Tax Individuals You Can Trust.
Our Comprehensive List of Services
At Shimotsu PLLC, we offer a full suite of services designed to simplify the process and give you peace of mind. Whether you're filing taxes, planning for the future, or managing your business finances, our experienced team provides tailored solutions to meet your unique needs.
Individual and Business Tax Preparation
Accurate and hassle-free tax filing tailored to meet your unique needs and maximize your returns.
Whether you need help with personal tax filings or complex business returns, our experienced CPAs offer tailored solutions to meet your unique tax needs.
Benefits:
Maximize Deductions & Credits
Accuracy & Compliance
Time & Stress Savings
Personalized Tax Strategies
International Tax Compliance
Comprehensive U.S. International Tax Compliance for International Businesses and Individuals
Navigating U.S. international tax reporting can be complex—especially when dealing with forms such as 5471, 8865, 8858, 926, and 5472. Our firm provides specialized compliance and advisory services to ensure your foreign-owned entities and cross-border investments meet all IRS filing requirements while minimizing the risk of penalties. We handle every detail—from entity classification and ownership analysis to income attribution and disclosure planning—so you can maintain compliance with confidence.
Benefits:
Proactive Tax Savings
Year-Round Guidance
Compliance & Risk Reduction
Optimized Business & Personal Finances
International Tax Consulting
Strategic International Tax Consulting for Cross-Border Businesses
Our international tax consulting services help businesses and individuals structure their cross-border operations efficiently while maintaining full compliance with U.S. and foreign tax laws. We advise on entity selection, tax treaty planning, repatriation strategies, and inbound investment structuring to minimize global tax exposure. Whether expanding into the U.S. market or managing existing international holdings, we deliver clear, practical guidance designed to optimize after-tax returns and ensure every decision aligns with your long-term objectives
Benefits:
Cash Flow Planning
Penalty Avoidance
Global Tax Minimization
Compliance & Risk Mitigation
Financial Reporting
Organized and precise financial records to help track performance and make informed decisions
Our financial reporting services provide accurate, real-time insights into your finances, helping individuals and businesses make informed decisions. From transaction recording to customized financial statements, we ensure your records are organized, compliant, and optimized for growth.
Benefits:
Accurate Financial Records
Improved Decision-Making
Time & Cost Efficiency
Regulatory Compliance
Meet Your Tax Professional
Marcus Shimotsu
Marcus Shimotsu is a Certified Public Accountant specializing in U.S. international tax compliance and planning for foreign individuals and companies doing business in the United States. With extensive experience advising cross-border businesses, investors, and accounting firms worldwide, Marcus focuses on simplifying the complexities of U.S. reporting requirements—such as Forms 5471, 5472, 8865, 8858, and 3520—while developing strategies that align with each client’s global objectives.
Drawing on a background in corporate taxation and international structuring at Big 4 and large tax firms, Marcus provides tailored solutions that balance compliance with opportunity. His approach combines technical precision with practical insight, helping clients reduce exposure to costly penalties and navigate the intersection of U.S. and foreign tax regimes with confidence.
Marcus works with clients across the U.K., Asia, Europe, and beyond, offering a seamless advisory experience built on professionalism, transparency, and a deep understanding of international tax law.
Let's Get Started
Take the first step towards a stress-free tax season.
Contact us today, and let us show you how simple and efficient managing your taxes can be.