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Construction Contract Deposits in Ontario
Ontario construction contractsDeposits and down paymentsRenovations + new homes
Construction Contract Deposits in Ontario: What Is Reasonable?
A deposit should cover a defined early obligation—not finance the contractor’s whole project before work begins. The contract should state exactly what the payment buys, when it is earned, whether any part is refundable, what proof the owner receives and how the deposit is credited against later invoices.
10%Ontario’s renovation deposit recommendation
24Deposit-clause checks
8Major warning signs
1 ruleMatch payment to real exposure
Ontario recommends—not universally mandates—a renovation deposit of no more than 10%.
Custom homes, design agreements, specially ordered materials and purchase agreements can involve different payment structures. The contract and the actual early costs still matter.
Upload the deposit clause with the payment schedule
Include the quotation, cancellation terms, material orders, payment milestones and every document describing the deposit as refundable or non-refundable.
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Four payments people commonly call a deposit
Renovation depositA modest down payment tied to mobilization, scheduling or a defined first purchase.
Design or pre-construction feePayment for drawings, estimating, engineering coordination or permit preparation.
Material depositMoney tied to a named long-lead purchase, supplier quotation and ownership record.
New-home purchase depositDeposit under an agreement of purchase and sale, which has different Tarion and trust considerations.
Use the correct label. A design retainer, permit reimbursement, material prepayment and new-home purchase deposit do not carry identical refund, ownership or warranty consequences.
What a proper deposit clause should say
| Clause item | What the contract should explain | Owner protection |
|---|---|---|
| Amount and percentage | Exact dollars and percentage of the current contract price. | Prevents later disagreement over what was paid. |
| Purpose | Scheduling, design, permits, mobilization or identified material orders. | Links the payment to a real early obligation. |
| When earned | Which service, purchase or commitment converts the deposit into earned revenue. | Separates unused money from completed work. |
| Refund formula | Unused deposit less documented earned work, supplier cancellation charges and agreed damages. | Avoids the vague phrase “non-refundable in all cases.” |
| Material ownership | Who owns specially ordered materials after the owner pays for them. | Important if the contractor becomes insolvent. |
| Credit on invoices | Which progress invoice receives the deposit credit. | Prevents the deposit from disappearing outside the contract total. |
| Receipt and records | Detailed receipt, supplier documents and proof of payment. | Creates a clear paper trail. |
| Cancellation rights | Cooling-off rights where applicable and the contract’s later cancellation process. | Explains what happens before work and purchasing begin. |
What proof should support a material deposit?
1
Written contract
Deposit amount, due date, purpose and refund terms.
Deposit amount, due date, purpose and refund terms.
2
Detailed receipt
Payer, contractor, date, amount, method and project.
Payer, contractor, date, amount, method and project.
3
Supplier quotation
Product, quantity, price, validity period and delivery.
Product, quantity, price, validity period and delivery.
4
Purchase order
Evidence the contractor actually committed the deposit.
Evidence the contractor actually committed the deposit.
5
Ownership rule
Who owns specially ordered materials before delivery or installation.
Who owns specially ordered materials before delivery or installation.
6
Storage and insurance
Where paid materials are stored and who carries risk of loss.
Where paid materials are stored and who carries risk of loss.
7
Credit treatment
How unused deposit money or supplier refunds are returned.
How unused deposit money or supplier refunds are returned.
8
Payment milestone
What objective event must occur before the next payment.
What objective event must occur before the next payment.
Deposit examples
Ontario renovation recommendationIllustrative CAD $120,000 renovation using the province’s recommended 10% maximum down payment.
CAD $120,000 × 10% = CAD $12,000Defined design retainerIllustrative fixed fee for measured pre-construction deliverables, separate from construction.
Design scope value = CAD $7,500Named long-lead materialSupplier requires 30% on an identified CAD $40,000 window order.
CAD $40,000 × 30% = CAD $12,000Front-loading warningA 20% deposit plus a 25% “start” draw means 45% is paid before equivalent value may exist.
20% + 25% = 45% paid earlyThese are illustrations, not Ontario legal limits. A larger payment can sometimes be justified by a documented product order or design scope, but it needs stronger records and protections.
Bad wording versus controlled wording
Bad: unexplained non-refundable deposit
“A non-refundable deposit of 25% is due upon signing. The Contractor may use the deposit at its discretion.”
Better: defined purpose and reconciliation
“The Owner shall pay a deposit of CAD $12,000 upon signing. The deposit will be credited against Progress Invoice 1. Before applying the deposit, the Contractor may use it only for the pre-construction services and supplier commitments listed in Schedule D. If the Contract is cancelled, the Contractor shall provide an accounting and refund the unused balance after deducting documented completed services, non-recoverable supplier charges and any other amount properly payable under the Contract. The Contractor shall provide a detailed receipt and copies of material purchase records upon request.”
Educational example only. An Ontario lawyer should adapt cooling-off, cancellation, damages, trust, ownership and insolvency terms to the actual transaction.
A receipt saying “deposit” does not explain what happens to the money.
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Eight deposit red flags
!
Large percentage with no breakdown
The contractor wants substantial cash before providing design, permits, materials or site work.
