About us
SIM TAX was founded by Barbara Chrzanowska, EA, PMP — a tax strategist with over a decade of experience at the world's top advisory firms, advising private equity groups, high-net-worth individuals, and growing businesses.
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.
Every number is checked. Every strategy is documented. We do not guess — we verify.
We think like a partner in your business, not a vendor who appears at tax time.
You always know what we are doing, why, and what it means for your bottom line.
Barbara's career spans every major tier of professional tax advisory — from associate to director — at four of the world's most respected firms.
Tax Associate - Corporate Tax
Developed deep expertise in cross-border taxation, FBAR/FATCA compliance, and fund-level tax structures for institutional investors.
Tax Associate - Private Client Services
Directed tax strategy for a $2B+ client portfolio. Built and mentored high-performing advisory teams while personally overseeing complex planning engagements.
Sr Tax Accountant
Trained in Big Four rigor — complex high-net-worth returns, multi-state compliance, and international structures for private clients.
Assistant Tax Manager
Led engagements for private equity portfolio companies and growing family offices across the Southwest and Midwest.
Tax Manager
Trained in Big Four rigor — complex high-net-worth returns, multi-state compliance, and international structures for private clients.
Founder & Principal Advisor
Founded SIM TAX to bring institutional-grade tax strategy to entrepreneurs, investors, and families who deserve more than a standard return.
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.
