Built on expertise. Driven by people.
Tax Pro Alliance is a professional tax preparation, education, and professional development organization serving Southern California.

Diane Portugal
Diane Portugal brings over 15 years of experience in tax preparation to Tax Pro Alliance. Throughout her career, she has helped individuals, families, and business owners navigate their tax responsibilities with clarity and confidence.
An entrepreneur at heart, Diane founded Tax Pro Alliance with a dual purpose: to provide clients dependable, caring tax service, and to create a place where aspiring and experienced tax professionals can learn, lead, and grow.
Her leadership is rooted in integrity, accountability, and a belief that we all go further when we share what we know.
To deliver trustworthy tax preparation with care and clarity, and to develop knowledgeable, confident tax professionals through education, mentorship, and teamwork.
We Create Leaders.
We Work Together to Win.
We Don't Compete. We Grow Together.
