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 provide CPA services to businesses in Lisle?

Yes. DWK Tax & Accounting serves Lisle businesses including those in the Lisle business parks, retail establishments, and professional service firms. We provide tax preparation, bookkeeping, payroll, and advisory services tailored to the needs of Lisle's business community.

Can you help with tax preparation for Lisle residents?

Absolutely. We prepare individual tax returns for Lisle residents, including those with W-2 income, investment income, rental properties, and self-employment income. David Korzeniowski, CPA ensures every deduction is captured and your return is filed accurately.

What makes DWK the right CPA for Lisle businesses?

Lisle businesses need a CPA who understands the local market and is available year-round. David Korzeniowski, CPA provides direct, personal service, no call centers, no junior staff. You work with the same CPA every time, building a relationship that improves your financial outcomes over time.

Do you work with Lisle's technology and professional service firms?

Yes. Lisle is home to many technology companies and professional service firms. We understand the accounting needs of service-based businesses, revenue recognition, contractor 1099s, R&D credits, and equity compensation, and tailor our services accordingly.

How do I get started with DWK Tax & Accounting?

Call (708) 369-0044 or use our contact form. We will schedule a free consultation to discuss your needs and recommend the services that fit your situation.

Lisle, Illinois

CPA in Lisle, IL

Lisle is a dynamic community with a strong business sector, Benedictine University, and beautiful forest preserves. DWK Tax & Accounting provides CPA services to Lisle businesses and residents, offering the full range of tax preparation, bookkeeping, accounting, and advisory services. David Korzeniowski, CPA brings the expertise of a corporate-level accountant with the accessibility and personal attention that Lisle's community values.

CPA Services for Lisle

Individual and business tax preparation

Monthly bookkeeping and reconciliation

Tax planning and quarterly estimated payments

QuickBooks setup and support

Payroll processing and compliance

Business advisory and financial planning

IRS representation and tax resolution

Financial reporting and cash flow analysis

Our Services

Tax Preparation Monthly Bookkeeping Payroll Services Business Consulting

Expertise for Lisle Businesses

From technology firms to retail shops, Lisle businesses need accounting that goes beyond data entry. David Korzeniowski, CPA reads the story behind your numbers and provides strategic guidance that helps you make better decisions.

Whether you are a growing service firm or an established Lisle business, you get the same direct CPA access that large corporations pay premium rates for, delivered with the personal touch of a local practice.

Schedule a Free Consultation

(708) 369-0044Serving Lisle, 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, Downers Grove, and communities throughout DuPage County.