Practice Areas
International Tax Matters
Expanding business beyond your country of origin? That’s often necessary for growth, but with international presence comes international taxes. At Mixon Tax Law, comprehensive international tax preparation services are tailored to unique client needs.
Let’s be direct about international tax work—this is where people get into serious trouble fast. Clients have faced penalties that were literally more than their houses were worth, all because they didn’t know about some obscure filing requirement. The IRS doesn’t care that taxpayers were unaware; ignorance isn’t a defense when it comes to international tax compliance.
What Are International Tax Matters?

International tax isn’t like regular tax work. The rules are different, the penalties are harsher, and the IRS has gotten incredibly aggressive about enforcement in recent years. They’re using information sharing agreements with foreign governments to hunt down unreported accounts and assets.
What makes this area so dangerous is that penalties often have nothing to do with how much tax is actually owed. Miss filing an FBAR? That’s almost thirteen thousand dollars per account, even when taxpayers don’t owe a penny in actual taxes. Washington has decided international compliance is their new favorite weapon, and they’ll wreck financial lives just to prove they can.
The firm’s international tax blog covers technical details, but here’s what needs to be understood: international tax compliance is not optional, it’s not forgiving, and it’s getting more complicated every year.
International Tax Attorney Services
International Tax Planning for Individuals and Businesses

Cross-border Business Support
International business involves dealing with multiple tax systems that often conflict with each other. The firm helps companies navigate transfer pricing rules, take advantage of tax treaties, and avoid the various anti-avoidance traps that can turn profitable international operations into tax nightmares.

Outbound and Inbound Tax Planning for US-based Clients
Whether clients are U.S. businesses expanding internationally or foreign entities investing in the United States, proper tax planning is essential for optimizing global tax positions while maintaining compliance in all relevant jurisdictions.

Resolving Tax Controversies Involving International Compliance Issues
International tax disputes often involve multiple jurisdictions and complex procedural requirements. Mixon Tax Law represents clients in IRS examinations, appeals, and litigation involving international tax issues, FBAR penalties, and FATCA compliance matters.
As a business owner, there's already a lot to handle. Don't add international tax compliance to the list. Let international tax specialists handle the compliance concerns, so business owners can focus on what matters: expanding their businesses.
Avoid Offshore Penalties with Our International Tax Service

Offshore Voluntary Disclosure & Tax Amnesty
Compliance is a major concern when dealing offshore. There is always a risk of IRS fines and penalties. If a U.S. person has unreported offshore accounts, assets, investments, or income, the penalties can be devastating. The firm helps clients minimize or avoid these fines and penalties through effective international tax planning. Years of experience help clients safely get to compliance using approved tax amnesty and voluntary disclosure programs to their advantage.

FATCA & FBAR Compliance
FBAR (Foreign Bank and Financial Reporting) requires taxpayers to submit FinCEN Form 114 if they hold a specified interest in a non-U.S. bank account. The FATCA (Foreign Account Tax Compliance Act) reporting requirement necessitates taxpayers to report specified foreign financial assets using Form 8938. The U.S. government and IRS have made enforcement a top priority for FBAR and FATCA reporting. These compliance requirements are nightmares to navigate alone. Clients need an attorney who's actually dealt with FBAR and FATCA issues for both individual taxpayers and businesses, because the rules and penalties are different for each.

Reporting Gifts from Foreign Persons
Foreign gifts over certain amounts trigger Form 3520 filing requirements. People have been hit with massive penalties for not filing this form, even when they didn't owe a dime in taxes on the gift itself. The IRS doesn't care—miss the form, pay the penalty. Oftentimes, taxpayers realize too late that they should have filed the form, leading to the maximum penalty, which in such cases is 25% of the value of the gift. Having an international tax advisor by your side can help avoid this penalty.

Filing Foreign Corporation & Partnership Information Returns
If taxpayers have ownership or interest in a foreign corporation or partnership, they have several reporting and filing requirements. Fulfilling these requirements demands attention to detail and expert legal insights to avoid unnecessary taxation issues. Taxpayers may have to file Form 5471 or Form 8865 according to their unique situation. They may be subject to fines and penalties if they do not file these forms on time. International taxation experience helps clients accurately file these forms to avoid legal troubles.

