Executive answer
Permanent establishment and transfer pricing answer different questions. The first asks whether a foreign resident has a taxable Mexican presence through a place, person, activity or another rule under domestic law and treaty. The second asks whether controlled transactions and, where relevant, profit attribution reflect arm’s-length conditions.
Paying an arm’s-length fee to a Mexican subsidiary does not automatically eliminate a PE. Identifying a PE also does not attribute all foreign profit to Mexico. First determine presence; then attribute functions, assets, risks and income under the applicable framework; separately review transactions among related entities.
The review starts with people, places, agreements and conduct. Organization charts and labels such as “independent agent” do not replace actual authority or use of premises.
Three separate layers
Layer one: presence. Review the Income Tax Law, treaty and facts for fixed place, agency, service, construction or other applicable cases.
Layer two: attribution. Determine the activities and profits attributable to the PE, considering relevant functions, assets and risks.
Layer three: related transactions. Price transactions among the subsidiary, head office and other entities without duplication or omission.
Document each conclusion separately. “Arm’s length” does not resolve all three.
People perimeter
List employees, expatriates, contractors, agents, distributors, directors and foreign providers acting in Mexico. Record employer, location, days, functions and authority.
Do not focus only on signatures. Review negotiation, principal roles leading to contracts, instructions and habitual approvals under the applicable treaty and facts.
Map reporting, performance review and ability to bind the group. Email, CRM, minutes and policy may contradict the agreement.
Update for job, travel and launch changes. Temporary projects can become recurring.
Places perimeter
Inventory offices, plants, warehouses, desks, coworking, customer sites, home offices, servers and equipment. Record availability, control, duration and activity.
Ownership is not required to analyze whether premises are at disposal. Ask whether the foreign enterprise uses them regularly for business.
Separate preparatory or auxiliary activities from core operations under the applicable treaty. Labels are insufficient; consider the chain.
Retain agreements, access records, plans, cost and conduct.
Agents and agreements
Map who identifies customers, negotiates terms, grants discounts, approves credit, prepares orders and signs. Determine frequency and supervision.
A distributor contracting in its own name may still raise questions if nearly exclusive and not genuinely independent, depending on the treaty and facts.
Review business risk, customer diversity, premises and authority. Legal independence is not automatically economic independence.
Sample agreements from lead through signature.
Services and projects
Identify consulting, installation, engineering, support, training and management physically performed in Mexico. Record days, people, projects and beneficiary.
Some treaties contain service rules; others do not. Do not apply a universal day threshold.
Coordinate travel, immigration, timesheets and invoices. Incomplete calendars prevent duration analysis.
Separate foreign services, secondments and subsidiary activity.
Construction and installation
Map sites, contracts, subcontracts, start, pauses, tests, acceptance and entities. Review the applicable treaty threshold.
Do not artificially fragment projects among related parties. Analyze commercial coherence, place and continuity.
Identify control over people, equipment, quality and customer. Preserve dates.
Contract value alone does not determine attribution.
Maquila and manufacturing
Where a foreign resident operates through maquila, review Article 181 protection, treaty and Article 182 compliance. IMMEX alone is insufficient.
Map goods, machinery, principal, agreement, revenue, Safe Harbor and DIEMSE. A gap may affect treatment.
Also review foreign personnel and activities outside maquila. Protection may not cover other nexus.
Refresh annually as facts change.
Zugzwang’s PE & TP Risk Review separates presence, attribution and related transactions and connects them with people, places, agreements and data.
A subsidiary does not equal no PE
A Mexican subsidiary neither prevents nor automatically creates a parent PE. Analyze whether it acts independently or for the foreign enterprise and whether premises or people are available.
The intercompany agreement should agree with customer terms, job descriptions and approvals. A “support” subsidiary whose employees close business creates a contradiction.
Review dual roles and time allocation. Do not assign everything to the payroll entity.
Document subsidiary remuneration and residual foreign functions.
Profit attribution
Once a PE is identified, reconstruct functions, assets and risks of its activities. Determine revenue, cost, capital and internal dealings recognized under the applicable framework.
Do not attribute full sales merely from customer location. Analyze contributions and rights.
Avoid double remuneration: if the subsidiary already earns a fee, explain its relationship with PE profit.
Prepare segmentation and reconciliation to foreign and Mexican accounts.
Financing and capital
Determine capital and debt associated with PE activities under the applicable approach. Identify funding and risk.
Internal or external interest needs legal and economic analysis and is not presumed deductible.
Reconcile balances with subsidiaries and head office. Avoid indefinite accounts.
Document FX and guarantees.
Subsidiary transfer pricing
Select methods for services, distribution, manufacturing or other activities. The margin should reflect actual functions.
A benchmark does not resolve presence but helps remunerate the entity. Define cost bases and exclusions.
Where employees work for the PE, allocate functions and cost consistently.
Monitor true-ups and invoicing.
Customer agreements
Review the signing entity, negotiation location, delivery, acceptance, warranty, support and collection. Compare conduct.
A digital signature outside Mexico does not cure habitual Mexican negotiation. A Mexican signature does not prove the parent was absent.
Map each stage and owner using material samples.
Align CRM, invoices and revenue recognition.
Home office and remote work
Record whether Mexico is required, who pays for space, permanence, access and activity. Conclusions depend on facts and treaty.
Do not use one global rule without reviewing voluntariness and disposal. Occasional travel differs from an operating base.
Set remote-work approval and escalation. HR should notify tax.
Retain location and days while respecting privacy.
