Professional Liability (E&O) Insurance in Ontario
How Errors & Omissions insurance differs from general liability and why advice, services and professional negligence create a distinct business-insurance exposure.
E&O is designed for professional-service risk
IBC says businesses paid to provide professional services or advice may need professional liability, also known as Errors and Omissions insurance. It can address covered damages and defence arising from professional negligence, subject to policy terms.
Why CGL and E&O are different
CGL is generally centred on third-party bodily injury and property-damage liability arising from business operations. Professional liability addresses a different class of allegations: errors, omissions or negligence in professional services or advice.
A business may need one, both or neither depending on its operations, contracts and regulatory environment.
Which businesses may evaluate E&O?
IBC gives examples involving professional advice and services. Consultants, technology businesses, designers, agencies, professional service firms and other businesses whose clients rely on their expertise can have E&O exposure.
The insurer's definition of professional services is important. A policy should be read against the actual services described in contracts and invoices.
What can affect an E&O premium?
Pricing can reflect the profession, annual revenue, type of clients, contract size, geographic scope, prior claims, years in business, limits, deductibles and risk controls.
Because those variables differ dramatically by profession, Canada Rate Lab will build profession-specific cost research rather than publish one misleading Ontario E&O average.
Some professions can have separate regulatory insurance rules
Ontario has professions where professional liability insurance requirements are set by legislation or professional regulation. Those requirements should be checked with the relevant regulator rather than inferred from a generic E&O guide.
Canada Rate Lab labels statutory or licensing requirements separately when a reliable primary source exists.
Questions to ask before comparing policies
Describe the work, products, services and locations rather than relying on a broad industry label.
Compare equivalent limits, deductibles, sublimits and endorsements before comparing price.
Read exclusions and conditions that can move a risk into another policy or leave it uninsured.
Separate statutory rules from lease, customer and general-contractor insurance requirements.
Frequently asked questions
The exact protection depends on the policy wording, limits, exclusions and endorsements. This guide separates the core risk addressed by Professional Liability (E&O) Insurance from other business risks that may need different coverage.
There is no safe province-wide answer based only on the coverage name. Requirements can come from legislation, licensing, vehicle rules, workers' compensation rules, leases or client contracts. Canada Rate Lab identifies documented requirements separately from optional private insurance.
Pricing can depend on the business activity, revenue or payroll, locations, workers and subcontractors, property or vehicles, claims history, limits, deductibles and the insurer's underwriting rules. One generic small-business premium is therefore not a reliable benchmark.
Usually not. CGL, professional liability, commercial auto, property, cyber, business interruption, tools coverage and workers' compensation address different exposures. The actual combination should follow the business operations and contractual requirements.