Avoiding and Minimizing Offshore Penalties
Taxpayers may sometimes receive notices such as CP15 notices, 504 notices, or audit requests for international taxation-related penalties. These penalties can be prevented, minimized, or abated using international tax preparation services and penalty defense strategies.

Foreign Trust Compliance
U.S. beneficiaries of foreign trusts face complex reporting obligations that can result in severe penalties for non-compliance. Mixon Tax Law helps clients understand their obligations and ensure proper reporting on Forms 3520 and 3520-A.

Treaty Benefits and Planning
International tax treaties can provide huge savings on cross-border deals—lower withholding taxes, exemptions from double taxation, that kind of thing. But the IRS and foreign governments don't just hand out these benefits. The firm works with clients to structure transactions properly and handle all documentation requirements to actually get the treaty protection.

Transfer Pricing Documentation
Multinational businesses must maintain proper transfer pricing documentation to support intercompany transactions. Mixon Tax Law assists with transfer pricing studies, documentation requirements, and defense of transfer pricing positions during IRS examinations.
Frequently Asked Questions
Foreign Account Reporting Requirements
Voluntary Disclosure Programs
Business International Tax Issues
Individual International Issues
Why Choose Mixon Tax Law for International Tax Matters
International tax work requires someone who’s actually done this before and knows where all the landmines are buried. Clients don’t want to learn about FBAR penalties the hard way, and they definitely don’t want to experiment with voluntary disclosure procedures. Learn more about Phillip’s background and understand why this approach has kept so many clients out of serious trouble.
His CPA background helps him understand technical requirements and navigate complex international financial structures. The legal training is what saves clients from catastrophic penalties and criminal exposure. International tax isn’t just about compliance—it’s about survival when the government decides to make an example out of someone.
Here’s what Mixon Tax Law brings to international tax situations:
Dual Professional Expertise
CPA knowledge of complex international reporting combined with legal advocacy for penalty defense provides comprehensive protection.
Previous Employer's Firm Experience
M&A background at a previous employer's firm provides sophisticated understanding of international tax structures and compliance requirements.
Specialized Focus
Concentrated practice in international tax compliance and controversy matters ensures deep expertise in this complex area.
Penalty Defense Experience
Proven track record in international penalty abatement and voluntary disclosure programs protects clients from devastating financial consequences.
Business Understanding
Practical knowledge of how international tax rules affect real business operations translates into effective compliance strategies.
Client Success Stories
International tax problems can create devastating financial and legal exposure, but experienced representation often makes the difference between manageable compliance costs and catastrophic penalties. Read detailed client testimonials to see the results achieved for individuals and businesses facing international tax challenges.
Matt Holmes2025-04-11Trustindex verifies that the original source of the review is Google. Phillip is extremely knowledgeable and was a pleasure to work with. He communicated with me throughout the entire process, asked all the right questions, and ended up saving me more money than I could have imagined. I highly recommend Mixon Law. Leticia Garcia2025-02-26Trustindex verifies that the original source of the review is Google. Mr Mixon has been a great help on my case, he’s very professional and caring about his clients. I would highly recomend him for any tax problems, he will make sure you understand every step of the way Tristin Tauzin2025-02-25Trustindex verifies that the original source of the review is Google. Having the pleasure of working with Phil over the past few months - I have learned that Philip Mixon is a top-tier tax attorney specializing in tax controversy and R&D tax credits. His deep expertise and client-focused approach ensure businesses get the results they need. Philip has successfully helped countless clients navigate complex tax matters, making him the go-to tax attorney in Houston and the surrounding areas. If you're looking for trusted tax law guidance in Houston, The Woodlands, Sugar Land, or beyond, Philip Mixon is the expert to call. Saul Rodriguez2025-02-19Trustindex verifies that the original source of the review is Google. Worked with Phillip on my tax issues and was very helpful. Very professional made it easy . Definitely recommend . Chris Smith2025-02-06Trustindex verifies that the original source of the review is Google. Mr. Mixon helped me setup my LLC and non-profit subsidiary. He was highly responsive, even if he was unavailable at the moment, and demonstrated the type of reliable professionalism that is rare in this day and time. I highly recommend his services! Gabriel Elpers2025-01-06Trustindex verifies that the original source of the review is Google. Phillip was extremely kind, courteous and professional in answering all my tax-related questions. Thank you for your help! Kimberly Dean2025-01-03Trustindex verifies that the original source of the review is Google. Great experience. Phillip was very professional and pleasant to work with. He successfully resolved my issue which saved me money, time, and stress! I would definitely work with him again if the need arises. Ashley Acosta2025-01-03Trustindex verifies that the original source of the review is Google. Mr. Mixon has assisted my family on getting our business and personal tax issues in order. He’s a great tax attorney that is very knowledgeable. professional, and efficient. I would highly recommend his legal expertise, and I would definitely use his services in the coming years if the need arises. Jennifer Elswick2024-12-06Trustindex verifies that the original source of the review is Google. Mr. Mixon has been such a blessing to me. He has assisted me in getting my business and my personal taxes in order. He is professional, kind, responds promptly, knowledgeable, and is just such a wonderful person. If you are in need of legal and or accounting services I highly recommend him. Joy Kring2024-12-02Trustindex verifies that the original source of the review is Google. Mr. Mixon with Mixon Tax Law resolved our case, during the process kept great communication with us every step of the way. Definitely five star service, if I could give more stars I would. Top notch Law firm, HIGHLY RECOMMEND
Meet Your International Tax Attorney
International tax matters require someone who understands both U.S. tax law and the practical realities of cross-border compliance. Phillip’s background combines previous employer’s firm international tax experience with focused legal practice in tax controversy and compliance matters.
Meet Attorney Phillip Mixon, a seasoned tax attorney in Houston with years of experience handling complex tax matters. From resolving IRS collections to providing tax planning for businesses, his wealth of experience and professional background guarantee that clients receive reliable legal representation in all tax-related matters.
He’s not just a local tax attorney; he’s also a Certified Public Accountant (CPA), a dual qualification that sets him apart in the field of tax law. Holding both his CPA license and Texas bar license, he offers a unique blend of legal and financial acumen that benefits clients in multifaceted ways.
Visit the attorney profile to learn more about qualifications and approach to international tax compliance and controversy representation.

