SUBJECT: The Concept of ‘The Solidarity Liability’ of the Principal and the Contractor

I. Introduction

This memorandum exhaustively examines the concept of solidary liability between the principal and the contractor or subcontractor under Philippine labor law. The doctrine addresses situations where work is farmed out through a contracting arrangement, and the workers of the contractor are not paid their lawful wages and benefits. The core principle is that the principal, as the indirect employer who ultimately benefits from the labor, may be held jointly and severally liable with the direct employer (the contractor) for the workers’ rightful claims. This analysis will cover the legal bases, jurisprudential evolution, essential conditions, exceptions, procedural rules, and comparative perspectives.

II. Statement of the Issue

The central issue is: Under what circumstances may a principal be held solidarily liable with its contractor or subcontractor for the labor law violations committed against the latter’s employees?

III. Legal Bases and Statutory Framework

The primary statutory anchor is Article 106 of the Labor Code of the Philippines (Presidential Decree No. 442, as amended), which states:
> “Article 106. Contractor or subcontractor. — Whenever an employer enters into a contract with another person for the performance of the former’s work, the employees of the contractor and of the latter’s subcontractor, if any, shall be paid in accordance with the provisions of this Code.
> In the event that the contractor or subcontractor fails to pay the wages of his employees in accordance with this Code, the employer shall be jointly and severally liable with his contractor or subcontractor to such employees to the extent of the work performed under the contract, in the same manner and extent that he is liable to employees directly employed by him.
> …”
This provision is implemented by Department Order No. 174-17 (Rules Implementing Articles 106 to 109 of the Labor Code). Furthermore, Article 107 establishes the same solidary liability chain between the principal, the contractor, and the subcontractor. Article 109 makes the provisions on solidary liability applicable even to cases where the contractor or subcontractor is engaged in “labor-only contracting.”

IV. Jurisprudential Evolution and Doctrinal Foundation

The Supreme Court has consistently upheld and refined the doctrine. In De los Santos v. National Labor Relations Commission, the Court held that Article 106 creates a statutory employer-employee relationship between the principal and the contractor’s employees for a limited purpose—to ensure that the employees receive their due wages and benefits. The liability is solidary, meaning the aggrieved employee may enforce the entire obligation against either the principal or the contractor. The principal’s liability is not primary but is triggered by the failure of the direct employer. The landmark case of San Miguel Corporation v. Maerc Integrated Services, Inc. emphasized that this liability is an exception to the general rule of separate corporate personality, rooted in the constitutional mandate to afford full protection to labor.

V. Essential Conditions for Solidary Liability

For solidary liability under Article 106 to attach, the following conditions must concur:

A contract exists between a principal and a contractor or subcontractor for the performance of a specific job, work, or service.

The contractor’s employees are engaged in performing activities which are directly related to the main business of the principal or are integral thereto (as defined under the control test and the economic reality test in labor-only contracting scenarios).

The contractor or subcontractor fails to pay the wages or benefits of its employees as mandated by the Labor Code and other relevant laws.

The claim of the employees is limited to the extent of the work performed under the contract between the principal and the contractor.

VI. Exceptions and Defenses for the Principal

The principal may avoid solidary liability by proving any of the following:

The contractor is a legitimate job contractor. Under Department Order No. 174-17, a legitimate contractor must possess substantial capital, investment, tools, and the right to control over the performance of the work of its employees. If the principal engages a legitimate contractor, the general rule is that there is no employer-employee relationship between the principal and the contractor’s workers, and the principal is not solidarily liable for claims unless the contractor fails to pay, triggering Article 106.

The claim is not based on work performed under the contract. The principal’s liability is co-extensive only with the work farmed out under the specific service agreement.

The principal has already fully paid the contractor the contract price corresponding to the employees’ wages. However, mere payment to the contractor is not an automatic shield; the principal must exercise due diligence in ensuring the contractor is financially capable and compliant with labor laws. The defense of good faith in selecting a legitimate contractor may mitigate but not absolutely extinguish liability.

The existence of a trilateral relationship under a permissible job contracting arrangement, where the contractor is the sole employer.

VII. Comparative Analysis: Solidary Liability vs. Direct Liability

The following table distinguishes solidary liability under a contracting arrangement from scenarios where the principal is found to be the direct employer.

Aspect	Solidary Liability under Art. 106 (with a Contractor)	Direct Employer-Employee Relationship
Legal Basis	Article 106 and 107 of the Labor Code; statutory imposition.	Article 280 (Regular Employment) and the four-fold test (control test, payment of wages, power of dismissal, selection and engagement).
Nature of Relationship	Statutory and subsidiary; relationship exists only for enforcing wage claims.	Contractual and direct; a full employer-employee relationship exists.
Trigger for Liability	Failure of the direct employer (contractor) to pay lawful compensation.	Violation of labor standards committed by the principal itself as the employer.
Liability Scope	Joint and several (solidary) with the contractor, but limited to work performed under the contract.	Primary, direct, and unlimited for all aspects of employment (wages, benefits, separation pay, etc.).
Typical Scenario	Legitimate or illegitimate contracting where the contractor is financially unable to satisfy awards.	Labor-only contracting, where the principal is deemed the direct employer because it controls the worker or the contractor lacks independence.
Proof Required from Worker	Proof of work performed for the principal and non-payment by the direct employer.	Proof of the four elements of the employer-employee relationship, particularly the right of control.
Effect on Worker Status	Does not automatically make the worker a regular employee of the principal.	The worker becomes a regular employee of the principal, entitled to security of tenure.

VIII. Procedural Implications in Claims Recovery

In practice, the solidary liability doctrine has significant procedural consequences:

Joinder of Parties: Complainants should implead both the contractor and the principal as respondents to ensure complete relief.

Execution of Judgment: A writ of execution may be enforced against the assets of either the principal or the contractor, at the option of the worker. The principal that satisfies the judgment has a right of reimbursement from the contractor.

National Labor Relations Commission (NLRC) Jurisdiction: Labor Arbiters have jurisdiction over money claims arising from employer-employee relations, which includes claims against a principal under the statutory relationship created by Article 106.

IX. Policy Rationale and Social Justice Imperative

The doctrine is a legislative and judicial mechanism to prevent circumvention of labor laws. It recognizes the economic reality that the principal is the ultimate beneficiary of the labor and is often in a better financial position than an undercapitalized contractor. It places a burden of diligence on principals to engage only reputable and compliant contractors. This aligns with the constitutional principles of social justice and the state’s duty to afford full protection to labor, ensuring that workers are not left without recourse due to the insolvency or disappearance of their immediate employer.

X. Conclusion and Recommendations

The solidary liability of the principal under Article 106 is a well-established, critical doctrine in Philippine labor law designed to protect workers’ right to security of tenure and monetary benefits. It applies when a contractor fails to pay its employees for work performed for the principal. While principals can mitigate risk by engaging legitimate job contractors, they cannot completely insulate themselves from liability if the contractor defaults. To minimize exposure, principals must: (1) conduct rigorous due diligence on contractors’ legitimacy and financial health; (2) include indemnity clauses in service agreements; (3) monitor contractors’ compliance with labor standards; and (4) ensure that contract payments are timely and sufficient to cover wage obligations. In litigation, the principal will be a proper party, and its liability, while secondary in nature, is solidary in effect.