About

My name is Onesima Martinez, founder of ONE STOP TAX SERVICES LLC. I am a dedicated business professional with extensive experience in administration, financial oversight, operations management, and client services. My passion is helping individuals, families and small business owners navigate the tax process with confidence and peace of mind.

With an MBA from the University of Illinois at Chicago and years of experience managing complex operations, I bring attention to detail, professionalism, and a commitment to accuracy to every client I serve. I understand that taxes can be overwhelming, which is why I focus on providing personalized service, clear communication, and solutions tailored to each client’s unique financial situation.

As a bilingual professional fluent in both English and Spanish, I take pride in serving diverse communities and making tax services accessible to everyone. My goal is not only to prepare tax returns accurately but also to help clients better understand their finances and make informed decisions for the future.

At ONE STOP TAX SERVICES LLC, integrity, trust, and exceptional customer service are at the heart of everything we do. Whether you’re filing as an individual, managing a small business, or planning for financial growth, I’m here to help you every step of the way.

Thank you for trusting us with your tax and financial needs. We look forward to serving you!