Subcontracting: Payment and Liability in the Contractual Chain
- Lesson 25 of 37
- Advanced
- 17 min
- Reviewed
By James R. GosnellEducational material, not legal advice.
Key points
A subcontract ordinarily binds the contractor and subcontractor while leaving the principal contract legally distinct. Payment clauses, third-party benefits and statutory or extra-contractual remedies can connect the participants without merging their obligations.
Overview
A general contractor promises a complete project to an owner and entrusts particular work to another enterprise. The resulting project is economically coordinated, but the contracts remain legally distinct. A ordinarily claims its price from the contractor that engaged it, while the owner claims contractual performance from the general contractor.
(sous-traitance) creates exceptions and interactions that require careful analysis: retained payments, third-party benefits, conditional payment clauses, construction warranties and extra-contractual fault. This lesson concerns the ordinary civil framework, particularly private construction. Public construction contracts and their subcontracts may carry special payment and dispute rules that must be checked before applying an ordinary contractual clause. General formation and performance are treated in enterprise and service contracts.
Learning Objectives
- Qualify the subcontract and map the separate obligations of the owner, general contractor and subcontractor.
- Distinguish independent payment rights, third-party benefits, payment clauses and construction security.
- Select the appropriate contractual, statutory or extra-contractual basis of recourse and identify its proof and timing requirements.
Qualification and retained responsibility
allows a contractor or service provider to enlist another person to perform the contract, unless it was entered into because of personal qualities or that course is incompatible with its nature. The contractor nevertheless retains direction and responsibility for performance. Delegating physical execution does not eliminate the undertaking made to the original client.
A subcontractor (sous-entrepreneur) performs all or part of an undertaking assumed by its own client toward a further client. Its obligations must correspond in nature to the relevant undertaking in the principal contract. The subcontract is itself a form of contract of enterprise; it can also occur in a service chain. Multiple tiers are possible. At each tier, identify the contracting entities instead of treating every participant as a party to one collective project agreement.
Distinguish a supplier from a subcontractor. Delivery of stock materials ordinarily constitutes a sale. Undertaking to fabricate and install an integrated part of the project may constitute an enterprise obligation. Where materials and labour are combined, consider the relative economic importance of delivery and incorporation and the actual promised result. Supplying materials does not automatically eliminate subcontractor status, and attending the site merely to unload materials does not establish it.
Also distinguish a (mandat). A subcontractor who purchases materials normally contracts in its own name. It does not, merely through subcontractor status, represent either the general contractor or owner. The seller's personal claim ordinarily lies against its purchaser. Actual authority to represent another person must be established separately; the name of the construction project on an invoice does not itself confer authority.
Under , freedom in choosing methods and means distinguishes the enterprise relationship from employment subordination. Coordination, sequencing and compliance with plans can coexist with that autonomy. Conversely, a label cannot preserve subcontractor status if the actual relationship has different characteristics. Professional licensing and mandatory qualification requirements also remain relevant; engaging a specialist does not automatically answer whether the principal contractor itself needs a particular authorization.
Worked example: three purchases for one project
Factual Scenario
Hypothetical. A general contractor engages a roofing enterprise to supply and install a complete roof. That enterprise buys insulation from a merchant and rents lifting equipment in its own name.
The roofing agreement concerns performance of part of the general undertaking. The merchant's supply and the equipment arrangement must each be classified separately. Neither merchant nor lessor becomes the owner's contractual creditor merely because its property contributes to the roof. If the roofing contractor engages another independent installer, a further subcontract may arise without replacing the earlier contracts.
Relative effect and the contractual chain
The (effet relatif des contrats), expressed in , means that an agreement ordinarily creates rights and obligations between its parties. The owner-general contractor contract does not automatically bind the subcontractor to every clause. The subcontract likewise does not automatically make the owner liable for its price. The same separation applies between two subcontractors engaged by the general contractor.
Contractual incorporation can reproduce principal-contract requirements in the subcontract. Identify the incorporated documents, their availability and the particular obligations adopted. A requirement to follow technical plans does not necessarily incorporate every payment, indemnity or dispute clause. The legal basis is the subcontractor's agreement to those obligations, rather than the mere existence of a principal contract containing them.
If plumbing work is defective, the owner ordinarily demands correction from the general contractor under their agreement. The general contractor then enforces the subcontract. It cannot escape the owner's contractual claim merely by identifying its plumber as the person who performed the work. Equally, a subcontractor whose conforming work remains unpaid ordinarily sues its own contractual client.
