Need an ITIN? We Make It Simple.
Apply for your U.S. ITIN through an IRS Certified Acceptance Agent — without mailing your Mexican passport across borders.
What is an ITIN?
An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the U.S. Internal Revenue Service (IRS). It is designed for individuals who have U.S. federal tax obligations but are not eligible for a Social Security Number. For Mexican residents with U.S. income, property, or treaty claims, an ITIN is essential to file U.S. returns and meet compliance requirements.
Key Facts
- Issued exclusively by the IRS
- Used for U.S. federal tax purposes only
- Required for non-residents with U.S. tax obligations
- Needed to claim Mexico–U.S. tax treaty benefits
- 9-digit number in the format 9XX-XX-XXXX
Who Needs an ITIN?
Built specifically for Mexican citizens and residents with U.S. tax obligations.
U.S. Real Estate Investors
Mexican residents purchasing or selling property in the United States.
See if you qualify →U.S. Rental Income Earners
Mexican owners earning rental income from U.S. properties.
See if you qualify →Snowbirds Filing U.S. Tax Returns
Mexican residents spending extended time in the U.S. who must file a return.
See if you qualify →Gambling Winnings in the U.S.
Recover the 30% withholding tax on Las Vegas and U.S. casino winnings.
See if you qualify →U.S. Business or Partnership
Mexican partners receiving income from U.S. partnerships or LLCs.
See if you qualify →Mexico–U.S. Tax Treaty Benefits
Apply treaty reductions or refunds available to Mexican residents.
See if you qualify →Spouse or Dependent on a U.S. Return
Mexican spouses or dependents listed on a U.S. tax filing.
See if you qualify →U.S. Investment Accounts
Some U.S. financial institutions require an ITIN for reporting.
See if you qualify →A Simple, Guided Process
From intake to IRS submission — handled by a Certified Acceptance Agent.
- 01
Free Eligibility Review
Tell us your situation. We confirm whether you qualify and what documents you need.
- 02
Document Verification
We verify your Mexican passport in person or by secure video — no mailing originals to the IRS.
- 03
Prepare W-7 & Return
We prepare your W-7 and, when required, your U.S. tax return or refund claim.
- 04
IRS Submission & Tracking
We submit to the IRS and track your file until your ITIN — and refund — arrive.
Trusted by Mexican Clients
“They recovered the 30% withheld on my Las Vegas winnings. Clear, fast, and entirely in Spanish.”
“Excellent service for my U.S. rental property. They explained every step and got my ITIN without me sending my passport anywhere.”
“Professional, bilingual and reliable. They understand both the SAT and IRS sides.”
Frequently Asked Questions
How long does the ITIN process take?+
After IRS receipt, processing typically takes 7–11 weeks. We track your file the entire time.
Do ITINs expire?+
Yes. An ITIN expires if not used on a U.S. federal tax return for three consecutive years, or based on its middle digits.
Is ITINServices.mx affiliated with the IRS?+
No. We are an independent firm whose principal is an IRS-authorized Certified Acceptance Agent.
How do you protect my personal information?+
Documents are transmitted over an encrypted portal, stored on servers with strict access controls, and never shared outside the engagement.
What causes ITIN rejection?+
Common reasons include missing supporting documents, incorrect W-7 reason codes, or unsigned tax returns. We prevent these before submission.
Can I apply without filing a return?+
Yes, if you qualify for a treaty exception — for example, certain gambling refunds or U.S. financial-institution reporting.
What if my ITIN expired?+
We renew it under the same W-7 process and submit it together with your next U.S. tax filing.
Do I need to mail my passport?+
No. As a Certified Acceptance Agent, we certify your Mexican passport so you keep the original.
Your intake handled by a cross-border tax specialist.
Carlos Mendoza
Certified Acceptance Agent
Ready to Start Your ITIN Application?
Structured, Mexico-focused guidance to help you navigate the IRS ITIN process with confidence.
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