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Close-up of a world globe showing Europe, Africa, and the Middle East—international tax & ITIN services.

Expert ITINs, EINs, and U.S. tax filings for non-U.S. residents and expats

Certified Acceptance Agent service to verify your identity, prepare your forms, and coordinate with the IRS from start to finish.

Woman reading by the London skyline with her dog—life abroad for expats and non-U.S. residents.

Who We Help

Confusing U.S. tax rules?

Stay compliant with a trusted pro.

  • Non-U.S. citizens who need an ITIN to file U.S. taxes, claim treaty benefits, or open a U.S. business

  • U.S. expats and citizens living abroad with non-resident alien spouses or children

  • Founders/investors and foreign entities that need an EIN

  • U.S. expats and nonresident aliens who need U.S. tax filing support (1040-NR, treaty positions, real estate sales, inheritance, withholding questions)

Why Work with a Certified Acceptance Agent (CAA)

  • Identity & status verified without mailing your passport to the IRS

  • Application accuracy that avoids common rejection errors

  • Direct coordination with the IRS ITIN unit to monitor progress and resolve issues

Passport, boarding passes, and visa stamps—identity verification for ITIN applications.
Multiple national flags on flagpoles—global clients and cross-border documentation.

Our Services

  • ITIN (Form W-7) preparation & CAA certification

  • EIN acquisition for non-U.S. entities and startups

  • U.S. tax returns & forms for nonresidents/expats (1040, 1040-NR, treaty disclosures)

  • Adviser/firm bundles (law, investment, property managers) when multiple client ITINs are needed

Documents Required

  • Valid passport (or accepted alternative ID)

  • Supporting reason for ITIN (filing a tax return, treaty article, etc.)

  • Additional documents (W-2/1099/1042-S/K-1 as applicable)

3-Step Process

  1. Submit a detailed questionnaire 

  2. Gather & send your documents to Hayden

  3. Hayden files your W-7 / tax return & tracks status with the IRS.

Once we verify your ITIN reason, the process is easy: 

Timing & Expectations

​ITIN processing is controlled by the IRS. We prepare, certify, and submit quickly; the IRS timeline varies by season and workload. Processing usually takes several months.

Person reviewing U.S. tax forms with a calculator and receipts—ITIN and filing documentation.

Former expat. Current expert.

From ITINs to tax treaties—straightforward guidance to stay compliant.

Hayden McCoy, CFE, EA, CTC, CFP®

Enrolled Agent and Certified Acceptance Agent

 

After 15 years living overseas, I understand the documentation hurdles and timing issues both non-citizens and expats face. I streamline your ITIN application and align your U.S. return with foreign income, tax treaties, credits, and required disclosures to keep you fully compliant and give you peace of mind.

Hayden McCoy, Enrolled Agent and Certified Acceptance Agent—U.S. expat and international tax specialist.

Let's Connect

If you’re dealing with tax exposure, divorce financial questions, IRS stress, or cashflow pressure — you don’t have to figure it out alone.

Reach out and tell me what’s going on. I’ll listen, ask a few focused questions, and let you know if I can help.

No pressure. No judgment. Honest answers.

Typical response time: within 1-2 business days.

Address

Based in Winter Haven, Florida

Serving clients remotely

Email

Phone

817-210-4009

(call or text)

Conversations are confidential.  I do not share your information.

© 2025 by Synergy Wealthcare Solutions, LLC.

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