David Korzeniowski, CPA
Founder & Principal CPA, DWK Tax & Accounting
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, working directly with every client, every time.
Unlike national firms or franchise tax chains, David provides year-round access to a licensed CPA who understands your full financial picture. Every tax return is prepared and reviewed by David personally, not handed off to a seasonal employee.
David Korzeniowski
CPA, State of Illinois
Professionally Licensed & Accredited
David's CPA license is issued by the State of Illinois and requires ongoing continuing education, ethical standards, and professional accountability. These credentials are not just letters after a name, they represent a commitment to professional excellence.
Licensed CPA, State of Illinois
Passed the Uniform CPA Examination, met the 150-credit-hour education requirement, completed the experience requirement under a licensed CPA, and maintains active licensure through the Illinois Department of Financial and Professional Regulation.
AICPA Member
Member of the American Institute of Certified Public Accountants, the national professional organization that sets standards for CPA practice, ethics, and quality control.
Illinois CPA Society
Member of the Illinois CPA Society, the state professional association representing CPAs in Illinois with resources for continuing education, advocacy, and professional development.
Continuing Professional Education
Completes ongoing continuing professional education (CPE) each year to maintain the CPA license, covering tax law changes, accounting standards, ethics, and industry developments.
Corporate-Level Expertise, Delivered Personally
David founded 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 meant for their business trajectory. They had tax preparers who appeared in April and disappeared by May. They needed a CPA who understood their business year-round, and that is exactly what David provides.
With 8+ years of public accounting experience, David has worked with businesses across a wide range of industries, contractors, restaurants, medical practices, law firms, e-commerce, real estate investors, and more. This cross-industry experience means he has seen the patterns, the pitfalls, and the strategies that work. When he advises on entity selection, tax planning, or cash flow management, the recommendation is grounded in real experience, not generic templates.
David's approach is built on three principles: integrity, every recommendation is honest and transparent; partnership, clients are partners in a shared journey, not account numbers; and proactive strategy, anticipating challenges and capturing opportunities before they pass.
Areas of Expertise
A Five-Step Process Built on Strategy
Tax planning at DWK is not a one-time event. It's a continuous, structured process designed to keep more of your revenue working inside your business.
Understand Your Business
Before recommending anything, David takes the time to learn how your business operates, what your goals are, and where the financial pressure points are. Strategy without context is just guessing.
Optimize Your Structure
Entity selection, sole proprietor, LLC, S corp, C corp, has a major impact on your tax burden. David evaluates whether your current structure is optimal and guides changes when warranted.
Plan Year-Round
Tax planning isn't a December activity. David reviews your situation throughout the year, adjusting estimates, timing deductions, and capturing opportunities before they expire.
Execute & File Accurately
When it's time to file, every return is prepared and reviewed by David personally. Accuracy, compliance, and strategic alignment, every time.
Review & Refine
After filing, David reviews the results, identifies what worked and what could be improved, and refines the strategy for the year ahead. Continuous improvement, not a one-time transaction.
Specialized Knowledge Across Industries
David has worked with businesses across a wide range of industries. Each has unique tax considerations, accounting challenges, and growth dynamics, and David brings industry-specific knowledge to every engagement.
What Sets David Apart
Direct CPA Access
You work directly with David, the licensed CPA who prepares your returns and knows your finances. No account managers, no handoffs, no offshore teams.
Cross-Industry Expertise
8+ years across contractors, restaurants, medical practices, law firms, e-commerce, and more. David has seen the patterns and pitfalls across industries, that experience informs every recommendation.
Proactive, Not Reactive
David reaches out when there's an opportunity or a concern, not just at tax time. Clients appreciate having a CPA who flags issues before they become problems.
Honest, Transparent Advice
Every recommendation is honest and transparent. If a strategy doesn't make sense for your situation, David will tell you. No upselling, no unnecessary services.
Serving DuPage County & Western Suburbs
Based in Wheaton, Illinois, David serves clients throughout DuPage County and the western suburbs of Chicago, including Naperville, Downers Grove, Glen Ellyn, Lombard, and surrounding communities. View the full list of communities served on our service areas page.
View All Service Areas