When Does a Foreign Company Create a Permanent Establishment in Mexico?
- Manuel Mansilla Moya
- 6 days ago
- 17 min read
A foreign company wants to enter Mexico.
The initial plan looks simple: keep the foreign company in place, sell to Mexican customers from abroad, hire one person in Mexico, and have the contracts signed by headquarters.
No Mexican subsidiary. No branch. No local corporation.
At first glance, there may seem to be little to structure.
That assumption can be expensive.
For Mexican tax purposes, not incorporating a Mexican company does not necessarily mean that a foreign company has no taxable presence in Mexico. A permanent establishment can arise from the way a business operates in the country, even without a Mexican subsidiary.
And permanent establishment is only part of the analysis. A foreign company may have Mexican tax obligations without having a permanent establishment, while having a permanent establishment does not, by itself, make the foreign company a Mexican tax resident.
For a foreign executive deciding how to enter the Mexican market, the better question is therefore not:
“Do we have a Mexican company?”
It is:
“What will our business actually be doing in Mexico, through whom, and under what structure?”
That question is worth answering before the operating model becomes difficult to unwind.
Why Permanent Establishment Matters to the Business
Permanent establishment is a tax concept. Its consequences, however, reach well beyond a tax return.
The financial side
Under the Mexican Income Tax Law (Ley del Impuesto sobre la Renta, or LISR), a foreign resident with a permanent establishment in Mexico is generally subject to Mexican income tax on income attributable to that establishment.
That can bring with it tax registration, accounting, invoicing and filing obligations, together with the cost of building the compliance infrastructure needed to support them.
There may also be consequences for the Mexican customer.
This is particularly relevant when a Mexican company pays a foreign company for services performed in Mexico. If the foreign company's activities are subsequently determined to constitute a Mexican PE, the customer may face questions concerning the tax treatment and documentation of the transaction. The issue has received particular attention in cross-border service arrangements.
So PE analysis is not necessarily a matter between the foreign company and the Mexican tax authorities alone. It can affect the commercial relationship on the other side of the invoice.
The operational side
Once a company has a Mexican PE, it cannot continue treating Mexico as an informal extension of its foreign headquarters.
Its Mexican activities may need to be reflected in its tax, accounting and contractual arrangements. Intercompany transactions may require closer attention. Personnel, invoicing and local compliance may need to be reorganized.
The practical problem is often not the existence of the tax obligation itself.
It is discovering it after the business has already been built around a different assumption.
The transaction side
PE issues can become particularly uncomfortable during an investment, financing, acquisition or sale.
A buyer conducting tax diligence may ask a straightforward question:
“The company has had employees, customers, contractors or operations in Mexico for several years. How was its Mexican tax position addressed?”
If the answer requires reconstructing the company's activities year by year, the issue has become a transaction risk.
That is why PE planning belongs in the market-entry conversation—not in the cleanup exercise afterward.
First, Separate PE From Mexican Tax Residence
There is an important distinction that often gets lost in cross-border discussions.
Permanent establishment and tax residence are not the same thing.
Mexican domestic rules address corporate tax residence separately, including by reference to the company's principal center of administration or effective place of management. Tax treaties can also affect the analysis.
A foreign company can therefore have a Mexican PE without becoming a Mexican-resident corporation.
The reverse point is equally important: not having a PE does not mean that a foreign company has no Mexican tax obligations.
Mexican-source income, withholding, VAT and other rules can apply independently of PE status. The Mexican tax system expressly contemplates foreign residents receiving Mexican-source income, and the applicable treatment depends on the nature of that income and the relevant statutory or treaty provisions.
For an executive, the practical takeaway is simple:
PE is not the yes-or-no test for all Mexican tax exposure.
The first exercise should be to map the company's overall Mexican tax position. PE is one of the questions within that exercise.
What Creates a Permanent Establishment in Mexico?
The Mexican Income Tax Law provides the starting point.
Broadly speaking, a PE may arise when a foreign resident has a place of business in Mexico through which it conducts business activities, in whole or in part, subject to the statutory rules and exceptions.
