US LLC Tax Guide for Mexico Residents
Everything Mexico residents need to know about US LLC tax obligations, treaty benefits, ITIN requirements, and compliance deadlines.
Quick Summary
Tax Treaty
Yes — treaty in effect
ITIN
Usually required
E-2 Visa
Eligible
US Tax Obligations for Foreign-Owned LLCs
Every foreign-owned single-member LLC that is treated as a disregarded entity must file the following with the IRS, regardless of whether the LLC earned any income:
Form 5472 + Pro Forma Form 1120
Reports transactions between the LLC and its foreign owner (e.g., capital contributions, distributions, loans). Must be filed even if no reportable transactions occurred during the year. Penalty for failure to file: $25,000 per form.
Deadline: April 15 (or extended to October 15)
The Form 5472 is due on the 15th day of the 4th month after the tax year ends (April 15 for calendar year filers). An automatic 6-month extension is available by filing Form 7004.
EIN (Employer Identification Number)
Your LLC must have an EIN before filing. Apply using Form SS-4 online, by fax, or by mail. Foreign owners without an SSN can apply by fax or use our EIN application tool.
Tax Treaty Benefits
The US-Mexico tax treaty provides protection against double taxation with defined rates on dividends, interest, and royalties. Geographic proximity and USMCA strengthen the economic relationship between the two countries.
Treaty Withholding Rates
5–10%
Dividends
4.9–15%
Interest
10%
Royalties
Treaty rates apply to specific types of income. A single-member LLC that is disregarded for US tax purposes generally does not itself earn dividends, interest, or royalties in the traditional sense. However, these rates become relevant if the LLC elects corporate treatment or if you have other US-source income. Use our Treaty Lookup Tool to explore the full treaty provisions.
ITIN Requirements
Usually needed. Some Mexican residents may already have a US SSN if they previously worked in the US, but most will need an ITIN.
How to Apply for an ITIN
- 1Complete IRS Form W-7 with your tax return
- 2Provide original identification documents (passport) or certified copies
- 3Submit by mail to the IRS ITIN Operation, or through a Certifying Acceptance Agent (CAA)
- 4Processing typically takes 7–11 weeks
Local Tax Reporting in Mexico
SAT (Servicio de Administración Tributaria) requires worldwide income reporting. US LLC income must be declared in your ISR (Impuesto Sobre la Renta) return. A foreign tax credit is available to offset US taxes paid.
Important: Tax laws change frequently. The information above is for general guidance only. Always consult a qualified tax professional in Mexico who is familiar with US LLC structures to ensure accurate reporting and compliance.
Special Considerations for Mexico Residents
Geographic proximity makes Mexico one of the most common countries for cross-border US business. TN visa is available for certain professions under USMCA. E-1 (Treaty Trader) and E-2 (Treaty Investor) visas are both available to Mexican nationals. Mexican residents near the border often maintain physical presence in both countries, which requires careful tax residency analysis.
E-2 Treaty Investor Visa: As a Mexico national, you are eligible for the E-2 visa, which allows you to live and work in the US to direct and develop your US business. This requires a substantial investment in the US enterprise.
Common Formation States
Mexico residents most commonly form their US LLC in the following states:
Delaware
Most established business law in the US. Court of Chancery specializes in business disputes. No state income tax on out-of-state revenue. Privacy protections for owners.
Wyoming
No state income tax. Lowest annual fees. Strong asset protection. No franchise tax. Lifetime proxy allowed.
Texas
No state income tax on individuals. Large economy. Proximity to Mexico border. Franchise tax applies only above revenue threshold.
New Mexico
No annual report requirement. No publication requirement. Low fees. Proximity to Mexico border.
Ready to Get Started?
Whether you need to form a new LLC, get an EIN, or file your annual Form 5472, we have the tools to help Mexico residents stay compliant.