An indemnity agreement is a contract in which one party, the indemnitor, agrees to cover specified losses, damages, or claims that would otherwise fall on the other party, the indemnitee. In plain language it moves a defined risk from one party to the other, so that if a covered problem happens, the indemnitor pays for it.
Most Ontario business owners meet indemnity not as a standalone document but as a clause sitting inside a larger contract, a service agreement, a commercial lease, a supply deal, or the purchase of a business. The exact wording of that clause decides who absorbs the cost when something goes wrong. A few words in the wrong place can shift a large liability from one side of the table to the other. This guide explains what indemnity agreements and clauses do, the types you will see in Ontario contracts, how they sit alongside insurance and the law, and the drafting choices that matter most.
What is an indemnity agreement?
An indemnity agreement is a promise to make another party whole for a defined category of loss. The party giving the promise is the indemnitor. The party receiving the protection is the indemnitee. When a covered event occurs, the indemnitor steps in and covers the cost, whether that cost is a damages award, a settlement, repair expenses, or legal fees.
You will see several names for the same basic idea. A hold harmless promise, a release of liability, a waiver, and a no fault clause all allocate responsibility for risk between parties. The labels differ, but each one answers the same question. If this goes wrong, who pays.
What is the difference between an indemnity agreement and an indemnity clause?
The difference is mostly one of format, not substance. A standalone indemnity agreement is a separate signed contract that does nothing but allocate a risk, often used when a parent company stands behind a subsidiary, when directors want written protection, or when one party takes on a specific exposure outside the main deal. An indemnity clause is the same promise written into a larger contract. In our practice most indemnities in Ontario commercial deals live as a clause inside a service agreement, lease, or purchase agreement rather than as a document of their own. This guide treats the clause and the standalone agreement together and flags where the format changes the analysis.
How does an indemnity work in practice?
A claim or loss arises that falls within the wording of the indemnity. The indemnitee gives notice to the indemnitor, usually within a window the contract sets. The indemnitor then either pays the covered amount, takes over the defense of the claim, or reimburses the indemnitee once the loss is settled. How quickly money actually changes hands depends on whether the clause includes a duty to defend, a notice deadline, and a cap, which we cover below.
When do you need an indemnity agreement in Ontario?
You need an indemnity when one party’s work, products, or use of property could create a cost that lands on someone else. The clause assigns that cost to the party that controls or is best able to absorb the risk.
Common situations in Ontario where an indemnity earns its place include the following.
- A contractor or subcontractor performing work on a site, where a mistake could injure a person or damage property.
- A service provider handling a client’s data, money, or customers, where an error could trigger a claim.
- A commercial landlord and tenant deciding who answers for injuries or damage on the premises.
- A supplier and a buyer allocating responsibility for defective goods or a product recall.
- A technology or software vendor facing claims that its product infringes someone’s intellectual property.
- A buyer and seller in the sale of a business, where the buyer wants protection for problems that predate closing.
If your contract puts you on the hook for the actions of people you do not control, subcontractors, agents, or staff, an indemnity is usually where that exposure is created or limited. That is the moment to read it closely.
What are the main types of indemnity?
Indemnities are grouped by how much risk the indemnitor takes on and by whether the protection runs one way or both ways. The table below sets out the structures you are most likely to see in an Ontario contract and what each one means for your exposure.
| Type | What the indemnitor covers | Typical use | Risk to the indemnitor |
|---|---|---|---|
| Broad form | All losses, including those caused entirely by the indemnitee’s own fault | Rare, sometimes pushed by a stronger party | Highest, and courts may decline to enforce cover for another party’s sole fault |
| Intermediate form | Losses from the indemnitor’s own conduct plus shared fault, but not the indemnitee’s sole fault | Construction and services | Moderate |
| Limited form | Only losses caused by the indemnitor’s own acts or negligence | Balanced commercial deals | Lower |
| Mutual or reciprocal | Each party covers losses caused by its own conduct | Joint ventures and partnerships | Shared between the parties |
| Unilateral | One party protects the other and receives nothing back | Subcontractor to general contractor, vendor to client | Falls on one party |
| Capped | Any of the above, but with a dollar ceiling on what the indemnitor pays | Most negotiated commercial contracts | Limited to the cap |
Two distinctions matter most in negotiation. The first is mutual against unilateral, which decides whether protection runs both ways or only one. The second is whether the indemnity is capped, which decides whether your exposure has a known ceiling or is open ended.
Mutual or unilateral, and when each fits
A mutual indemnity has both parties cover the losses their own conduct causes. It suits relationships where both sides carry similar risk, such as a joint venture or a partnership where each contributes work and each can create exposure. It keeps the deal balanced and tends to reduce friction because neither side feels singled out.