It can also arise through certain persons acting on behalf of the foreign enterprise.
That produces two major areas of analysis:
fixed place of business; and
dependent-agent activity.
The applicable tax treaty, if there is one, must then be reviewed because treaty provisions can modify the domestic-law result. Mexico maintains an extensive network of tax treaties, and the SAT publishes the treaties in force.
1. A Fixed Place of Business
The classic PE is the easiest to understand.
A foreign company has a physical presence in Mexico through which it conducts its business.
The LISR expressly contemplates locations such as branches, agencies, offices, factories and workshops, among others.
But the analysis does not begin and end with the word “office.”
A small office can be significant if it is where the foreign company's business is actually conducted. Conversely, certain activities that are genuinely preparatory or auxiliary may fall within statutory exceptions.
That is why the function of the location matters.
Consider the difference between:
a location used only for a limited auxiliary storage function; and
premises where employees manage Mexican customers, negotiate transactions and conduct the foreign company's core commercial activities.
Calling both locations a “warehouse” would not make them equivalent.
The tax analysis follows the substance of the operation.
2. A Person Acting for the Foreign Company
The second route is often more relevant to modern international businesses.
A foreign company does not necessarily need its own Mexican office to face PE exposure.
Mexican law addresses circumstances in which a person in Mexico acts for the foreign resident and is not sufficiently independent. The rules are particularly important where that person habitually concludes contracts on behalf of the foreign company or habitually plays the principal role leading to contracts that the foreign company routinely concludes without material modification.
This can bring sales representatives, business-development personnel and other commercial representatives into the analysis.
And there is an important practical point here.
The place where the final contract is signed is not necessarily the place where the relevant business activity occurred.
A company cannot necessarily solve a PE problem by reserving the final signature for its headquarters abroad if the substantive commercial process is being carried out in Mexico.
The sales process matters.
Who found the customer?
Who negotiated the material terms?
Who discussed pricing?
Who made the commercial commitments?
Who brought the customer to the point of signing?
Those facts can matter more than the location of the signature page.
The Independent-Agent Question
Not every Mexican distributor, consultant or contractor creates a PE.
The distinction between an independent agent and a dependent agent is therefore central.
Mexican law contains specific rules for determining when a person acting for a foreign resident cannot be treated as independent. Among other things, the law addresses circumstances involving persons acting exclusively or almost exclusively for related foreign residents.
That makes contractual labels a poor substitute for analysis.
A document may call someone an:
independent contractor;
consultant;
distributor; or
commercial representative.
That is relevant, but it is not conclusive.
The more useful questions are operational:
Who controls the person's work?
Who bears the commercial risk?
Who determines pricing?
Who owns or controls inventory?
Does the person represent other businesses?
How much discretion does the person actually have?
Can the person negotiate material terms?
Does the person routinely perform functions central to the foreign company's business?
Is the relationship genuinely independent in practice?
The answer should be based on the relationship as it operates—not simply on what the contract calls it.
The 183-Day Rule: The Number That Causes Too Much Confidence
There is perhaps no number more frequently misused in international tax than 183.
A foreign executive may hear:
“Stay in Mexico for fewer than 183 days and you are fine.”
A company may make a similar assumption about its employees.
That is not a reliable way to analyze Mexican PE exposure.
There are several different 183-day concepts, and they address different legal questions.
The Mexican domestic-law 183-day rule
Mexican domestic law contains a specific 183-day rule for certain construction, demolition, installation, maintenance and assembly activities involving real property, as well as related projection, inspection and supervision activities.
For these activities, the LISR generally looks at whether the relevant activities exceed 183 calendar days, consecutive or not, within a twelve-month period. Certain subcontractor activity can also be relevant to the calculation.
This is important for construction and industrial projects.
It is not a general safe harbor for doing business in Mexico.
A foreign company selling products in Mexico does not become automatically protected from PE merely because its salesperson has spent 182 days in the country.
The treaty 183-day rule is a different question
Many Mexican tax treaties contain a 183-day test concerning employment income.
