Cross-Border Tax Advisory and International Tax Services
If your financial life crosses a border, whether that’s a US LLC owned from abroad, income earned in more than one country, or a foreign entity that now has US filing obligations, generic tax help won’t cut it. We provide international tax services and cross-border tax advisory built specifically around this kind of complexity.
What Add-wise Tax handles
Form 1120-F — US tax return for foreign corporations with US-connected income
Form 5471 — reporting requirements for US persons with interests in foreign corporations
Form 5472 — reporting for foreign-owned US LLCs and corporations, a common and easy-to-miss requirement
Form 8865 — reporting for US persons with interests in foreign partnerships
Form 8858 — reporting for foreign disregarded entities
Form 8833 — treaty-based return position disclosures
Form 1042-S — reporting for US-source income paid to foreign persons
Form 6166 — US tax residency certification, often needed to claim treaty benefits abroad
SS-4 EIN applications for foreign-owned entities
Why clients trust Add-wise Tax
Cross-border tax work demands precision and judgment. We bring both to every filing and every conversation.
Professional expertise
We know the forms, the treaties, and the traps. You get work done right.
Personalized approach
Your situation is unique. We build a plan around your actual facts.
Clear communication
We explain what applies to you and why. No jargon, no confusion.
Modern advisory support
We stay available after filing. Questions, notices, and planning are handled with you.
Client Testimonials
Hear from people who stopped dreading tax season.
Your expertise and efficiency in handling Texas consultation filings and IRS reporting have been invaluable. We greatly appreciate your prompt communication and attention to detail, ensuring all requirements are met seamlessly. Thank you for your support!
I've worked with Add-wise Tax for many years and they have consistently provided expert level guidance on all tax and business related matters. As my company has scaled from a little more than 10 people to more than 100 a few years later, Sid Jain and Add-wise Tax have been critical in that growth. I would highly recommend Add-wise Tax.
Get the cross-border clarity you need
Book a consultation and get a clear plan for your international tax obligations.
Process
How We Work
Onboarding call
We start by understanding your specific tax and accounting situation, and what problems you are currently facing.
We prepare
Based on what we learn, we put together a proposal scoped to what you actually need.
Onboarding & Document Collection
We gather what's needed securely, and walk you through our work process for the project or recurring monthly support.
Ongoing Support
We're your one-stop support for evolving business needs with our expertise in CFO and tax advisory services.
FAQs
Answers to the questions we hear most from clients.
What is cross-border tax?
Cross-border tax covers any situation where your income, assets, or entities touch more than one country. That includes foreign-owned US LLCs, US persons with foreign corporations, and treaty claims. We handle the reporting and the planning.
Do you handle 5471s?
Yes. Form 5471 is one of the most common forms we prepare for US persons with interests in foreign corporations. We verify the filing categories and build the return from your actual records.
What about foreign-owned LLCs?
Foreign-owned US LLCs often trigger Form 5472 and other reporting. Missing these filings carries steep penalties. We confirm what applies to your entity and prepare everything correctly.
Can you claim treaties?
We prepare Form 8833 disclosures and help you claim treaty benefits where they apply. We also handle Form 6166 certifications for US tax residency. The goal is to pay what you owe, not more.
Do you advise year-round?
Yes. Cross-border tax is not a once-a-year problem. We stay available after filing for questions, notices, and planning decisions that affect next year’s return.
How do I get started?
Book a consultation. We will talk through your situation and determine the best path forward. There isno pressure and no jargon.
Your return deserves real attention
Book a consultation with Add-wise Tax and get the clarity you need to file.
Book a free consultation