A unilateral indemnity runs one way. One party protects the other and receives nothing in return. This fits where one party controls most of the operational risk, for example a subcontractor who indemnifies a general contractor for claims arising from the subcontractor’s own work. If you are the party giving a unilateral indemnity, that clause is where you carry the most risk in the contract, and it is worth negotiating with care.
Capped indemnities and why the number matters
A capped indemnity sets a maximum dollar amount the indemnitor can be required to pay. A cap gives both sides a known ceiling, which makes budgeting and insurance easier and often unlocks a deal that would otherwise stall. The trade off is that a cap set too low can leave the protected party short when a large loss hits. In our experience the cap is one of the most negotiated numbers in a commercial contract, and parties often tie it to the contract value, then carve out fraud, willful misconduct, and sometimes breaches of confidentiality so those sit above the cap.
Indemnity clause or limitation of liability clause, which do you need?
These two clauses are often confused because both deal with money and risk, but they do different jobs. An indemnity clause shifts a cost from one party to another, often to cover claims brought by an outside party. A limitation of liability clause caps or excludes what one contracting party can recover from the other for problems between them. Many strong contracts use both.
| Question | Indemnity clause | Limitation of liability clause |
|---|---|---|
| What it does | Shifts responsibility for a defined loss onto the other party | Caps or excludes what a party can be made to pay |
| Typical target | Claims from outside parties, such as lawsuits, injuries, infringement | Disputes between the two contracting parties |
| Direction | Often protects the party not at fault | Usually protects the party who might be sued by the other |
| Common carve outs | Gross negligence, fraud, willful misconduct | The same, plus sometimes indemnity duties and confidentiality |
| When you reach for it | You want the responsible party to absorb outside costs | You want to control your maximum downside to the other side |
If your main worry is a claim from an outside party, a customer, a regulator, or an injured visitor, the indemnity clause is doing the heavy lifting. If your main worry is being sued by the other side of your own contract for a large or speculative amount, the limitation of liability clause is what protects you. Reading them together inside a service agreement or any commercial contract tells you your real exposure.
What goes into a strong indemnity clause?
A clause that holds up is specific about who, what, when, and how much. The elements below are the ones we check on every review.
- Parties. Name the indemnitor and the indemnitee clearly. If a corporation is signing, decide whether a director or owner is also giving a personal indemnity, because that changes who pays if the company cannot.
- Scope. State exactly which losses, claims, and damages are covered, and tie them to defined events. A vague scope is the single most common reason an indemnity fails to do what a client expected.
- Triggering events. Spell out what sets the obligation in motion, a breach, an act of negligence, a claim from an outside party, or a specific failure.
- Covered losses. List what counts, damages, settlements, and legal fees, and state whether indirect or consequential losses are in or out.
- Exclusions. Carve out what is not covered, commonly the indemnitee’s own gross negligence, fraud, or willful misconduct.
- Notice and conduct of defence. Set how and when the indemnitee must report a claim, and say who runs the defence and controls any settlement.
- Survival. State that the obligation continues after the contract ends for losses tied to the contract period. Without this, the protection can disappear on termination.
- Insurance. Require the indemnitor to carry insurance that backs the promise, so the protection is real and not just words on a page.
- Cap and governing law. Set the ceiling, if any, and confirm the contract is governed by Ontario law and the courts of Ontario.
A useful test is to read the clause and ask whether you could explain, in one sentence, who pays and how much if the worst likely event happened. If you cannot, the clause needs work.
How do you decide which indemnity structure fits your contract?
The right structure depends on who controls the risk, how evenly matched the parties are, and how much exposure you can absorb. Use the quick framework below as a starting point, then have the specific wording reviewed.
| If this is your situation | Structure that usually fits |
|---|---|
| Both parties contribute work and can each create risk | Mutual indemnity, often capped |
| You hire a contractor or vendor who controls a specific risk | Unilateral indemnity in your favour, backed by their insurance |
| You are the smaller party asked to indemnify a larger one | Push for a limited form and a cap tied to the contract value |
| You are buying a business and worry about hidden problems | Indemnity from the seller for liabilities from before closing, with a survival period and a cap |
| Your real worry is being sued by the other contracting party | Limitation of liability clause, with indemnity as a secondary tool |
| The contract involves consumers rather than businesses | Tread carefully, because consumer protection law limits what you can shift |
This framework points you to a sensible default. The exact figures, the cap, the survival period, and the notice window, turn on the specific deal and the leverage each side holds.