Under the standard treaty framework, an employee may potentially avoid host-country taxation where the applicable conditions are satisfied, including the relevant day-count threshold, the identity and residence of the employer, and whether remuneration is borne by a PE or fixed base in the host country.
But the precise wording matters.
The relevant period may be a calendar year, a fiscal year or a rolling twelve-month period, depending on the treaty. The rules for counting days also matter.
Most importantly:
The treaty 183-day employment test is not the corporate PE test.
One does not answer the other.
A company should therefore not conclude that it has no PE because an employee spent fewer than 183 days in Mexico.
And an employee should not assume that fewer than 183 days automatically means no Mexican individual income-tax exposure.
The treaty has to be read as a whole.
Count days. But also understand what happened on those days.
For internationally mobile personnel, sophisticated companies track two things:
days and activities.
A travel calendar might show that an executive spent 80 days in Mexico.
It does not tell you whether those 80 days were spent:
meeting customers;
negotiating contracts;
managing Mexican employees;
supervising a project;
providing services;
attending internal meetings; or
performing merely preparatory functions.
That distinction can matter.
The 183-day threshold is therefore a useful compliance metric. It is not a substitute for understanding the business activity taking place in Mexico.
A Practical Mexican PE Risk Assessment
There is no single fact that answers the PE question.
Risk tends to become more significant as the Mexican operation takes on characteristics of an actual part of the foreign company's business.
Look carefully when several of these facts are present:
personnel regularly work from Mexico;
Mexican personnel negotiate or materially influence customer contracts;
local personnel habitually play the principal role leading to contracts;
the foreign company maintains a fixed location in Mexico;
the location is used for core rather than merely auxiliary activities;
services are physically performed in Mexico;
inventory is maintained locally as part of an active commercial operation;
construction or installation projects extend over time;
a local representative is economically or operationally dependent on the foreign company;
Mexican personnel exercise meaningful decision-making authority; or
the Mexican operation has evolved from a limited market-entry exercise into an established part of the company's business.
None of these facts, standing alone, should be treated as an automatic PE trigger.
The point is different.
The more of them that accumulate, the less credible a purely formal analysis becomes.
At some point, statements such as these stop being particularly helpful:
“We don't have a Mexican subsidiary.”
“The contractor is independent.”
“The contract was signed in the U.S.”
“Nobody stayed more than 183 days.”
Those may all be relevant facts, but they are not the conclusion.
Common Mistakes Foreign Companies Make
1. “We don't have a Mexican subsidiary, so we don't have a Mexican tax presence.”
A subsidiary is a corporate vehicle.
A PE is a tax concept.
They are not interchangeable.
A foreign company can have Mexican tax obligations without incorporating locally, including through Mexican-source income rules or a PE.
2. “All contracts are signed outside Mexico.”
That may not settle the issue.
If a person in Mexico is doing the substantive commercial work that leads to the contract, the location of the final signature may provide less protection than the company assumes.
3. “Our Mexican representative is an independent contractor.”
Perhaps.
But that needs to be established from the actual relationship, not merely from the title in the agreement.
4. “Nobody spends more than 183 days in Mexico.”
That statement tells you one thing.
It does not tell you everything.
First determine which 183-day rule is being invoked. Then determine whether its conditions are actually satisfied.
5. “Remote work cannot create a PE because there is no office.”
The absence of a traditional office does not automatically end the analysis.
Remote work raises a different set of factual questions: what the employee does, whose business is being conducted, the nature of the work location, the employee's authority, and the applicable domestic and treaty provisions.
6. “We will solve the tax structure once the business is established.”
That is often backwards.
Once employees have been hired, contracts signed, equipment imported and customers acquired, restructuring becomes harder.
A market-entry structure is easier to design before the business has accumulated years of operating history.
7. “Our manufacturing operation is just another version of our sales operation.”
It is not.
Manufacturing introduces another layer of issues involving machinery, inventory, imports, intercompany arrangements, transfer pricing, customs and potentially IMMEX or maquiladora rules.
Certain manufacturing structures can receive specific PE treatment when the statutory and treaty requirements are satisfied. Those requirements should be reviewed before the operation is implemented, not assumed from the label attached to it.
