March 11, 2026
Mexican entrepreneurs and founders entering the US market face a foundational decision: what legal structure will hold US operations? This choice affects tax liability, operational complexity, and cross-border reporting across multiple years. The federal tax system offers flexibility through “check-the-box” election rules, but state law governs formation requirements, ongoing costs, and governance.
This Insight maps the entity selection landscape for Mexican nationals and family offices establishing US subsidiaries. We examine trade-offs between C-corporations and LLCs, multi-tier holding structures, and cross-border implications that shift the analysis.
Key Points
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A US LLC is not automatically a partnership for tax purposes. The entity classification election rules (Form 8832) allow an LLC to be taxed as a C-corporation, partnership, or disregarded entity. Owners may elect corporate taxation if the pass-through treatment of an LLC does not align with their capital structure or exit strategy.
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Delaware and Texas offer different tax and procedural profiles. Delaware charges an annual franchise tax on both LLCs and corporations (a flat $300 for LLCs; for corporations, the tax varies based on authorized shares or total gross assets, with a minimum of $175 and a maximum of $200,000); Texas imposes a franchise tax only on revenue above $2.65 million. Delaware has traditionally dominated entity formation due to the Court of Chancery, an extensive body of corporate case law, and a flexible statutory framework. Texas is increasingly competitive, offering no state income tax, a modernized Business Organizations Code, and geographic proximity to Mexico for cross-border operations.
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A holding company structure (HoldCo) separates legal liability from operational risk. A parent LLC holds membership interests in one or more operating LLCs (OpCos) conducting business. Liability exposure within each tier is quarantined from the others.
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US and Mexican entity classification rules do not align. The US allows owners to elect how an LLC is taxed through the “check-the-box” rules (Form 8832). Mexico has no equivalent election, all Mexican corporate entities are taxed as corporations at 30% under the LISR, regardless of how many members they have or how the US classifies them. This mismatch means that the same entity can be a pass-through in the US and a corporation in Mexico, creating planning complexity that requires coordination between US and Mexican tax counsel.
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An operating agreement is strongly recommended, even when not legally required. Operating without one exposes members to default state law rules on LLC membership transfers, profit allocation, and manager removal, rules that are often unfavorable to multi-member structures.
I. Entity Classification: C-Corporation vs. LLC
Tax treatment defaults
A Delaware or Texas LLC with two or more members is a partnership under federal tax law unless owners file Form 8832 to elect C-corporation taxation. A single-member LLC is treated as a disregarded entity by default for federal tax purposes, though it retains its legal identity as a separate entity under state law. A C-corporation is taxed as a separate entity, income is taxed at the corporate level, and distributions may be taxed again as dividends.
Under the IRS entity classification rules, the election becomes effective within 75 days before filing or up to 12 months after filing. Once made, the entity is locked into that classification for 60 months without IRS permission to change.
When C-corporation taxation may be suitable for a Mexican founder
A Mexican national or family office planning multi-stage US expansion may elect C-corporation status for an LLC if the strategy requires retained earnings, delayed distributions, or a defined exit through acquisition. C-corporation taxation creates a separate taxpayer, advantageous if the founder intends to reinvest profits in the US rather than immediately repatriate to Mexico.
Retained earnings in a US C-corporation are not immediately distributed to Mexican shareholders and may not be immediately subject to Mexican income tax on actual distributions. However, Mexico’s REFIPRES (Régimen Fiscal Preferente) anti-deferral regime may treat undistributed profits as deemed income to the Mexican shareholder. Because the US federal corporate rate (21%) falls below Mexico’s 22.5% REFIPRES threshold, a Mexican resident holding 50% or more effective control of a US C-corporation could face current Mexican taxation at 35% on the corporation’s undistributed profits, regardless of whether any distribution occurs.
A US C-corporation incurs double taxation in the US, once at the corporate level and again when dividends reach shareholders. In Mexico, the shareholder generally owes income tax on distributions received, but REFIPRES may accelerate taxation on undistributed profits for controlling shareholders. These systems do not align.
Pass-through structures and the default LLC
A common approach for Mexican founders is the pass-through LLC (taxed as a partnership). Profits and losses flow to members’ individual US tax returns, and a pass-through structure may offer lower effective US tax rates if members have unused losses or credits elsewhere. However, pass-through treatment is not administratively light for foreign owners. A partnership with effectively connected taxable income allocable to foreign partners must withhold tax under IRC §1446 at the highest applicable rate (37% for individuals, 21% for corporate partners), and each foreign partner must file a US return (Form 1040-NR or 1120-F).
The pass-through treatment applies only for US federal tax purposes. A Mexican S. de R.L., even if treated as a partnership or disregarded entity for US tax purposes under the check-the-box rules, remains a corporation taxed at 30% under Mexican law. The two systems do not mirror each other, and what simplifies US compliance may create complexity on the Mexican side.
