Proactive Tax Strategy | Multinational Expertise | IRS Representation That Gets Results
At ProTax, we don’t just file taxes, we build strategies that transform your financial future. Led by Enrolled Agent and Certified Fraud Examiner Nicolas Mathurin, we help individuals, families, entrepreneurs, and international clients save more, stress less, and stay protected.

From optimizing your entity structure to negotiating directly with the IRS, our tailored tax solutions are designed to reduce liability, maximize savings, and support you year-round. Whether you’re managing real estate, launching a startup, or navigating international income complexities, we deliver forensic-level accuracy, long-term planning, and real-world results.

We work with clients across the U.S, Caribbean, and other international markets, delivering powerful tax strategies, compliance guidance, and peace of mind.

✅ Notable Client Results
Saved $180K+ in taxes for a high-income real estate investor by reclassifying rentals and leveraging passive losses through a Real Estate Professional strategy

Delivered 400%–800% in tax savings for international clients by advising on optimal entity structures, generating $60K–$170K in savings for sole proprietors and S-Corps

Protected an international client earning $90K in Haiti from criminal exposure by backfilling 6 years of taxes under FEIE thresholds and avoiding audit risk

Prevented fraud allegations through forensic-level reviews and deep knowledge of IRS audit triggers, earning long-term trust and retention

Expanded tax efficiency for U.S. clients by designing multi-year strategies with CPA collaboration and targeted onboarding assessments


ProTax is your lifelong tax partner, offering personalized, expert tax and business advisory services across the U.S. and internationally. We specialize in:

Tax Planning & Strategy: Proactively lowering your tax bill with forward-thinking, multi-year plans

Tax Preparation: Accurate and compliant filing

PRO-TAX ADVISORY LLC

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PRO-TAX ADVISORY LLC

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