What Should a Foreign Executive Do?
The answer depends on the business model.
Selling into Mexico from abroad
Start with the company's Mexican-source income, withholding, VAT and treaty position.
Do not assume that the absence of Mexican personnel means there are no Mexican tax consequences.
Hiring Mexican sales personnel
Review the sales process before making the hire.
Who negotiates?
Who sets commercial terms?
Who has authority?
Who moves the customer toward signature?
If the Mexican employee will be central to closing business for the foreign enterprise, the PE analysis should happen before the operating model is fixed.
Appointing a Mexican distributor
Test whether the distributor is genuinely independent.
Examine exclusivity, control, economics, pricing, inventory and contractual authority.
The objective is not to manufacture “independence” on paper. It is to determine whether the relationship is actually independent.
Allowing foreign employees to work from Mexico
Track both days and activities.
Then analyze separately:
individual tax;
payroll;
employment;
immigration;
corporate PE; and
treaty issues.
The 183-day number should be part of the analysis—not the whole analysis.
Providing services in Mexico
Determine where the work is physically performed, who performs it, how long the project lasts and what the applicable treaty says.
Service activities deserve particular care because the domestic-law and treaty analyses do not necessarily ask exactly the same question.
Manufacturing in Mexico
Do not treat PE as an isolated tax issue.
The structure should be considered alongside:
corporate organization;
customs;
IMMEX or maquiladora rules;
transfer pricing;
intercompany agreements;
labor;
VAT; and
supply-chain design.
Building a substantial Mexican operation
At some point, the question changes.
Instead of asking:
“How do we avoid a PE?”
the company may need to ask:
“What Mexican structure makes sense for the business we are actually building?”
That could mean a Mexican subsidiary, branch or another properly structured model.
There is nothing inherently wrong with having a Mexican taxable presence.
An appropriately structured Mexican operation may be much better for the business than an artificial arrangement designed solely to avoid one.
The Point Is Not to Avoid Mexico
This is where PE planning is often misunderstood.
The objective should not be to eliminate every possible Mexican tax consequence.
The objective is to make sure the legal structure, tax position and commercial reality fit together.
Suppose a company wants to build a substantial Mexican sales operation.
It might spend considerable time designing contracts intended to keep the foreign company outside Mexico for tax purposes. But if its Mexican team is nevertheless negotiating with customers every day, managing relationships and driving revenue, the structure may be fighting the business rather than supporting it.
At that point, the better answer may be to formalize the Mexican presence.
That is not a failure of tax planning.
It may be good business planning.
The right structure depends on what the company wants Mexico to become.
What Sophisticated Companies Do Differently
Sophisticated companies do not begin with:
“Can we avoid creating a PE?”
They begin with:
“What will our Mexican business actually look like?”
Then they map the operating model.
People
Who will physically be in Mexico?
Activities
What will they actually do?
Authority
Who can negotiate, approve or conclude contracts?
Premises
Where will people work?
Customers
Where will customer relationships be managed?
Inventory
Where will products be stored, and who controls them?
Services
Where will services actually be performed?
Projects
How long will construction, installation or other projects continue?
Intercompany arrangements
Which entity will perform each function and bear each risk?
Treaty position
Is the foreign company entitled to treaty benefits, and if so, what does the relevant treaty say about PE?
This exercise often produces a more useful answer than a purely doctrinal review.
Sometimes the conclusion is that the foreign company can operate in Mexico without establishing a PE.
Sometimes the conclusion is that the structure needs to change.
And sometimes the conclusion is that the company should simply establish a Mexican operation and manage the resulting tax obligations properly.
All three can be successful outcomes.
PE Planning Should Change as the Business Changes
A company's Mexican tax analysis should not be frozen on the day it enters the market.
The business may start with foreign headquarters selling directly into Mexico.
Then comes the first Mexican employee.
Then a sales team.
Then customer support.
Then inventory.
Then local management.
Then servicing.
Then manufacturing.
The company may still have the same foreign parent and the same corporate name.
But it no longer has the same Mexican footprint.
