the GC may also require you to carry a $5 million umbrella policy, which can add $1,000–$3,000 per year depending on your trade and claims history.
Watch for these common traps. First, adding an additional insured does not increase your policy limits. You and your client share the same $1 million (or whatever your limit is). If a big claim eats up the limit, there is nothing left for either of you. Second, some endorsement forms only cover the client for your ongoing operations — not for claims that surface after the job is done.
That gap is exactly what CG 20 37 closes. If your contract says “ongoing and completed operations,” you need both forms. Third, a client wants additional insured status but also asks for a waiver of subrogation. That means your insurer gives up the right to recover money from the client after paying a claim. This is normal but may carry a separate fee of $25–$50.
Another mistake: confusing “additional insured” with “additional interest.” An additional interest only gets notified if your policy is canceled. They get zero coverage. If a client wants additional insured protection and you accidentally list them as additional interest, they are completely exposed. Double-check the certificate before you send it.
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When a Client Wants Additional Insured Status and You Need Professional Help
Most additional insured requests are routine. However, call your agent or an attorney when the contract demands coverage your current policy does not provide. For example, if a client wants additional insured status with $5 million in limits and you only carry $1 million, you need an umbrella or excess policy. Your agent can quote one. If the contract requires professional liability (errors and omissions) additional insured coverage, that is harder to get — many E&O policies do not allow it. An attorney can help you negotiate the contract language.
You should also get legal help if the contract includes an indemnification clause that makes you responsible for the client’s own negligence. Some states limit or ban these “broad form” indemnity clauses in construction contracts. In most cases, a licensed agent familiar with your trade can handle everything. Ask your state’s Department of Insurance for a referral if you do not have an agent. The NAIC state insurance department directory lists every state regulator’s contact information.
If you are a sole proprietor or new business owner, confirm with your agent that your CGL policy allows additional insured endorsements at all. Most standard commercial policies do. However, some low-cost or nonstandard policies may restrict them. Typically, switching to a standard ISO policy solves the problem without a big price jump.
Frequently Asked Questions
Does adding an additional insured raise my premium?
Usually not by much. A scheduled endorsement runs $25–$75 per name per year. A blanket endorsement costs $50–$200 per year total. Some carriers include blanket coverage at no extra charge as part of a commercial package policy. Confirm the exact cost with your agent before agreeing to the contract.
Can a client wants additional insured status be denied by my carrier?
Yes, but it is rare on a standard CGL policy. Your carrier may decline if the client operates in a high-risk industry or if adding them creates a coverage conflict. If your carrier says no, ask your agent to shop the endorsement with another carrier or adjust the contract terms with your client.
What happens if I forget to add the additional insured before a claim?
If a claim occurs and the client is not listed on your policy, your insurer will likely deny coverage for the client. You could be in breach of your contract, and the client may sue you directly. As a result, always get the endorsement in place before work starts. Set a reminder and follow through.
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Sources & How to Verify
The information on this page is drawn from official government and industry sources. Insurance requirements, premiums, and state rules change, so always confirm the exact figure with your state, a licensed agent, or the authority source.
- U.S. Small Business Administration: sba.gov — federal small-business insurance guidance
- Insurance Information Institute: iii.org — neutral premium and coverage data
- NAIC: naic.org — state insurance regulation data
- U.S. Department of Labor: dol.gov — workers’ compensation overview
- Your state DOI, workers’ comp board, and contractor-licensing board: search “[your state] department of insurance” or “[your state] workers comp” for the exact law and forms
Content last reviewed June 2026. If you notice outdated information, please contact us.
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Informational only — not insurance, legal, or tax advice. Business Insure Guide is an independent educational resource, not an insurance company, broker, law firm, or tax advisor, and this page does not provide insurance, legal, or tax advice. Requirements, premiums, and rules vary by trade, state, and insurer, and change over time. Always confirm the exact coverage, requirement, and price with a licensed insurance agent and your state before you buy. Verify with a licensed professional for advice about your specific situation.