What does Ontario law say about indemnity agreements?
Indemnity agreements in Ontario rest first on the ordinary law of contract. To be enforceable, the promise needs an offer, acceptance, something of value exchanged, and terms clear enough that a court can tell what was promised. A clause that is vague about what it covers is the one most likely to fail when it matters.
Ontario courts generally uphold indemnities that are clear and reasonable. They are far more reluctant to enforce a clause that tries to cover a party’s own illegal conduct, fraud, or gross negligence, and they may refuse to enforce a clause that is so lopsided or drawn from such unequal bargaining power that it becomes unconscionable. Clarity and fairness are what make an indemnity stick.
A few Ontario points are worth knowing because generic articles often miss them.
The limitation period is shorter and trickier than people expect
Ontario’s Limitations Act, 2002 sets a basic limitation period of two years, running from the day a claim is discovered. For a straightforward contractual indemnity, that clock generally starts when the indemnitee suffers the covered loss and knows about it.
There is a wrinkle that catches people out. Where the indemnity is really a claim by one wrongdoer against another for contribution and indemnity, section 18 of the Act presumes the two years starts on the day the party seeking indemnity was served with the original claim, not when the loss is finally quantified. The Court of Appeal confirmed in Mega International Commercial Bank (Canada) v. Yung that this presumed start date can be displaced if the claim could not reasonably have been discovered earlier, but you should never count on that. The practical lesson is to move quickly once you are served, because waiting for the underlying case to finish can run your indemnity claim out of time.
A duty to defend is not the same as a duty to indemnify
These two obligations are often bundled in the phrase indemnify and hold harmless, but they trigger at different moments. A duty to defend can be engaged as soon as a claim is made, at the pleadings stage, which means the indemnitor may have to fund the defence before anyone has decided who is at fault. A duty to indemnify is engaged once liability is actually established. If you are giving the indemnity, agreeing to a duty to defend can mean writing cheques long before any finding against you, so know which one you are promising.
Director and officer indemnities have their own statute
If your concern is protecting directors and officers, the rules sit in the corporate statutes rather than in general contract law. Section 136 of Ontario’s Business Corporations Act lets a corporation indemnify its directors and officers for costs reasonably incurred, provided they acted honestly and in good faith with a view to the best interests of the corporation, and it allows the corporation to advance defence costs subject to repayment if those conditions are not met. The federal Canada Business Corporations Act sets a parallel rule in section 124 for federally incorporated companies. Many Ontario corporations back these statutory rights with a separate indemnity agreement, a shareholders agreement, and directors and officers insurance. If you sit on a board, this is worth confirming before a dispute arises, not after.
Some sectors add their own rules
In construction, Ontario’s Construction Act layers holdback, trust, and prompt payment rules on top of contractual indemnities, so a construction indemnity has to be read alongside that statute. In consumer dealings, consumer protection law voids attempts to make a consumer give up statutory rights. Ontario passed a new Consumer Protection Act in 2023 to replace the 2002 Act, and as of writing it has received Royal Assent but is not yet fully in force, so the rules in this area are in transition. The point for most businesses is simple. An indemnity that tries to push statutory consumer rights onto a consumer will not hold.
This is a light tour, not the whole map. We keep the legal detail to what you actually need, then look at the specific statute that applies to your deal when we review it.
What mistakes do we see most often with indemnity clauses?
The same drafting errors come up again and again, and each one carries a cost. These are the ones worth checking before you sign.
- No cap on liability. Without a ceiling, the indemnitor can owe more than the contract is worth, and sometimes more than the business is worth. The fix is a cap tied to the contract value, with narrow carve outs above it.
- Scope written too broadly or too vaguely. A clause that covers any and all losses with no link to defined events is the one a court is most likely to read down or strike. Precise scope protects both sides.
- Ignoring how the indemnity meets insurance. An indemnity is only as good as the indemnitor’s ability to pay. If the promise is not backed by insurance, the protected party can win on paper and recover nothing.
- No survival clause. If the indemnity does not say it survives termination, the protection can vanish the day the contract ends, exactly when old claims tend to surface.
- Agreeing to a duty to defend without realizing it. As above, this can mean funding a defence before any finding of fault. Clients are often surprised by this one.
- Trying to indemnify the other party for their own gross negligence or wrongdoing. Ontario courts are reluctant to enforce this, so a clause that overreaches can collapse and leave nothing behind.
The cost of these mistakes is rarely the clause itself. It is the loss that lands when the clause does not do what you assumed it would.
The indemnity is usually the most expensive sentence in a contract that requires attention. We slow clients down on exactly that sentence.
