Shelter or Your Own Entity in Mexico: How Manufacturers Decide

The shelter vs own entity decision in Mexico turns on where you sell, how fast you want to produce and how long you plan to stay. A shelter fits when you want to produce in Mexico within months, export everything you make and keep your administration light while the operation proves itself. Your own entity fits when you sell to customers in Mexico, want incentives, financing or land held by a company you own, or run at a scale where the shelter fee outgrows the cost of doing that work yourself.

The choice can be staged. You can enter through a shelter and move later, and providers' 2026 estimates put that move at 12 to 18 months. The shelter companies in Mexico guide covers how the model works.

How do you decide between a shelter and your own entity?

Answer in order. A yes to either of the first two settles it, and the rest are weights.

1. Will you sell Mexican-made product to customers in Mexico routinely? Yes: your own entity, since a shelter client may not sell Mexican-made products without an export pedimento. No: go to question 2.
2. Is your company a related party of the shelter, or resident in a jurisdiction without a comprehensive exchange-of-information agreement with Mexico? Yes: your own entity, since the shelter's permanent-establishment protection will not reach you. The US and Canada qualify under RMF 2026 rule 2.1.2. No: go to question 3.
3. Do you want first production within about six months? Yes: a shelter, with the exit written into the contract. No: go to question 4.
4. Within 24 months, will the annual shelter fee exceed what payroll, accounting, customs and IMMEX compliance would cost you in-house? Yes: your own entity, or a shelter with a dated exit. No: a shelter.
5. Is your horizon longer than a first shelter term, commonly three years or more, plus a 12 to 18 month transition? Yes: plan for your own entity. No: a shelter.
6. Do your regulators or customers expect your company to employ the people doing quality-affecting work, or to operate the plant? Yes: your own entity. No: a shelter.
7. Do you want incentives, bank financing or land held by a company you own? Yes: your own entity. No: a shelter.

If every answer routes to a shelter, start there. If questions 4 to 7 split, they set the timing of the move. For a scored read on your own answers, the Mexico Entry Readiness Diagnostic takes eleven questions and about three minutes, and covers ownership structure, site, regulatory routing, landed cost and timeline.

When a shelter fits

• You are entering Mexico for the first time and want first production within a few months, as little as 30 days in move-in-ready space.
• Everything you make leaves Mexico under an export pedimento.
• Your headcount sits below your breakeven.
• You want a Mexican company to hold the IMMEX program, employ the workforce and run most administration while you run production.

When your own entity fits

• You sell, or plan to sell, to customers in Mexico.
• Your headcount has passed your breakeven and the operation can run its own compliance calendar.
• Your horizon runs well past a first shelter term.
• Your regulators, customers or lenders expect your company as employer and legal operator, or you want incentives, financing or land in its name.

The corporate form comes next. Mexican entity structure options compares the choices, and entity and legal structuring covers the build.

Shelter vs own entity in Mexico: how do the two models compare?

Factor	Shelter	Your own entity
IMMEX program	The shelter's, albergue modality	Your company's
Legal employer	The shelter	Your company
First production	About 1 to 6 months (provider figures)	6 to 12 months to the IMMEX program (industry estimate); 13 to 16 months to full VAT certification (one provider)
Sales in Mexico	Barred without an export pedimento	Permitted, with definitive import (Ley Aduanera Art. 109)
Income tax	Safe harbor ISR on your account, paid by the shelter	Filed by your company under Arts. 181 and 182
PE exposure	Deemed PE if the shelter defaults and does not cure in 30 days	Rests on your own compliance
VAT/IEPS certification	The shelter's, at its tier	Your own, renewed yearly
Cost shape	Fee per employee, per hour or fixed, plus pass-throughs	Own administration, plus setup and transition
Incentives, financing, land	No Mexican company of your own to hold them	Held by your company

Who carries the compliance burden?

The shelter holds the IMMEX program, is importer of record into Mexico and exporter of record out of it, owes the foreign-trade taxes on its temporary imports and is the legal employer. Most day-to-day customs, payroll and labor administration sits with it.