That is why PE analysis belongs alongside the company's broader growth strategy.
It can intersect with:
employment and international personnel mobility;
cross-border service agreements;
intercompany arrangements;
transfer pricing;
manufacturing;
supply chains;
tax compliance;
financing;
investment due diligence;
acquisitions; and
exit planning.
A structure that made sense when Mexico represented a small experiment may make little sense once Mexico becomes one of the company's principal markets.
The question evolves.
At first:
“Can we sell into Mexico?”
Then:
“Are our Mexican activities creating a taxable presence?”
Eventually:
“What structure should we have for the Mexican business we are building?”
Good legal planning anticipates that progression.
The Bottom Line
A foreign company does not create a permanent establishment in Mexico merely because an employee travels to the country.
But neither does it automatically avoid a PE because:
it has no Mexican subsidiary;
contracts are signed abroad;
personnel are called independent contractors; or
employees spend fewer than 183 days in Mexico.
PE is a fact-driven legal and tax analysis.
The important questions are practical:
Where is the business actually being conducted?
Who is conducting it?
Who negotiates with customers?
Who has authority?
What happens at the Mexican location?
What functions are performed locally?
How long do relevant projects last?
Are the activities core to the business or genuinely auxiliary?
What does Mexican domestic law provide?
And does an applicable tax treaty change the result?
Just as importantly, PE is only one piece of the puzzle. A foreign company may have Mexican tax obligations without having a PE, and a PE should not automatically be confused with Mexican tax residence.
For a foreign company entering Mexico, the best time to answer these questions is before the operating model becomes difficult to change.
Understand the Mexican footprint before you build it.
If your company is entering Mexico, hiring personnel here, appointing local representatives, providing services, establishing a manufacturing operation or materially expanding its Mexican activities, UPLAW can conduct an initial assessment of the proposed or existing operating model and identify the principal Mexican legal and permanent-establishment considerations.
This is particularly relevant for companies making a substantive market-entry or expansion decision—not simply looking for a generic answer to a tax question.
The objective is straightforward: make sure the structure matches the business you are actually building in Mexico.
Request an initial assessment with us here.
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Frequently Asked Questions
What is a permanent establishment in Mexico?
A permanent establishment is a taxable presence through which a foreign resident conducts business in Mexico. Under Mexican domestic law, it can arise through a fixed place of business or, in certain circumstances, through a person acting on behalf of the foreign enterprise. An applicable tax treaty may modify the domestic-law analysis.
Does a foreign company need a Mexican subsidiary to do business in Mexico?
No. A foreign company can conduct certain activities in Mexico without incorporating a subsidiary. However, the absence of a Mexican entity does not eliminate Mexican tax obligations and does not, by itself, prevent a permanent establishment from arising.
Can a Mexican employee create a permanent establishment for a foreign company?
Potentially. The employee's actual functions and authority matter. Particular attention should be given to employees who habitually conclude contracts or play the principal role leading to contracts on behalf of the foreign enterprise.
Does signing contracts outside Mexico prevent a permanent establishment?
No. The location of the final signature is not necessarily decisive. Activities carried out in Mexico during the negotiation and process leading to contracts can be relevant to the dependent-agent analysis.
Does staying in Mexico for fewer than 183 days prevent a permanent establishment?
No, not as a general rule.
Mexico's domestic 183-day rule applies to specified construction, demolition, installation, maintenance, assembly and related activities. Separately, tax treaties may contain 183-day provisions concerning employment income. These are different rules and should not be treated as a universal PE safe harbor.
Is the 183-day rule the same under every Mexican tax treaty?
No. The applicable period, counting methodology and additional conditions vary by treaty. Some treaties use a calendar-year test, while others use a rolling twelve-month period. The specific treaty between Mexico and the relevant foreign jurisdiction should be reviewed.
Can a foreign company have a PE without an office in Mexico?
Yes. A permanent establishment can potentially arise through the dependent-agent rules even where the foreign company does not maintain a conventional office in Mexico.
Can an independent contractor create a permanent establishment?