The structure requires care with instructions. A site conversation can provide evidence of a requested change, but it does not necessarily establish the speaker's power to amend a subcontract or bind the owner to additional payment. Record who requested the change, who had authority, the scope and price response, and the route through which it was accepted. Operational cooperation and legal commitment are separate factual questions.
Finally, subcontracting does not necessarily create a legally separate completion date for every trade. The construction rules refer to the overall work, and the doctrine identifies disagreement about transposing particular provisions governing works into contractor-subcontractor relations. Determine the relevant provision and payment agreement rather than assuming that every departure from the site starts all clocks. The construction acceptance and warranties lesson explains the distinction between completion, delivery and acceptance.
Payment remains independently owed
The ordinary starting point is two debts: the owner owes the general contractor under the principal contract, and the general contractor owes the subcontractor under the subcontract. Cash-flow dependence does not itself make the second debt conditional on payment of the first. A subcontractor claiming payment must prove its agreement, the relevant work, the amount claimed and maturity of the obligation.
The general contractor may raise its own contractual defences, including defective performance, unsupported extras or an applicable holdback. It must connect the defence to the subcontract and the amount withheld. An owner's unrelated complaint about another trade does not automatically permit withholding all sums from a subcontractor that performed correctly. The contract may alter the allocation, which is why the precise clause matters.
For agreed progress payments on immovable work, requires the contractor to provide the client with a statement of sums paid and still payable to project participants and suppliers. That statement gives the owner information needed to assess payment and construction security exposure. It does not create a direct agreement with every listed subcontractor.
The (retenue légale) under permits the client to retain enough to discharge eligible claims for which releases have not been supplied, subject to the provision's conditions and sufficient substitute security. It ordinarily protects the client against competing claims over the immovable. Its existence does not convert the client into a universal guarantor of the contractor's accounts payable.
Absent an enforceable promise for subcontractors' benefit or actionable fault, failure to exercise that retention right does not itself make the owner liable to unpaid subcontractors. A right to request releases differs from an undertaking owed to those creditors to ensure their payment. The contract must be read before attributing either obligation to the owner.
Worked example: the unpaid electrical invoice
Factual Scenario
Hypothetical. An owner has paid the general contractor for a completed electrical stage. The general contractor spends the money elsewhere and fails to pay the electrician's $26,000 invoice.
Without another legal basis, the electrician's personal debt claim lies against the general contractor. The owner's earlier payment does not extinguish an otherwise valid construction hypothec, but the hypothec is a distinct remedy requiring its own conditions. Nor does the owner's awareness that the electrician was working create a promise to pay the invoice personally.
Third-party benefits and direct payments
A (stipulation pour autrui), under , can create an enforceable benefit for a subcontractor in a contract to which it is not a party. For example, the principal agreement may require the owner to use a defined retained fund to pay unpaid subcontractors. The analysis identifies the promisor, stipulator, beneficiary and exact benefit promised.
Do not infer such a benefit merely from the practical advantage subcontractors receive when an owner monitors payments. Read the clause's wording, purpose and contractual context. A discretion framed with permissive language is not necessarily conclusive either way; the question is whether the agreement creates a right for the third person. A useful written arrangement identifies the beneficiaries, covered claims, trigger, fund and performance owed rather than leaving all elements implicit.
The scope of the benefit also matters. A right to receive payment from a particular retained fund is not automatically an unlimited personal guarantee for the entire subcontract price. A right to insist that the owner retain money differs from a right to immediate direct payment. Establish the contractual preconditions and available amount before calculating the remedy.
Direct payment without an adequate legal arrangement creates a different problem. If the owner pays a subcontractor from money otherwise owed to the general contractor, the owner needs a basis for treating that payment as discharging its own debt. The general contractor's consent, an applicable contractual arrangement or a judicial determination may supply the necessary protection. The unilateral view that a subcontractor deserves payment does not conclusively settle the general contractor's debt or defences.
Suppose a subcontractor claims $40,000 while the contractor disputes $12,000 for correction costs. An owner who simply transfers $40,000 cannot assume that the transfer resolves the subcontract dispute and fully reduces its debt to the contractor. A documented tripartite agreement can specify the admitted amount, application of payment, release and treatment of the disputed balance. Each release should correspond to actual payment and the rights the parties intend to discharge.
Payment after upstream payment
A (clause de paiement sur paiement) connects the contractor's obligation to pay its subcontractor with receipt of payment from the owner. Such clauses are recognized in the ordinary civil framework. Their label does not establish whether they merely delay maturity or transfer the ultimate risk of non-payment. Wording and the parties' common intention determine that classification.
