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 manager — across four of the world's most respected firms.
Founder & Principal Advisor
Founded SIM TAX to bring institutional-grade tax strategy directly to businesses, investors, and families — without the overhead, rotating associates, or billing clocks of a large firm. Every client works with Barbara personally.
Tax Manager
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.
Sr Tax Accountant
Multi-state compliance, high-net-worth returns, and international structures for private clients.
Tax Associate — Private Client Services
Tax strategy for a $2B+ client portfolio across complex planning engagements.
Tax Associate — Corporate Tax
Cross-border taxation, FBAR/FATCA compliance, and fund-level structures for institutional investors.
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.
Client Reviews
5.0
8 reviews
Laura Nj
in the last week
I’ve been working with Barbara and the team at Simtax Accounting for several years now, and I honestly couldn’t recommend them more. As someone living and working in the US originally from another country, understanding…
Karen Gonzalez
a week ago
Barbara helped make my tax return really easy this year. Having received income in 3 different states last year, I was worried about messing something up so I decided to consult with an expert and I’m glad I did. All the…
Cyanthony HicksPunt
a week ago
Barbara did exemplary work on tax returns on behalf of multiple family members. In our first meeting with her, she was professional and thorough in her explanations, and that was reinforced in our email and phone exchang…