Potentially. The contractual label is not determinative. Mexican law contains specific rules concerning when a person acting for a foreign resident may not qualify as an independent agent. The actual relationship should be reviewed.
Can a distributor create a permanent establishment?
Potentially. A genuinely independent distributor acting in the ordinary course of its business is different from a person or entity that falls within the dependent-agent rules. Independence should be assessed based on the actual relationship.
Can remote work from Mexico create a permanent establishment?
Potentially, depending on the circumstances.
The absence of a traditional office does not automatically eliminate PE exposure. The employee's functions, the nature of the work location, the employee's authority, the relationship with the foreign enterprise and the applicable domestic and treaty rules all matter.
Can a foreign company have Mexican tax obligations without a PE?
Yes.
PE is only one category of Mexican tax exposure. Mexican-source income, withholding, VAT and other rules can apply to foreign residents independently of whether a PE exists.
Does having a PE make a foreign company a Mexican tax resident?
Not necessarily.
PE and tax residence are separate concepts. Mexican domestic law applies different rules to determine corporate tax residence, and an applicable tax treaty may also affect the analysis.
Should a foreign company try to avoid creating a PE?
Not necessarily.
If the company intends to build a substantial Mexican business, a properly structured Mexican presence may be preferable to maintaining an increasingly complicated cross-border arrangement.
The strategic question is not simply whether a PE can be avoided. It is whether the company's structure is appropriate for its Mexican activities, tax position, operational requirements and growth plans.
When should a foreign company conduct a PE assessment?
Ideally, before hiring Mexican personnel, appointing local representatives, signing major customer contracts, establishing premises, beginning substantial service activities or commencing manufacturing operations.
A review is also appropriate when an existing Mexican operation changes materially.
Further Reading
Mexican Law and Tax Administration
Ley del Impuesto sobre la Renta — Cámara de Diputados
The principal Mexican statute governing income taxation, including permanent-establishment rules.
SAT — Tratados en materia fiscal y cuestiones relacionadas
Official Mexican tax authority resources concerning Mexico's tax treaties and related matters.
Corporate Residence and Permanent Establishment
PwC Tax Summaries — Mexico: Corporate Residence
Overview of Mexican corporate residence and PE rules, including fixed places of business, dependent agents and treaty considerations.
Cross-Border Services
International Tax Review — Understanding Mexican PE Risks from Services Rendered by Foreign Resident ContractorsPractical discussion of PE exposure in cross-border service arrangements and the consequences for Mexican counterparties.
Manufacturing and Nearshoring
Prodensa — Manufacturing in Mexico: Understanding Permanent EstablishmentDiscussion of PE considerations for foreign companies establishing manufacturing operations in Mexico.
Mexican PE Triggers
Braccini & Partners — Permanent Establishment in Mexico: When Is It Triggered?Additional discussion of fixed places of business and dependent-agent considerations.
Business Presence and Contractors
L&E Global — Business Presence Issues in Mexico
Practical discussion of employee, contractor and business-presence considerations.
International Tax and the 183-Day Rule
GTN — Understanding the 183-Day Rule for International Tax Treaties
Useful explanation of the treaty-based 183-day employment test and why the threshold should not be treated as a standalone safe harbor.
Foreign Companies Operating in Mexico
UPLAW — How Foreign Companies Can Legally Operate in Mexico
Broader discussion of Mexican market-entry structures, including subsidiaries, branches and contractual arrangements.
Additional Reference
Commenda — Permanent Establishment in Mexico
Additional practical discussion of Mexican PE considerations, including fixed places of business, dependent agents, remote work and manufacturing.
Mexican Tax Residence
Flores Attorneys — Residence for Mexican Tax Purposes
Additional discussion of Mexican tax-residence concepts relevant to foreign companies and individuals.
This article is provided for general informational purposes and does not constitute legal or tax advice. Permanent-establishment exposure depends on the specific facts, applicable Mexican legislation and, where relevant, the tax treaty between Mexico and the foreign company's jurisdiction of residence. Companies evaluating operations in Mexico should obtain jurisdiction-specific legal and tax advice before implementing or materially changing their operating structure.
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