Demet Altunbulakli, Founding Lawyer
How do you negotiate a fair indemnity?
A fair indemnity matches the risk to the party that controls it and gives each side a known ceiling. A few habits help.
- Map the real risks first. Decide what could actually go wrong in this deal, then write the indemnity to those risks rather than copying boilerplate from another contract.
- Keep the scope tight. Narrow, specific language is easier to enforce and fairer to both sides than a sweeping promise.
- Agree on a cap. Tie it to the contract value or to a number both sides can live with, and decide together what sits above the cap.
- Consider making it mutual. Where both sides carry risk, a reciprocal indemnity often settles faster than a one way demand.
- Define the words. Make sure damages, losses, and claims are defined the same way for both parties, so you are not arguing about meaning later.
- Match it to insurance. Confirm the indemnitor carries coverage that actually responds to the promised risk.
The goal is not to win every point. It is to leave the table with a clause both sides understand and can live with, because that is the clause least likely to end up in court.
How are indemnity clauses enforced in Ontario, and what happens in a dispute?
To rely on an indemnity, you generally have to do what the contract told you to do. That means giving prompt notice of the claim in the form and within the window the clause sets, providing the details the indemnitor needs, and taking reasonable steps to keep the loss from growing. Ontario courts are far more willing to enforce a clause when the party claiming under it followed the procedure and the wording is clear.
When a dispute arises, it usually comes from one of a few sources. The parties read the scope differently and argue about whether a particular loss is covered. One side claims the indemnity reaches conduct, such as gross negligence, that the other says was never included. A party missed a notice deadline or skipped a step the clause required. Or one side feels the clause is so unbalanced that it should not be enforced at all.
Many of these disputes settle without a trial. Mediation and arbitration are common where the contract calls for them or the parties agree, and both are usually faster and less costly than litigation. If a matter does reach the Superior Court of Justice, the court will look closely at the exact wording, at whether each side met its obligations, and at whether enforcing the clause would be fair. The clearer the clause and the better you followed it, the stronger your position.
Frequently asked questions
Can an indemnity clause be negotiated?
Yes, and it usually should be. The scope, the cap, the carve outs, and who runs the defence are all open to negotiation, and the party being asked to give the indemnity often has more room than they assume. Going through the clause line by line before signing is far cheaper than arguing about it after a loss.
Do indemnity clauses cover claims from outside parties?
Yes. Protecting against claims from an outside party is one of the main reasons indemnities exist. A typical clause makes the responsible party cover the damages, settlements, and legal fees that flow from a lawsuit, an injury, or an infringement caused by its conduct. Whether a specific claim is covered always comes back to the wording.
How does an indemnity interact with insurance?
They work together, and neither replaces the other. An indemnity decides who is responsible. Insurance decides whether there is money behind that responsibility. A strong contract requires the indemnitor to carry coverage that responds to the promised risk, because an indemnity from a party that cannot pay is worth little. Gaps appear when the loss falls outside the policy or exceeds its limits, which is why the two should be reviewed side by side.
Can an indemnity continue after the contract ends?
Yes, if it is drafted to survive. A survival clause keeps the obligation alive for losses tied to the contract period even after the main agreement is over. Without that wording, the protection can end with the contract, which is a problem because many claims surface only after the work is done. This is one of the first things we check.
How long does an indemnity last?
That depends on the contract and the law. The parties can set a survival period, often a few years, and some obligations such as tax or environmental exposure are commonly given longer. Sitting over all of it is Ontario’s basic limitation period of two years to bring a claim, with the timing rules described above. The safest course is to set a clear survival period in the contract and to act promptly once a covered loss appears.
What is the difference between indemnity and hold harmless?
In practice the two travel together and are often treated as one promise. Indemnity is the promise to reimburse a loss after it happens. Hold harmless is the promise to keep the other party from being held responsible in the first place. Many Ontario contracts use the combined phrase indemnify and hold harmless to capture both, which is why you rarely see one without the other.
Are personal indemnities enforceable?
They can be, but the wording and the circumstances decide it. A court is more likely to enforce a personal indemnity that is clear, specific, and freely agreed, and less likely to enforce one that is vague, sweeping, tries to cover wrongdoing, or was signed under real pressure with no chance to get advice. If you are being asked to sign a personal indemnity, that is a moment to get it reviewed, because it can reach your own assets.
The information provided above is of a general nature and should not be considered legal advice. Every transaction or circumstance is unique, and obtaining specific legal advice is necessary to address your particular requirements. Therefore, if you have any legal questions, it is recommended that you consult with a lawyer.
