Built on precision.
Driven by purpose.
Meet the Founder
Brentley Leitzell, CPA, MBA
Founder & Managing Director
Brentley Leitzell is a Certified Public Accountant and the founder of Spartan Tax Group. A retired Coast Guard veteran, his service shaped everything about how he approaches this work — the precision, the accountability, and the refusal to cut corners.
Before founding Spartan Tax Group, Brentley gained experience in public accounting at a top national firm — and what he saw there stayed with him. Talented professionals, impressive resources, and clients who were treated like transactions. Every question had a price tag. Every phone call ran a meter. He knew there was a better way, and he built it. Spartan Tax Group exists because clients deserve a real business partner — not a service provider who disappears between billing cycles.
His experience spans the full spectrum — from individuals and small businesses all the way up to some of the largest corporations in the world. That range of perspective is rare, and it directly benefits every member of Spartan Tax Group. Whether you are navigating a complex business structure, managing personal investments, or facing a difficult situation with the IRS, you have someone in your corner who has seen it all.
Today, he leads a firm built around membership, not billable hours — serving business owners, entrepreneurs, and individuals across all income levels who deserve year-round guidance, not just a tax return once a year.
A different kind of firm.
Empowering Entrepreneurs
Entrepreneurship is the backbone of innovation and economic growth. We understand the unique challenges small business owners face — from formation to filing, from planning to growth. Our comprehensive tax and strategy services are designed to let you focus on building your business while we handle the complexity of staying compliant and tax-efficient.
Supporting Individuals
Quality tax advice should be accessible to everyone. For individuals with straightforward returns, we offer flat-fee tax preparation with the same precision and care you would expect from a top-tier firm. For those with more complex situations — rental portfolios, investments, multiple income streams, or significant life changes — membership may be the right fit, providing the same year-round guidance and strategic partnership we offer our business members.
Commitment to Excellence
Our firm's approach is deeply influenced by the disciplined and value-driven ethos of military service. This instills in us a relentless pursuit of excellence and a deep sense of responsibility toward every member we serve. We stay current with every change in tax law and strategy — not because we have to, but because you deserve nothing less. Our goal is not just results, but peace of mind.
Rooted in Community
Our responsibility extends beyond providing exceptional tax and financial services. We are deeply committed to the communities we serve — whether through pro bono financial guidance for nonprofits, supporting local entrepreneurs, or giving back through sponsorship and education. Being part of the community means more than doing business. It means building lasting relationships and contributing to the growth and prosperity of the people around us.
OUR MISSION
Trusted partners in your financial success.
Our mission is to deliver precise and tailored tax solutions that foster financial success for small businesses and individuals. Guided by the integrity and discipline instilled through military service, we prioritize client-focused relationships and excellence in every engagement. We are not just your tax advisors — we are your long-term financial partners, navigating complex tax landscapes with expertise and care.
Relationships first. Results always.
Our philosophy is grounded in a commitment to precision and integrity, ensuring every member receives personalized, expert guidance. We believe in building lasting relationships based on trust — delivering exceptional service tailored to the unique financial needs of each individual and business we serve. The deliverable is always the byproduct of a great relationship, never the other way around.
Who We Serve & How We Show Up
Core Values
Integrity
Doing what is right, even when no one is watching. Every recommendation we make is in your best interest.
Precision
Accuracy in every detail. Tax work demands exactness, and we bring that discipline to every engagement.
Excellence
A relentless commitment to the highest standards of professional expertise, staying current with every change in tax law.
Community
Our success is intertwined with the well-being of the community we serve. We give back because it is the right thing to do.
Partnership
You are not a client here — you are a member. That distinction changes how we work, how we charge, and how invested we are in your success.
Ready to Get Started?
Membership is currently open.
Join a firm that treats you like a partner, not a line item. Limited to 100 members.