A (terme suspensif) postpones performance by reference to an event treated as certain, though its date may be uncertain. A (condition suspensive) makes the obligation depend on an uncertain event. The difference becomes decisive when the owner will never pay. Financial difficulty alone should not be equated with established permanent non-payment.
If the clause operates as a term, can make performance due when the contemplated event will not occur, at the time it would normally have occurred. If it creates a true condition and fulfilment becomes impossible, governs failure of the condition. The latter classification can leave the subcontractor bearing upstream non-payment risk. An analysis that says only “the owner has not paid” leaves the decisive legal question unanswered.
Worked example: delay compared with transferred risk
Factual Scenario
Hypothetical. A private subcontract states that instalments will be paid after the owner pays the corresponding instalment. The owner later becomes unable to pay any further amount. The subcontractor argues that the clause schedules payment; the contractor argues that receipt was an indispensable condition.
Examine the full agreement, negotiations and allocation of insolvency risk. If it is a term, established permanent failure of the contemplated event can make payment due under the term rules. If it is a true condition, the result can differ. The same commercial phrase should not be treated as an automatic answer in both contracts.
Losing the benefit of a payment clause
addresses the debtor who prevents fulfilment of a condition. A contractor cannot ordinarily rely on non-payment that it caused by failing to submit its payment request, withholding necessary documents or performing the principal contract defectively. The subcontractor must prove the conduct and its effect on upstream payment; alleging that the contractor could have been more persistent is not necessarily enough.
Where the clause is a term, governs loss of its benefit, including the debtor's insolvency or bankruptcy and the other specified grounds. Keep the identities straight: the owner's failure to pay and the general contractor's own insolvency are different facts with different legal consequences. also addresses renunciation of the benefit of the term. Prior payment practices and express commitments may matter, but a single discretionary advance should not automatically be treated as abandonment of the clause for every future invoice.
The clause's application to additional work requires a second classification. Changes accessory to the existing undertaking, or authorized by its terms, normally remain subject to its clauses. Work substantially distinct from or transforming the original undertaking may instead result from a new contract. The earlier payment clause is not automatically part of that new agreement. Keep the change authorization, scope and any adoption of original terms together in the proof.
For prescription, identify when the payment obligation became enforceable. Receipt of upstream payment can be relevant, but so can earlier events defeating the clause. A subcontractor aware that the contractor has prevented payment cannot safely wait indefinitely for a transfer that will never arrive. Contractual maturity, the work's completion and events affecting the clause should each be recorded. Negotiations over the amount do not themselves establish that prescription stopped running.
Oblique action and construction hypothec
An (action oblique) offers a route where the subcontractor's debtor neglects to exercise its own patrimonial rights and that neglect prejudices the subcontractor. Under , the creditor exercises the debtor's right against the owner, subject to the owner's available defences. Its own claim must be certain, liquid and exigible: established in existence, ascertainable in amount and due. Rights exclusively attached to the debtor's person are excluded. This differs from enforcing a direct contractual promise made to the subcontractor.
relaxes the timing of the latter two requirements: the claim must be liquid and exigible at judgment, even if it was not when proceedings began. Accordingly, a dispute about the payment clause and an oblique claim can sometimes be addressed in the same proceedings. The subcontractor must still prove the conditions of each remedy. The owner's liability cannot exceed the right that the contractor actually has merely because the subcontractor's invoice is valid.
Construction security supplies another route. includes subcontractors among the persons potentially entitled to a legal hypothec on the immovable for qualifying work requested by its owner. Under , a person who did not contract directly with the owner must give written notice of its contract; the security is limited to qualifying contributions following that notice and to the increase in value. Workers are exempt from this notice requirement.
Give notice to the actual owner. General awareness of the work, participation in site meetings or inclusion in the contractor's statement does not substitute for the required written notice. Keep proof of content, recipient and delivery. The hypothec's preservation requirements require an independent calendar; waiting for the contractor to collect its invoice does not justify ignoring them. The personal claim can remain valid while security is lost, and valid notice alone does not prove every condition of the hypothec.
Liability to the owner and other participants
expressly place the subcontractor within the construction warranties for work it performed, even without a direct contract with the owner. The first addresses qualifying loss within five years after completion and imposes solidarity; the second addresses poor workmanship existing at acceptance or discovered within the following year and imposes joint liability. The owner must establish the applicable conditions. Warranty periods must be distinguished from prescription for proceedings.
The named professional participants include the architect, engineer and professional technologist according to their direction or supervision of the work. A mere materials supplier does not become an debtor simply by participating economically in the project. Its separate sale and quality obligations may instead govern. Nor does every subcontractor become responsible for every defect: connection to its performed work remains necessary.
