What services does DWK Tax & Accounting offer?

DWK Tax & Accounting offers tax preparation and planning, bookkeeping, accounting, business advisory, and outsourced CFO services for individuals and small businesses in Wheaton, IL and DuPage County.

Where is DWK Tax & Accounting located?

DWK Tax & Accounting is based in Wheaton, Illinois, serving clients throughout DuPage County including Naperville, Glen Ellyn, Lisle, Downers Grove, and the greater Chicago suburbs.

Do you work with small businesses?

Yes. DWK Tax & Accounting specializes in serving small business owners, entrepreneurs, and growing companies who need more than basic tax compliance, including strategic advisory and fractional CFO support.

How do I schedule a consultation?

You can schedule a consultation by visiting https://dwkcpa.com/contact, calling (708) 369-0044, or emailing david@dwktaxaccounting.com.

Do you serve businesses and residents in Warrenville?

Yes. DWK Tax & Accounting provides CPA services to Warrenville businesses and individuals. David Korzeniowski, CPA offers tax preparation, bookkeeping, payroll, and advisory services to the Warrenville community year-round.

What types of Warrenville businesses do you work with?

We work with Warrenville's small businesses, professional service firms, contractors, and technology companies. Warrenville's proximity to research and technology hubs means we also handle tax situations involving R&D, equity compensation, and specialized industry deductions.

Can you help my growing Warrenville business with cash flow planning?

Absolutely. Growing businesses in Warrenville benefit from our cash flow forecasting, financial reporting, and strategic advisory services. We help you see your cash position weeks ahead and make informed decisions about hiring, expansion, and investment.

Do you provide individual tax preparation for Warrenville residents?

Yes. We prepare individual tax returns for Warrenville residents, including those with complex situations, self-employment income, investment income, rental properties, and multi-state filings. Every return is prepared by or reviewed by David Korzeniowski, CPA.

How do I get started?

Call (708) 369-0044 or use our contact form to schedule a free consultation. We will discuss your needs and recommend the right combination of services for your business or personal tax situation.

Warrenville, Illinois

CPA in Warrenville, IL

Warrenville is a growing community with a mix of established neighborhoods, emerging businesses, and proximity to research and technology centers. DWK Tax & Accounting provides CPA services to Warrenville businesses and residents, offering tax preparation, bookkeeping, payroll, and strategic advisory. David Korzeniowski, CPA delivers the financial expertise that growing Warrenville businesses need, with the personal attention of a dedicated local advisor.

CPA Services for Warrenville

Individual and business tax preparation

Monthly bookkeeping and financial statements

Cash flow planning and forecasting

Tax planning and strategy

QuickBooks setup and cleanup

Payroll processing and compliance

Business advisory and growth planning

IRS representation and tax resolution

Our Services

Tax Preparation Cash Flow Planning Business Consulting Monthly Bookkeeping

Growing with Warrenville

Warrenville businesses that are growing need more than tax preparation, they need financial strategy. David Korzeniowski, CPA provides the cash flow planning, financial reporting, and advisory that growth-stage businesses rely on to scale successfully.

Whether you are hiring your first employee or planning a major expansion, you have a CPA who knows your numbers and is available to advise on every financial decision.

Schedule a Free Consultation

(708) 369-0044Serving Warrenville, Illinois

Why Choose DWK

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.

Meet David Korzeniowski, CPA Read Client Reviews View Success Stories

Frequently Asked Questions

Also serving: Wheaton, Naperville, Winfield, and communities throughout DuPage County.