Before choosing a contractor agreement, decide how the work will actually be performed. Under Mexico’s Federal Labor Law, a work relationship turns on personal subordinated work in exchange for wages—not the label on a contract. A separate analysis is needed if a vendor will make workers available to your business: Mexico prohibits personnel subcontracting and permits qualifying specialized services or works only under specified conditions, including provider registration with REPSE.
How Mexican law distinguishes a contractor from an employee
The central test is subordination
Article 20 of Mexico’s Federal Labor Law defines a work relationship as “la prestación de un trabajo personal subordinado a una persona, mediante el pago de un salario”—personal subordinated work for another person in exchange for wages—whatever act gave rise to it. The law focuses on the relationship’s substance, so calling someone a contractor or signing a services agreement does not, by itself, establish independent status. Read Article 20 and the subcontracting provisions of the Federal Labor Law.
Assess how the engagement will operate
Before drafting, document the service, expected outputs, timing, work location, tools, whether the person can serve other clients, and how your business will direct or review the work. These are useful facts to examine, not a statutory checklist or a formula that guarantees contractor status. A 2024 overview by Mexican law firm Creel Abogados identifies factors such as a set schedule, required workplace attendance, employer-provided tools and fixed, consistent compensation as features that may support employee classification; they are examples in secondary commentary, not a complete legal test. See its 2024 overview of employment and employee benefits in Mexico.
Compare the two main routes
| Question | Genuinely independent service | Employee-like relationship |
|---|---|---|
| How is the work organized? | A defined service or deliverable is performed independently in practice; the agreement and management approach should reflect that arrangement. | The person performs personal work under the business’s subordination for wages; a contractor label does not change the underlying facts. |
| What should the business do? | Use a written services agreement suited to the work and manage the engagement consistently with it. | Treat local employment as the working assumption and seek Mexico-specific employment and tax advice about local registration and payroll arrangements. |
| Does REPSE apply? | Not automatically because a person is called a contractor or consultant; assess whether the separate specialized-services rules are triggered. | Employment classification is a separate issue from whether a vendor is supplying workers under the subcontracting rules. |
The legal definition comes from the Federal Labor Law; REPSE scope is described in STPS guidance.
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When REPSE and specialized-services rules apply
Distinguish personnel subcontracting from a permitted specialized service
Mexico prohibits personnel subcontracting: providing or making one party’s workers available for another party’s benefit is not made permissible merely by using a vendor or calling the arrangement consulting. The law allows specialized services or works only when they do not form part of the beneficiary’s corporate purpose or predominant economic activity, and the provider has registration in the Public Registry of Specialized Service Providers or Works (REPSE). The 2021 reform decree sets out the statutory conditions. The Secretaría del Trabajo y Previsión Social (STPS) says its registration requirement applies when a provider makes its own workers available for a third party’s benefit in a workplace owned, administered or controlled by the beneficiary; its guidance also addresses qualifying intra-group services. Check the actual service, worksite and registered activity against the REPSE portal and guidance.
Do not assume that every independent professional needs REPSE, or that every consulting arrangement is outside the rules. The relevant question is how the service is delivered and whether the provider’s workers are made available to the beneficiary in the circumstances described by STPS.
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Check the contract and provider conditions
For a covered specialized service or work, the written agreement must state its object and the approximate number of workers who will participate. The statute also provides for possible joint liability of the beneficiary for the provider’s labor obligations. Before signing, verify current REPSE registration and that its registered activity corresponds to the contracted service; document the worker count and service; and agree on evidence, reporting and cooperation arrangements. The provider must be current on tax and social-security duties for registration. These requirements and risks appear in the reform decree and STPS guidance.
STPS and SAT have warned that covered services provided without required current registration may lead to tax and labor sanctions, and that payments for them are not deductible or creditable. See their notice on prohibited personnel subcontracting.
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A practical hiring workflow
1. Define the service and working arrangement
Write down what the person or vendor will do, what outputs are expected, when and where the work will happen, who provides tools, whether the worker may serve other clients, and who directs or reviews the work. Use this information to assess the actual relationship, rather than choosing a contract label first.
2. Select the route that matches the facts
If you expect to direct the individual’s work as an employee, proceed on that working assumption and get Mexican advice on employment, tax, local registration and payroll arrangements. If the service is genuinely independent, use an agreement that defines the service rather than disguising an employee-like role. If a vendor will supply or make workers available in the beneficiary’s workplace, resolve the specialized-services and REPSE questions before the work begins.
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3. Put the independent service in writing
For a genuinely independent engagement, a practical agreement should describe the scope and deliverables, fees and payment terms, term, confidentiality, ownership or permitted use of intellectual property, and workable termination and dispute terms. These are prudent drafting topics, not a statutory checklist that guarantees independent status. Make sure day-to-day management follows the arrangement the agreement describes.
4. Assign covered-service administration
For a covered specialized-services provider, decide who will handle the IMSS contract report, by when, and how each party will retain evidence of filing. IMSS’s ICSOE overview describes periodic reporting of specialized-services or works contracts by four-month period. Confirm the current filing requirements for the particular parties and engagement.
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Tax, invoicing and cross-border issues to check
Paying from outside Mexico does not settle worker classification, Mexican tax treatment or the foreign business’s obligations. Article 14 of Mexico’s VAT Law defines independent services in a way that excludes subordinated work; that distinction reinforces why employment status should be resolved on the facts. See SAT’s text of Article 14.
SAT Rule 2.7.1.23 identifies XEXX010101000 as a generic RFC key for certain transactions with foreign residents not registered in Mexico and addresses certain payroll CFDIs issued by Mexican providers serving foreign residents. That is a specific invoicing rule, not a general answer to whether a foreign business must register, withhold tax, charge or recover VAT, or has a Mexican permanent establishment. Check the current rule and the transaction with a Mexican tax professional: SAT Rule 2.7.1.23.
The answer for an individual engagement can also depend on the foreign company’s country and Mexican presence, the worker’s tax residence and location, the service, duration, and any immigration or treaty questions. The labor and administrative rules above do not resolve those facts for every foreign business.
Manage the relationship after onboarding
Review the actual working arrangement when it changes. For example, reassess if a defined project becomes ongoing staff work or the business begins setting employee-like schedules, requiring attendance or supplying all work tools. Such features may be relevant indicators in the secondary commentary cited above, but no one feature is a complete classification test. If the facts shift, get Mexican labor and tax advice and update the engagement route and administration as appropriate.
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