Board and management
Map where decisions, meetings, powers and management occur. Separate shareholder governance from operations.
A Mexican director of a foreign entity may require residence, management and PE analysis, not TP alone.
Retain agendas and minutes. Avoid boilerplate contradicting presence.
Coordinate corporate legal and tax.
Systems and evidence
Integrate travel, HR, CRM, contracts, invoices, expenses, access and project data. Use person, project and agreement IDs.
Set alerts for days, authority, premises and new activity. Annual spreadsheets arrive late.
Retain raw data, rules and review while protecting personal information.
Record exceptions and actions.
Review method
First interviews and data; second domestic law and treaty; third presence by test; fourth attribution; fifth TP and compliance.
Do not begin with a comparable margin. Presence may change the perimeter.
Document the conclusion, critical facts, uncertainty and update trigger.
Use treaty-specific advice.
Control calendar
Before entry: map and agreements. Monthly: people and projects. Quarterly: authority and places. Before close: attribution and TP. After: filings.
Review upon acquisition, a new office, customer, expatriate, secondment or signing change.
Assign global and Mexican owners.
Do not close alerts without evidence.
Remediation
Where risk exists, preserve facts and quantify periods. Do not backdate signatures or agreements.
Consider prospective changes to authority, place, process, remuneration or registration consistent with business and law.
For open periods, evaluate obligations, returns and controversy with advisers.
Coordinate counterparties to reduce double taxation.
Defense file
Include the legal map, treaty, people, places, agreements, projects, FAR, attribution, TP, accounts, invoices and calendar.
Sample leads, agreements, travel and services. Reconcile segmentation.
Preserve annual versions and changes.
Prepare an index and owner.
Illustrative example
A foreign parent has a Mexican support subsidiary. Its employees identify customers, negotiate prices and the parent signs almost automatically. Paying cost plus does not resolve PE. Authority, treaty, conduct, attribution and remuneration need separate review.
If Mexico only generates leads and the parent negotiates and decides, the conclusion may differ. CRM and approvals matter.
Practical signal matrix
An executive review works better when it turns dispersed facts into comparable signals. For each activity, record the individual, employer, beneficiary entity, location, presence days, customer or project, contractual authority, decision made and available evidence. Then assign a preliminary signal: green where the activity is clearly preparatory or performed within the subsidiary’s documented mandate; amber where authority is ambiguous, conduct is recurring or a place is used with stability; red where essential terms are negotiated, agreements are concluded, local personnel are directed or a project continues beyond the relevant threshold.
The color is not a legal conclusion. It determines which facts require testing against the treaty and domestic law. A two-day commercial visit may be immaterial in one model and decisive in another if it completes a negotiation that the Mexican entity merely formalizes. Conversely, many presence days may relate to genuinely auxiliary work. The file must explain what happened, not merely count trips.
Questions for each corporate function
Tax should identify the treaty, affected filings and the interaction among withholding, attribution and deductions. Legal should compare written authority with actual conduct, including negotiation emails and approval paths. Human resources and mobility should provide complete calendars, not only trips recorded as formal assignments. Commercial teams should explain who sets prices, accepts exceptions and commits capacity. Operations should distinguish supervision, technical assistance, installation and principal execution. Finance should reconcile intercompany charges, customer revenue and costs associated with the reviewed activities.
The combined conversation prevents two common failures: each function answering a different question and tax receiving facts already compressed into legal labels. Operational data should be preserved first and characterized second. “Commercial support,” for example, does not reveal whether a person presented general information, negotiated essential terms or made the decision that routinely led to signature.
Decision scenarios and response
If the analysis finds no taxable presence, the recommendation should not end with a negative sentence. It should document why, establish operating limits and define alerts: maximum days, excluded activities, authorization levels and reviews when new projects begin. Where material uncertainty remains, the group may need a fact-specific opinion, prospective reorganization of functions or treaty analysis, without artificially reconstructing past conduct.
If exposure is probable, the group must quantify periods and transactions, assess registration and compliance duties, determine attributable profits and coordinate the position with the residence jurisdiction. Contractual remediation matters only when it changes future conduct. For earlier periods, the defense should acknowledge actual behavior, support the selected methodology and prevent the same function from being rewarded twice between the subsidiary and the attributed presence.
Continuous monitoring indicators
A quarterly dashboard can track days by individual and project, agreements negotiated from Mexico, approved commercial exceptions, active installation projects, spaces used by foreign personnel, remote work for non-Mexican entities and deviations between policy and conduct. It should also preserve the date each signal was identified, its owner and the resulting decision. The purpose is not an automated permanent-establishment score; it is early detection before year-end analysis depends on late interviews.
Monitoring becomes more useful when connected to transfer pricing. A sustained change in authority, personnel or risk control may require revisiting the subsidiary’s characterization and remuneration even if it does not create a permanent establishment. The map therefore protects two fronts: unrecognized presence and an outdated intercompany policy.
Conclusion
PE and TP should be coordinated without being merged. Presence follows facts and framework; attribution identifies profit; TP remunerates controlled transactions.
An integrated map prevents treating fees as a shield and reduces double counting, omissions and surprises as people or projects change.
Request a PE & TP Risk Review to map presence, attribution and transactions and turn people, agreements and places into documented decisions.
Verified official sources
- Mexican Chamber of Deputies, current Income Tax Law, Articles 2, 3, 179 and 180.
- SAT, tax treaties and related matters.
- OECD, Transfer Pricing Guidelines 2022.
Verification closed on August 2, 2026. Conclusions require the treaty, facts and period of each case.