Under , the subcontractor may establish that the defect results from the contractor's decisions, professional plans or expert opinions, or qualifying choices imposed by the client. These grounds do not eliminate its own duty to recognize and resist an instruction it knows or should know violates proper workmanship. A contractor's failure to supervise does not ordinarily excuse the subcontractor's own defective execution.
(responsabilité extracontractuelle) can also operate between owner and subcontractor. A breach of the principal contract can constitute a factual source of fault causing injury to the subcontractor, without entitling it to demand pure contractual performance as though it were a party. Conversely, the owner may commit an independently wrongful act without breaching its own agreement. In both cases, establish fault, injury and causation rather than using extra-contractual language to repackage an unpaid invoice.
Worked example: delayed site access
Factual Scenario
Hypothetical. An owner negligently denies promised site access while knowing that a subcontractor's crane and crew are booked. The subcontractor incurs documented standby expenses.
It can examine its contractual recourse against the general contractor and a separate extra-contractual claim against the owner for causally connected loss. The owner is not automatically liable for the whole subcontract price. If the subcontractor could reasonably redeploy equipment after receiving notice, that fact affects the recoverable loss.
A subcontractor can similarly cause the owner or another third person injury through faulty work. For injury to a passerby, the general contractor is not automatically liable merely because the independent subcontractor caused it. The claimant must identify a distinct fault of the general contractor, such as failing its own site-safety responsibility, when relying on that basis. Contractual responsibility toward the owner under and extra-contractual responsibility toward strangers must therefore remain separate.
Practice Checklist
- Map every contract and identify the legal entity owing each obligation.
- Qualify supply, enterprise, representation and employment relationships from the actual undertaking.
- Prove scope, changes, performance, amount and maturity before asserting payment.
- Distinguish a retention right, a third-party benefit, direct payment and a personal guarantee.
- Classify any payment clause as a term or condition and examine conduct defeating its benefit.
- Preserve written construction notice and security deadlines independently of invoice collection.
- Select the contractual, statutory, oblique or extra-contractual route and prove its separate requirements.
Check your understanding
Two short exercises before you move on: reason through the lesson’s worked examples, then recall its key terms from memory.
Apply the rules
Each worked example gives the facts first and keeps its analysis closed. Decide the outcome, then open the analysis to compare.
Active recall
1 / 11Formulate your answer before revealing the definition. Your self-assessment schedules a review; it does not measure mastery.
Subcontracting
Sous-traitance
How would you define this concept? Which conditions or limits matter?
Glossary
- Extra-contractual liabilityResponsabilité extracontractuelle
- Liability for wrongful injury governed by duties outside the parties’ contractual relationship.
- MandateMandat
- A contract conferring authority to represent another person in juridical acts.
- Oblique actionAction oblique
- An action through which a creditor exercises patrimonial rights neglected by its debtor.
- Payment-on-payment clauseClause de paiement sur paiement
- A clause connecting a subcontract payment obligation to payment under an upstream contract.
- Relative effect of contractsEffet relatif des contrats
- The principle that contractual rights and obligations ordinarily bind the contracting parties.
- Statutory holdbackRetenue légale
- A statutory entitlement to retain part of an otherwise payable price for a defined protective purpose.
- Stipulation for anotherStipulation pour autrui
- A contractual promise creating a benefit enforceable by an identified or determinable third person.
- SubcontractingSous-traitance
- The entrusting of all or part of an existing undertaking to another enterprise.
- SubcontractorSous-entrepreneur
- An enterprise engaged by another contractor to perform part or all of that contractor’s undertaking.
- Suspensive conditionCondition suspensive
- A modality making an obligation depend on an uncertain event.
- Suspensive termTerme suspensif
- A modality postponing performance to an event treated as certain.
References and Further Reading
- Civil Code of Québec, official consolidation,
- JurisClasseur Québec, collection « Droit civil », Contrats nommés II, , « Contrat de sous-traitance », paras. 1–30, including para. 20.1.
- JurisClasseur Québec, collection « Droit civil », Contrats nommés II, , « Dispositions particulières aux contrats d'entreprise : règles applicables aux ouvrages mobiliers et à la construction d'immeubles », paras. 5, 12 and 17–27.
- JurisClasseur Québec, collection « Droit civil », Contrats nommés II, , « Responsabilité légale des professionnels et entrepreneurs de la construction », paras. 7–27, 51–55 and 76–100.
- Termination of enterprise and service contracts, for ending the subcontract and determining the financial consequences.