About us

Experience that empowers real businesses.

SIM TAX was founded by Barbara Chrzanowska, EA, PMP — a tax strategist with over a decade of experience advising private equity groups, high-net-worth individuals, and growing businesses.

Our Purpose

Barbara built SIM TAX with one clear purpose — to take the depth, precision, and discipline of Big Four experience and make it accessible to the people who drive the real economy: entrepreneurs, investors, small and medium-sized businesses, and private families.

After years at PwC, EY, BDO, and RSM, she saw the gap between institutional tax planning and what most business owners actually receive — fragmented advice and little strategy. SIM TAX was founded to change that.

Our Philosophy

We believe that true success in tax advisory isn’t just about numbers — it’s about clarity, confidence, and strategic partnership. Every engagement begins by understanding your goals, then designing a plan that makes the tax side of your business work for you — not against you.

As SIM TAX continues to grow, new advisors will join under the same philosophy: strategic depth, technical excellence, and simplicity that delivers results.

Our Founder

Barbara Chrzanowska’s leadership is defined by calm precision, empathy, and a genuine commitment to clarity. Her background in complex private client and fund-level taxation helps clients align structure with strategy — whether growing an enterprise, managing a legacy, or planning generational wealth.

Today, SIM TAX operates as a boutique advisory dedicated to helping visionaries build resilient businesses — and focus on what they do best: growing their enterprise, legacy, and impact.