If you provide professional advice, consulting, creative services, technical work, financial support, strategy, design, or other client-facing expertise, a client may eventually ask for proof of your Errors & Omissions coverage. It can happen before a contract is signed, during vendor onboarding, or when a client updates its insurance requirements. For many businesses in Canada, that proof comes in the form of a COI - Certificate of Insurance.

A certificate does not replace your full policy. It is a summary that confirms active coverage and lists key details such as the insured business name, insurer, policy number, effective dates, coverage type, and limits. In the context of professional insurance, a certificate of insurance helps show that your business carries coverage for claims involving alleged mistakes, negligence, missed deadlines, or failure to deliver professional services as promised.

“A COI is one of those documents business owners often do not think about until a client asks for it,” said Icah Navidad, Commercial Sales Representative at Western Financial Group. “But when you are trying to get a project started, proof of insurance can matter just as much as the proposal, scope of work, or signed contract.”

Why a client may ask for a Certificate of Insurance or COI

Clients ask for a COI because they want to confirm that the business they are hiring has insurance in place before work begins. This is especially common for consultants, IT professionals, marketing agencies, designers, bookkeepers, business advisors, and other service providers whose work could affect a client’s finances, operations, reputation, or project timeline.

For the client, the certificate is a quick way to confirm coverage without reviewing the entire policy. For the business owner, it can help build trust and keep the contract process moving. Some clients will not issue a purchase order, approve vendor onboarding, or allow work to start until the certificate has been provided.

That request does not usually mean the client expects a problem. More often, it is part of their own risk management process. Larger organizations, municipalities, property managers, technology firms, and regulated industries may have standard insurance requirements for every professional service provider they work with.

“When a client asks for a certificate, it is usually not personal,” said Icah. “They are checking that the right professional insurance is in place and that the coverage matches what the contract requires. It is a normal part of doing business, especially when a client is relying on your expertise.”

What information your broker may need

To request a Certificate of Insurance, start by contacting your broker or insurance advisor. Be ready to share the client’s legal name, mailing address, contract or project name, required coverage limit, deadline, and any special wording requested in the agreement. If the contract includes insurance requirements, send that section along too.

This helps your broker confirm whether the client is asking for proof of errors & omissions coverage only, or whether they also require commercial general liability, cyber insurance, professional insurance, additional insured status, waiver language, notice of cancellation wording, or specific policy limits.

It is important not to guess at certificate wording. A small difference in the client’s legal name, required limit, or project description can slow down approval. If the contract asks for wording your policy does not support, your broker can explain what can and cannot be shown on the certificate.

“The fastest certificate requests are usually the clearest ones,” said Icah. “If you can send the contract requirements, the client’s legal name, the project details, and the deadline, your broker has a much better chance of getting it right the first time.”

What a Certificate of Insurance usually shows

An Errors & Omissions COI usually includes the named insured, insurer, policy number, effective date, expiry date, coverage type, and limits of insurance. Depending on the request, it may also include a description of operations or a contract reference.

A COI is proof of insurance, but it is not the policy itself. It does not usually include every exclusion, condition, deductible, endorsement, or claims-made requirement. That is why business owners should keep their own policy documents and ask questions if they are unsure how their coverage works.

Timing can also matter because many Errors & Omissions policies are written on a claims-made basis. The policy details, retroactive date, reporting requirements, and coverage terms can affect how a claim is handled. A certificate may show that coverage is active, but it does not replace a conversation about the policy itself.

“A certificate is a snapshot,” said Icah. “It confirms key details for the client, but it is not a shortcut for understanding your coverage. Business owners should still know what their policy covers, what it excludes, and when they need to update it.”

How to avoid delays when a client asks for a COI

If you know a client will need proof of insurance, do not wait until the morning work is supposed to begin. Ask for the insurance requirements early, especially if the contract involves a large organization, public sector client, regulated industry, technology project, or professional service agreement with strict vendor onboarding rules.

It also helps to review your current limits before promising anything to a client. If the contract requires $2 million in Errors & Omissions coverage and your policy limit is lower, the certificate cannot simply show the higher number. Your broker would need to review whether higher limits are available and whether your policy should be adjusted.

Keep in mind that some clients ask for more than E&O. They may also request general liability, cyber insurance, automobile coverage, workers’ compensation information, or additional insured wording. Those requests can be reasonable in some contracts, but they need to line up with the insurance you actually carry and the work you are doing.

Before submitting the certificate, double-check that the client name, project description, policy dates, and limits match the request. A quick review can help avoid back-and-forth and prevent delays in getting approved as a vendor or starting work.

“Certificate requests are often time-sensitive because they are tied to a contract start date,” said Icah. “The sooner you involve your broker, the easier it is to catch issues before they delay the project.”

When to update your certificate or coverage

You may need a new certificate when your policy renews, when a client signs a new contract, when project requirements change, or when the certificate holder information needs to be updated. Clients may also ask for a refreshed certificate if the policy expires before the work is complete.

Coverage should also be reviewed when your business changes. If you start offering new services, enter a new industry, take on larger clients, use subcontractors, provide more technical advice, or expand outside your usual region, your professional insurance needs may change too. The certificate should reflect the insurance program behind it, not just help you check a box for one client.

For businesses in Canada, a certificate of insurance can be a small document with a big role in winning work, building client trust, and meeting contract requirements. The process is straightforward when you know what the client needs, gather the right details, contact your broker early, review the certificate, and keep your coverage up to date.

Before your next client asks for proof of coverage, speak with a licensed broker about Errors & Omissions, Professional Insurance, and the COI - Certificate of Insurance process. Having the right information ready can help you respond faster, protect your business, and keep your next project moving.