The contractor wants substantial cash before providing design, permits, materials or site work.
!
Deposit described as non-refundable
No distinction between earned costs, cancellation damages and unused money.
No distinction between earned costs, cancellation damages and unused money.
!
Cash only
The owner receives weak proof and loses convenient banking or card records.
The owner receives weak proof and loses convenient banking or card records.
!
No company name on receipt
The payment cannot be matched to the legal contracting party.
The payment cannot be matched to the legal contracting party.
!
Deposit exceeds early exposure
The amount is much larger than the contractor’s documented start-up cost.
The amount is much larger than the contractor’s documented start-up cost.
!
Materials not identified
A large “material deposit” is requested without supplier quotes or order details.
A large “material deposit” is requested without supplier quotes or order details.
!
Personal account payment
Money is directed to an individual unrelated to the contracting entity.
Money is directed to an individual unrelated to the contracting entity.
!
Deposit plus front-loaded draws
The opening payments exceed the value of work and materials actually supplied.
The opening payments exceed the value of work and materials actually supplied.
Ontario renovation, cooling-off, holdback and new-home checks
- Renovation recommendation: Ontario’s updated renovation guidance recommends keeping down payments to no more than 10% and warns against large deposits supposedly needed to buy materials.
- Written payment schedule: Ontario says renovation contracts over CAD $50 must be written and should include the deposit amount and payment schedule.
- Cooling-off period: A qualifying home renovation or repair contract worth CAD $50 or more that is signed in the consumer’s home has a 10-calendar-day cooling-off period. Reasonable compensation may still be payable for work and materials supplied during that period.
- Statutory holdback: Where the Construction Act applies, the payer generally retains 10% of the price of services or materials as they are actually supplied. This is separate from the opening deposit.
- Freehold new-home purchases: Tarion deposit protection can cover eligible freehold purchase deposits up to stated limits. As of April 1, 2026, purchasers should register within 45 days; Tarion says the reduction in maximum coverage for late registration is deferred until January 1, 2027.
- Contract homes on the owner’s land: Tarion treats these differently from purchase agreements. Potential pre-possession protection concerns financial loss from overpayment compared with the value of work and materials supplied, subject to eligibility.
Do not confuse renovation deposits, contract-home progress payments and freehold purchase deposits.
They involve different documents, protections and risks.
Official references: Ontario renovation rights, Ontario renovation-business guidance, Ontario Construction Act, Tarion pre-possession coverage, and Tarion contract-home guidance.
Twenty-four questions before paying
1
Legal contractor name
2
Deposit amount
3
Deposit percentage
4
Deposit due date
5
Purpose of deposit
6
Refundable portion
7
Non-refundable basis
8
Cooling-off treatment
9
Cancellation formula
10
Design-fee treatment
11
Permit-fee treatment
12
Material list
13
Supplier quotations
14
Purchase authority
15
Material ownership
16
Storage location
17
Insurance responsibility
18
Receipt requirement
19
Payment method
20
Tax treatment
21
Credit for unused funds
22
Next payment milestone
23
Holdback kept separate
24
Insolvency risk reviewed
Contract Centre and related guides
Construction deposit FAQ
Is there a legal maximum contractor deposit in Ontario?
Ontario’s renovation guidance recommends keeping down payments to no more than 10%, but that recommendation is not a universal statutory maximum for every construction or new-home transaction.
Is a 50% renovation deposit reasonable?
It is a major warning sign unless the contractor can justify it with project-specific design costs, specially ordered materials or other immediate commitments—and the contract protects the owner if the project does not proceed.
Can a construction deposit be non-refundable?
The contract may describe part of a payment as non-refundable, but it should identify the earned service or loss supporting that treatment. A blanket label does not resolve consumer-law, cancellation or damages issues.
Should I pay a deposit in cash?
A traceable payment method is safer. If cash is used, obtain a detailed signed receipt naming the legal contractor, project, amount, date, HST treatment and purpose.
Does the 10-day cooling-off period always apply?
No. Ontario’s renovation guidance describes a 10-calendar-day cooling-off period for qualifying contracts worth $50 or more that are signed in the consumer’s home. Other contracts may have different or no cooling-off rights.
Is a construction deposit the same as statutory holdback?
No. The deposit is an early contract payment. Construction Act holdback is generally 10% of the price of services or materials as they are actually supplied where the Act applies.
Are custom-home deposits protected by Tarion?
Contract homes are treated differently from freehold purchase agreements. Tarion describes possible financial-loss protection for overpayments relative to work and materials supplied, subject to eligibility and program rules.
Should a lawyer review a large deposit clause?
Yes when the deposit is large, broadly non-refundable, tied to an unlicensed new-home builder, payable before design or permit work, or exposed to insolvency risk.
A reasonable deposit matches the contractor’s real early exposure
Upload the contract, quotation, deposit clause, cancellation wording, material orders and payment schedule. Start with the Free Scan. The complete builder-reviewed Full Report is $99.99, and an independent Ontario construction lawyer can review legal issues from $499.99.
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Reviewed July 30, 2026. General educational information only. The examples are not ready-to-sign legal clauses or universal deposit limits. Obtain Ontario legal advice for the actual agreement.