You keep real exposure. The safe-harbor income tax is legally yours. If the shelter breaches Art. 183-Bis and does not cure within 30 calendar days of a SAT requirement, you are deemed to have a permanent establishment. You own the goods and machinery, you are usually the US importer of record, and product-regulatory duties stay with you.

With your own entity the calendar is yours: the IMMEX annual report by the last business day of May, Anexo 24 inventory control, the yearly VAT/IEPS renewal, the DIEMSE by June, payroll and IMSS. Run well, it is routine. For missing FY2025 annual reports, the Secretaría de Economía suspended 441 programs in June 2026 and cancelled 189 from September 1. The IMMEX suspensions guide covers the mechanics.

How fast can each model start producing?

Shelter providers publish about 1 to 6 months to first production, as little as 30 days in move-in-ready space, and 10 to 15 months to full production in a dedicated shelter set up as a new legal entity. For your own entity, industry and economic-development estimates put the IMMEX program at 6 to 12 months, one provider puts a standalone operation at 8 to 18 months before it can operate, and another puts full VAT certification at 13 to 16 months.

The legal clocks are short. The Secretaría de Economía has 15 business days to rule on an IMMEX application, with silence counting as approval, and SAT has 60 days on VAT/IEPS certification, with silence counting as denial. The months go to incorporation, SAT registration, a lease with at least a one-year mandatory term and 11 months left, the pre-approval site inspection and the certification file.

What control do you keep in a shelter?

You direct production and keep your quality system, your IP and title to your materials and equipment. Art. 183 bars you from selling machinery or inventory to the shelter, so equipment is usually lent under a comodato. The shelter holds the employer relationship and the Mexican entity.

In regulated manufacturing that line matters. FDA reads ISO 13485 training duties as covering contractors, and no FDA text says who registers a shelter-hosted device site. The medical device shelter guide covers both.

What does each model cost?

Shelter fees have no single market rate. Quotes come per employee per month, per paid hour on a scale that steps down with headcount, as a fixed monthly fee, or as transactional fees such as per-pedimento charges and markups on pass-throughs. Published 2026 ranges, all from providers or aggregator sites, run from under $100 to about $400 per employee per month.

The fee is rarely the whole bill. In one shelter agreement filed with the SEC, wages, profit sharing (PTU), payroll taxes and severance pass through to the client, and rent, customs broker fees, duties and freight sit outside the fee; another puts all severance on the client, including at expiry. The shelter program cost guide compares the pricing models and the full monthly bill line by line.

Your own entity replaces the fee with its own administration, plus one-time setup and transition costs.

An illustrative breakeven

Illustrative only, built on the published fee range.

Fee per employee per month	Annual fee, 200 employees	Annual fee, 500 employees	Employees per $100,000 of in-house cost
$100	$240,000	$600,000	83
$250	$600,000	$1.5 million	33
$400	$960,000	$2.4 million	21

Multiply the last column by your annual administration estimate, in hundreds of thousands of dollars, to get your breakeven headcount. Then add pass-throughs, exit severance and transition costs. Run it in the Mexico manufacturing cost calculator.

What are the legal and tax differences?

Permanent establishment. Under LISR Art. 183, a foreign resident supplying materials, machinery or equipment to an authorized shelter has no permanent establishment in Mexico, with no time limit since 2020, provided it is not a related party of the shelter and meets the article's filing conditions through the shelter. You owe income tax from day one: 30 percent on the higher of 6.9 percent of assets or 6.5 percent of costs, determined on your account and paid by the shelter, which is jointly liable.

For your own maquila, Art. 181 protects the foreign parent where Mexico has a tax treaty with its country of residence, the entity meets the Art. 182 safe harbor on a broader asset base, and the parent owns at least 30 percent of the machinery. With the APA option repealed from 2022 and the last unilateral APAs expired on December 31, 2024, the safe harbor is in practice the method on both paths, save a closing bilateral-APA route for groups with open 2020 to 2024 APAs.