Get Expert Help with International Tax Issues
International tax problems get worse every day they’re ignored, and the IRS isn’t getting more forgiving. If taxpayers have unreported foreign accounts, unfiled international forms, or received penalty notices, call the Houston office immediately.
Call (713) 814-4737 to discuss your situation. Phillip handles these consultations personally because international tax cases often involve potential criminal exposure that needs immediate assessment.
Whether dealing with unfiled FBARs, missed foreign corporation reporting, or considering voluntary disclosure, don’t try to navigate this alone. Too many people destroy their financial lives by handling international tax problems incorrectly. The government has made international compliance a priority, and they’re willing to impose severe consequences to prove their point.
If international tax help is needed, don’t wait until penalties become insurmountable. Schedule your consultation today and let Mixon Tax Law help resolve these matters before they become financial disasters.
International Tax Resources and Updates
International tax law changes frequently, with new reporting requirements, penalty provisions, and compliance programs regularly introduced. Staying informed about these developments is crucial for maintaining compliance and avoiding costly penalties.
The firm’s international tax blog regularly covers developments in international tax law, compliance requirements, and practical strategies for managing international tax obligations. These resources complement the personalized legal advice provided to clients facing specific international tax challenges.
Business Tax | IRS | Local Tax | International Tax
Phillip also maintains active involvement in international tax organizations and regularly attends conferences to stay current on developing issues that affect clients’ compliance obligations and planning opportunities.

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Experienced International Tax Representation You Can Trust
Phillip’s career began at one of the Big Four accounting firms, where he honed his skills in the Mergers and Acquisitions (M&A) tax department. At that firm, he played a pivotal role in advising clients on the tax implications of corporate transactions, ensuring compliance, and optimizing tax outcomes during high-stakes deals. This experience provided invaluable insights into the complexities of tax law and corporate finance, which he now leverages in current practice.
Today, he focuses practice on IRS and state controversy matters, including the complex international tax issues that arise in our increasingly global economy. His extensive background allows him to handle disputes with taxing authorities expertly, whether they involve domestic or international tax compliance matters.
Whether it’s negotiating with the IRS on international penalty matters, managing voluntary disclosure programs, or navigating complex international tax regulations, clients can trust they are in capable hands.