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- MI Tax LLC – Westbury’s Trusted Tax & Business Advisory Experts
MI Tax LLC – Westbury’s Trusted Tax & Business Advisory Experts
MI Tax LLC in Westbury, NY provides expert tax preparation, strategic planning, payroll, bookkeeping, insurance, and IRS resolution services — helping individuals and businesses maximize savings and stay compliant.

Comprehensive Financial & Business Services
Whether you’re an individual looking for accurate tax filing or a corporation seeking strategic consulting, MI Tax offers a full suite of services:
Tax Preparation – Personal and business returns, with a focus on maximizing deductions and ensuring full compliance
Employee Retention Tax Credit (ERTC) – Helping businesses claim the maximum benefits available
Bookkeeping & Payroll – Streamlined processes to save you time and reduce costly errors
Sales Tax Outsourcing – Accurate calculations and timely filings for peace of mind
Business Insurance – Tailored coverage to protect against financial risks
IRS Resolution Services – Expert guidance in addressing and resolving tax issues
Incorporation & Licensing Assistance – Smooth, compliant business formation
Financial Consulting – Long-term tax planning, investment considerations, and wealth protection strategies
Why Nassau County Chooses MI Tax LLC
Over 17 Years of Consulting Experience – Serving small businesses, individuals, corporations, and high-net-worth clients
Client-Centric Approach – Every engagement is personalized to meet your unique financial goals
Up-to-Date Expertise – Staying ahead of tax law changes to keep you compliant and informed
Bilingual Service – English and other language support available for diverse clients
Proactive Strategies – Not just reacting to tax deadlines, but helping you plan year-round
What Clients Are Saying
"I can’t recommend MI Tax highly enough! Mark has been incredibly helpful in guiding my partner and me through the process of opening our first business together… It’s clear they genuinely care about their clients' best interests." – The Walk Inn
"The accounting needs for my two businesses are being expertly managed and fulfilled by MI Tax. Mark and his entire team are not only highly competent but also incredibly helpful… they go above and beyond." – Ali Anwar
With dozens of 5-star reviews, clients consistently highlight MI Tax’s professionalism, responsiveness, and ability to uncover valuable tax savings.
📍 Address: 320 Post Ave, Suite 108, Westbury, NY 11590
📞 Phone: (516) 500-5000
📧 Email: [email protected]
🌐 Website: mitaxins.com
⭐ Rating: 5.0 (multiple verified client reviews)