II. State of Formation: Delaware vs. Texas
Delaware
Delaware has traditionally dominated entity formation for good reason. The Court of Chancery, a specialized business court staffed by expert jurists with no jury trials, provides fast, predictable resolution of business disputes. Over decades, this court has produced an extensive body of corporate case law that defines expectations for governance, fiduciary duties, and shareholder rights more thoroughly than any other state. Over 68% of Fortune 500 companies are incorporated in Delaware, and sophisticated investors typically expect or require Delaware formation.
Texas
Texas is increasingly competitive for entity formation, particularly for cross-border US-Mexico operations. Texas imposes no state income tax, a fundamental advantage. The franchise tax applies only to entities with revenue above $2.65 million (2026 threshold). For nearshoring operations, Texas offers geographic proximity to Mexico, a growing startup and technology ecosystem, and established cross-border trade infrastructure through ports like Laredo.
Strategic choice
Delaware remains the default for holding companies, multi-investor structures, and entities seeking institutional capital. Texas is a strong choice for operational subsidiaries, service businesses, and companies with Mexican operations or supply chains. Wyoming offers strong privacy protections and low formation costs. The founder’s home state may also be appropriate, particularly if operations are concentrated there.
US-Mexico overlay. The choice of US state of formation does not affect a Mexican subsidiary’s tax status in Mexico. A Mexican corporate entity is subject to 30% corporate income tax under the LISR regardless of where its US parent is formed.
III. Multi-Tier Holding Company Structures
A HoldCo owns membership interests in one or more OpCos conducting business. The HoldCo may own other assets (intellectual property, real property, excess cash). Liability incurred by the OpCo does not reach the HoldCo or its parent members. Formation involves creating two LLCs with each maintaining a registered agent in its state of formation. Annual costs double because both entities file separate tax returns.
A Mexican family office typically establishes a Delaware HoldCo with members who are Mexican individuals, trusts, or holding companies. The HoldCo owns OpCo LLCs holding specific US business units or assets. This segregation isolates US operational liabilities from the family office’s other assets.
IV. Check-the-Box Elections and Cross-Border Tax Treatment
Form 8832 allows a multi-member LLC to elect C-corporation taxation (overriding the default partnership classification), and a single-member LLC to elect corporation taxation. The entity is locked into the chosen classification for 60 months. Changing within five years requires IRS consent, granted only in narrow circumstances.
The election affects only federal US income tax treatment. It does not change the entity’s legal status under state law. And it does not affect taxation by Mexico, all Mexican corporate entities are taxed as corporations by SAT at 30% under the LISR.
When a US OpCo elects C-corporation taxation, the US statutory withholding rate on dividends to foreign persons is 30% under IRC §1441, but the US-Mexico Income Tax Treaty (Article 10) reduces this to 5% for shareholders owning 10% or more, and 10% for portfolio shareholders below that threshold. Treaty benefits require proper documentation (Form W-8BEN or W-8BEN-E). On the Mexican side, the shareholder may credit the US withholding tax against their Mexican income tax liability under the LISR foreign tax credit provisions and Treaty Article 23.
V. Operating Agreements and Membership Rights
Under default LLC law in both Delaware and Texas, a member may assign the economic rights of a membership interest without the consent of other members. However, the assignee does not automatically become a full member with voting or management rights. Full membership status requires the unanimous consent of all existing members unless the operating agreement provides otherwise.
The operating agreement should address membership and capital, profit and loss allocation, management and voting, transfer restrictions and buy-sell triggers (death, disability, divorce, bankruptcy, incapacity), and dissolution mechanics. Without these provisions, state law defaults apply, which may create unfavorable outcomes on membership transfers and profit allocation.
VI. Formation and Compliance Sequence
A founder establishing a US subsidiary begins by selecting an entity structure, state of formation, and whether to elect corporate taxation. The operating agreement is drafted before operations commence. If C-corporation taxation is intended, file Form 8832 with the IRS within 75 days of formation. Coordinate this election with Mexican tax counsel because the US filing does not change Mexican tax status.
Form 5472 compliance. A 25% or more foreign-owned US corporation must file Form 5472 with the IRS for each tax year in which it has reportable transactions with related foreign parties. This requirement also applies to a foreign-owned US disregarded entity. The penalty for failure to timely file is $25,000 per form, per year, and if the failure continues for more than 90 days after IRS notification, an additional $25,000 accrues for each subsequent 30-day period with no cap.
Next Steps
Entity selection and cross-border structuring involve interrelated US and Mexican tax, corporate, and regulatory considerations that vary based on the specific facts of each transaction. If you are evaluating a US entity structure for your Mexican business or family office, we welcome the opportunity to discuss your situation. Please contact us at info@hirolaw.com or visit hirolaw.com to schedule a consultation.
This Insight is provided by HIRO LAW for general informational and educational purposes only. It does not constitute legal advice and should not be relied upon as such. No attorney-client relationship is created by your receipt of or access to this material. The information contained herein may not reflect the most current legal developments and is not guaranteed to be complete, correct, or up to date. You should not act or refrain from acting based on any information in this Insight without first seeking qualified legal counsel licensed in the relevant jurisdiction(s). Each cross-border transaction involves unique facts and circumstances that require individualized analysis. Prior results do not guarantee a similar outcome.