Domestic sales. Art. 183 reads: "En ningún caso, los residentes en el extranjero podrán enajenar productos manufacturados en México que no se encuentren amparados con un pedimento de exportación". Shelter production leaves Mexico under an export pedimento, physically or as a virtual export to another IMMEX company, and selling routinely to Mexican customers requires your own entity. For its holders, the IMMEX Decree sets an export threshold of more than US$500,000 a year or at least 10 percent of invoicing, and goods for the Mexican market move to definitive import under Ley Aduanera Art. 109. Domestic-sale income falls outside the maquila operation, so structure a mixed operation with your tax adviser.

Employer substitution. Under LFT Art. 41, employment continues, seniority carries over and the shelter stays jointly liable for prior obligations for six months from notice to the union or workers. Since April 2021, "para que surta efectos la sustitución patronal deberán transmitirse los bienes objeto de la empresa o establecimiento al patrón sustituto", so the substitution takes effect only once the business assets pass to your entity. When you already own the machinery, that takes structuring with Mexican labor counsel, and IMSS applies its own asset test and six-month joint liability under LSS Art. 290. The fallback, termination and rehiring, triggers severance under LFT Arts. 50 and 162 and loses seniority unless a contract recognizes it.

This is a high-level summary, not legal or tax advice.

What are the triggers to switch?

• A customer in Mexico, or a plan to sell there.
• Headcount passing your breakeven on the quoted fee.
• An incentive, credit facility or land deal you want in your own company's name.
• A regulator, customer or lender expecting your company as employer and operator.
• The end of the initial term, or the renewal notice window, 90 days before expiry in one SEC-filed agreement.
• Three fiscal years under the shelter regime, after which RGCE 2026 rule 7.1.8 lets a new entity that obtained its first IMMEX program in the prior 12 months count the shelter's personnel, infrastructure and investment toward VAT/IEPS certification, provided the shelter holds the AAA tier and is not suspended (ficha 61/LA).

What does a transition plan look like?

The phases divide the 12 to 18 months providers estimate, following one provider's four-phase plan, which puts entity and IMMEX setup in months 3 to 9.

Phase	Months	Checklist	Lead
1. Decide and form the entity	1 to 3	Contract notice; incorporation, RFC, e.firma, positive 32-D opinion; bank, payroll and IMSS; qualifying lease and pilot line	You, corporate counsel
2. Registrations	3 to 12	IMMEX program; Anexo 24 inventory system; VAT/IEPS certification under rule 7.1.8	Customs counsel, broker
3. People and assets	9 to 15	Employer substitution with the asset transfer structured; same-day virtual transfer of machinery (RGCE rule 1.6.10) and inventory	Labor counsel, the shelter, broker
4. Cutover	12 to 18	Brokers, suppliers and customers re-papered; US importer of record updated; first exports under your IMMEX; SAT cessation notice within the month after shelter operations stop	You, the shelter

Certification comes before the machinery moves, because transfer-based temporary imports pay IVA/IEPS unless the receiving company is certified or posts a guarantee. Since January 2026, Ley Aduanera Art. 112 requires every party to a transfer to keep documentation back to the original import, including proof of the productive process. Whether the six-month return-or-import clock for transferred goods reaches machinery is unresolved, so customs counsel confirms it first. Customs, trade and IMMEX covers that work.

Common pitfalls

• Budgeting six months. One provider's 2026 guidance says six-month budgets consistently miss.
• Moving machinery before certification. The transfer then pays IVA/IEPS unless you post a guarantee.
• Treating substitution as automatic. It takes effect only with the asset transfer.
• Signing without an exit clause. One SEC-filed agreement let the client start forming its own subsidiary after month 18 and set out how pedimentos and workers would move.
• Comparing headline fees. The guide to choosing a shelter company compares all-in cost per employee.
• Assuming the shelter carries every risk. The safe-harbor tax is yours.

The bottom line

A shelter gets you producing in months and runs most day-to-day administration while you keep the product, the process and the equipment. Your own entity holds the employer relationship, the IMMEX program and the certifications in your name, and it is the route to selling Mexican-made goods in Mexico. The seven questions tell you which fits today, the triggers tell you when that changes, and a 12 to 18 month plan started early keeps the move orderly.

If you want a read on which model fits, and help running the provider selection or the entity and incentives work, a complimentary 30-minute call is a good place to start: no pitch, and a reply within 24 hours.