A Financial Partner Who Understands Your Business
DWK Tax & Accounting was founded on a straightforward belief: business owners deserve more than basic compliance. They deserve a financial partner who genuinely understands their goals, challenges, and vision and works alongside them to achieve it.

Built for Business Owners Who Demand More
Based in Wheaton, Illinois, DWK Tax & Accounting serves business owners, entrepreneurs, and growing companies who have outgrown basic tax preparation. Our boutique approach ensures every client receives personalized, strategic attention from a licensed CPA with more than 8 years of experience.
We built DWK Tax & Accounting because too many business owners were making critical financial decisions without adequate guidance. They had bookkeepers processing transactions but nobody helping them interpret what those numbers actually meant for their business trajectory.
From tax strategy and business advisory to outsourced CFO services, we provide the financial leadership that helps businesses make confident decisions, manage risk intelligently, and build toward sustainable growth.
What Drives Everything We Do
Integrity First
Every recommendation is built on honesty and transparency. We'll tell you what you need to hear, not just what you want to hear.
Client Partnership
We're invested in your success for the long term. Our clients aren't account numbers-they're partners in a shared journey.
Proactive Strategy
We don't wait for problems to find you. Our approach is built around anticipating challenges and capturing opportunities before they pass.
David Korzeniowski, CPA
Founder & Principal CPA
David Korzeniowski, CPA
David Korzeniowski is a licensed Certified Public Accountant based in Wheaton, Illinois with more than 8 years of experience serving individuals, entrepreneurs, and small businesses. He founded DWK Tax & Accounting to deliver the kind of personal, strategic financial guidance that most firms reserve for large corporate clients. David works directly with every client, bringing corporate-level expertise to businesses of every size.
A CPA Partner Who Invests in Your Success
Business owners choose DWK Tax & Accounting because they get direct access to a licensed CPA who understands their industry, their goals, and their numbers, not a revolving door of staff.
Licensed Illinois CPA
David Korzeniowski is a licensed Certified Public Accountant in the State of Illinois, not a seasonal tax preparer or a software dashboard. Every return is prepared and reviewed by a CPA who is accountable for accuracy and compliance.
Small Business Experience
8+ years working with contractors, restaurants, medical practices, law firms, e-commerce, real estate investors, and consultants across DuPage County. Industry-specific knowledge means better deductions and fewer surprises.
Year-Round Support
Tax strategy doesn't stop in April. David is available throughout the year for questions, planning conversations, and proactive adjustments, not just at filing season.
Proactive Tax Strategy
We plan ahead. Entity structure, timing, retirement contributions, and quarterly estimates are reviewed continuously so you keep more of what you earn, legally and strategically.
Personalized Planning
Every business is different. Recommendations are built around your specific circumstances, goals, and growth plans, never a generic template or a one-size-fits-all checklist.
Local & Accessible
Based in Wheaton, serving DuPage County and the western suburbs. You can call, email, or meet in person. No call centers, no overseas outsourcing, no account handoffs.