- Quantum meruit is a remedy, not a contract claim.
- A quantum meruit claim generally requires you to establish: 1.
- A court will typically look at evidence such as: - What comparable work or services generally cost in the market - Time spent, materials used, and any records you kept along the way -…
You did the work. Maybe you consulted, built, designed, or delivered materials on a handshake deal, a half-finished contract, or an understanding that was never put on paper. Now the other side won't pay, and you're wondering whether "we never signed anything" means you're out of luck.
Often, it doesn't. Ontario courts have a long-standing tool for exactly this situation: quantum meruit, a Latin phrase meaning roughly "as much as he has deserved." It lets you claim the reasonable value of work or services you provided, even where there's no enforceable contract fixing the price.
This article explains what quantum meruit covers, what you'd need to show, and how it compares to other ways of pursuing payment.
What Quantum Meruit Actually Means
Quantum meruit is a remedy, not a contract claim. Instead of asking a court to enforce a bargain, you're asking it to prevent someone from keeping the benefit of your work without paying anything reasonable for it. The focus shifts from "what did we agree to charge" to "what was this work actually worth."
It typically comes up when:
- Work started before a contract was finalized or signed
- A contract existed but turned out to be unenforceable, incomplete, or too vague on price
- A contract was terminated partway through, after some work was already done
- There was never a formal agreement, but the other party knowingly accepted the benefit of your work
What You Generally Need to Show
A quantum meruit claim generally requires you to establish:
- You performed work, services, or supplied materials. This can be documented through invoices, timesheets, photos, delivery records, or correspondence.
- The other party received and accepted the benefit. They used what you built, occupied the space you renovated, relied on the advice you gave, or otherwise took the value.
- It would be unfair for them to keep that benefit without paying something for it. Courts look at the whole relationship, not just a technicality.
- No enforceable contract price governs the work in question. If a valid contract already fixes what's owed, you generally sue on the contract instead — quantum meruit fills the gap where a contract doesn't.
How a Court Approaches "Reasonable Value"
There's no fixed formula. A court will typically look at evidence such as:
- What comparable work or services generally cost in the market
- Time spent, materials used, and any records you kept along the way
- Quotes, estimates, or partial invoices exchanged during the project
- Any partial payments already made, and what they were understood to cover
- Communications showing what the parties actually expected, even informally
The stronger your paper trail, the easier it is for a court to land on a defensible number rather than guessing.
Quantum Meruit vs. a Straight Breach of Contract Claim
| Breach of Contract | Quantum Meruit | |
|---|---|---|
| Legal basis | An enforceable agreement exists | No enforceable price term applies to the work |
| What you claim | The contract price, or damages for the bargain | The reasonable value of the benefit conferred |
| Typical evidence | The contract itself, plus proof of breach | Invoices, market rates, proof the benefit was accepted |
| When it's used | Contract is valid and covers the dispute | Contract is missing, incomplete, unenforceable, or silent on price |
It's common to plead both, in the alternative, when it isn't yet clear whether a court will find an enforceable contract. That way, if the contract claim fails, the quantum meruit claim can still succeed.
Where to Bring a Quantum Meruit Claim
Like most Ontario civil money claims, the right court depends on the amount involved. Smaller claims generally go to Small Claims Court, which has a defined monetary ceiling that has changed over time — as of mid-2026, confirm the current limit before filing, since it's adjusted periodically. Larger or more complex claims proceed in the Superior Court of Justice.
Timing matters too. Ontario's general limitation period runs from when you discovered — or reasonably should have discovered — that you had a claim, not necessarily from the date the work was done. As of mid-2026, the basic period is generally two years, but shorter special periods can apply to certain claim types, so don't assume you have the full window without checking.
Building Your Case Before You File
- [ ] Gather every invoice, estimate, or quote exchanged, even informal ones
- [ ] Save emails, texts, or messages describing the scope of work and any pricing discussion
- [ ] Collect photos, delivery slips, or timesheets showing the work was actually done
- [ ] Document how the other party used or benefited from the work
- [ ] Note any partial payments and what they were said to cover
- [ ] Write a timeline while events are fresh, before memories fade
Frequently asked questions
Do I need a written contract to have any claim at all?
No. Quantum meruit exists precisely for situations without an enforceable written price term. You still need solid evidence of the work performed and its value, but the absence of a signed contract is not, on its own, a bar to recovery.
Can I claim quantum meruit and breach of contract at the same time?
Yes, and it's common practice to plead both where there's genuine uncertainty about whether a contract is enforceable. A court will typically consider the contract claim first and only turn to quantum meruit if the contract claim doesn't succeed.
What if the other side says the work was a gift or a favour?
This is a common defence, and it turns on the facts — was there a commercial context, an expectation of payment, or prior dealings suggesting compensation was understood? Documentation showing a business relationship, rather than a personal favour, generally strengthens your position.
How is the amount I can recover calculated?
There's no set formula. A court looks at the reasonable market value of the work, factoring in your own records, comparable rates, and what the parties' conduct suggests they expected. It is not automatically the same as what you would have invoiced under a contract that never existed.
This is a litigation question
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