TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Home/Articles/Buying & Selling a Business
№ 477 Buying & Selling a Business

Updating Insurance Policies After Buying a Business in Ontario

What insurance coverage a new Ontario business owner needs to arrange before and after closing a business purchase, and why lawyers care about it.

Buying & Selling a Business6 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
All articles
Key takeaways
  • Purchase agreements frequently make proof of insurance a closing condition — the deal does not close until the buyer can show adequate coverage is in place.
  • The two deal structures create different starting points for insurance.

Insurance rarely gets top billing in business purchase negotiations, but a gap in coverage on day one can turn a manageable incident into a legal and financial mess. Whether you bought the shares of a corporation or specific assets, you need to know exactly which policies protect the business the moment you take over — and which ones do not.

This is not a substitute for advice from a licensed insurance broker, who will assess your specific coverage needs. It is a legal perspective on why insurance so often shows up as a closing condition, and what to check as you transition.

Why Insurance Shows Up in the Purchase Agreement

Purchase agreements frequently make proof of insurance a closing condition — the deal does not close until the buyer can show adequate coverage is in place. Lenders and landlords often have their own independent insurance requirements, separate from what the buyer and seller agree between themselves:

Coverage to Review Before You Take Over

Coverage typeWhat it generally protectsWhy it matters at a business sale
Commercial general liability (CGL)Third-party bodily injury and property damage claimsAlmost always a closing condition; landlords and lenders expect it
Property insuranceBuildings, equipment, inventory, and leasehold improvementsConfirms coverage moves with the assets you actually bought
Business interruptionLost income if operations are disruptedOften overlooked, but relevant if the business depends on a single location
Professional liability / errors & omissionsClaims arising from advice or services providedRelevant for service-based businesses; check whether prior-acts coverage is needed
Employment practices liabilityClaims from employees over workplace decisionsWorth reviewing if you are retaining staff under new terms
Cyber liabilityData breaches and related costsIncreasingly requested by lenders and larger commercial landlords
Directors' and officers' liabilityClaims against directors/officers for decisions made in that roleRelevant if you become a director of the target corporation in a share purchase

Share Purchase vs. Asset Purchase: Does the Old Policy Just Continue?

The two deal structures create different starting points for insurance.

In a share purchase, the corporation itself does not change — it is the same legal entity, simply under new ownership. Its existing policies may technically remain in force, but most insurers treat a change of ownership or change of directors and officers as something that must be reported, and some policies include change-of-control clauses that can affect coverage if not disclosed. Never assume an existing policy carries forward unmodified; confirm with the broker or insurer in writing.

In an asset purchase, the buyer is a different legal entity from the seller. The seller's insurance policies do not automatically extend to you or to the assets once they belong to your business. You generally need your own policies in place, effective no later than the closing date, covering the specific assets and operations you acquired.

Steps to Take Before and Immediately After Closing

Frequently asked questions

Can I just add the business to my existing personal or other business insurance?

Sometimes, but it depends entirely on your insurer and the nature of the new business. Talk to a broker before closing rather than assuming an existing policy will extend to cover a newly acquired operation.

What happens if there's a coverage gap between closing and when my new policy takes effect?

Any loss during that gap is generally your risk to bear, with no insurer standing behind you. This is exactly why insurance is often built into the closing checklist rather than treated as a "get to it later" task.

Does my lawyer arrange the insurance for me?

No. A lawyer can flag insurance-related closing conditions and review how insurance interacts with representations, warranties, and secured lending, but placing the actual coverage is the role of a licensed insurance broker.

Do I need to tell my insurer if I'm buying shares in a company that's already insured?

Generally yes. A change in ownership, directors, or officers is the kind of information insurers expect to be told about, and failing to disclose it can jeopardize a claim later.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

This is a business purchase or sale question

Start a file online — flat, published fees, reviewed by a licensed Ontario lawyer before a dollar is owed.

ContactStart a File →