
Tax Services for Businesses
Your business deserves a customized approach to tax planning.
Tax Services for Businesses
Audit & Assurance Services
Financial success relies on having the right information at the right time.
Audit & Assurance Services
Business Advisory
Reach your goals more efficiently with the knowledgeable business advisory specialists at DHJJ.
Business Advisory
Financial Advisory
Financial success relies on having the right information at the right time.
Financial Advisory
What we do
Trusted Partners in business, taxes, and, financial well-being
At DHJJ, we leverage over 50 years of experience to drive financial success for businesses and individuals across Rockford. You have dreams and goals for your life and your business, and we shape our services around your objectives.
Rockford’s business community has trusted our team of over 100 CPAs, business advisors, and skilled professionals for decades. Whether you need wealth management, business advisory, or help with tax preparation and accounting, we’re here to help you and your business reach your full potential.
Nearest DHJJ Office to Rockford
Business Info & Hours
St. Charles Office
2560 Foxfield Rd #300, St. Charles, IL 60174
Phone Number
(630) 377-1106
Office Hours
Monday – Friday: 8:30 am – 5:00 pm
Weekends: Closed

Custom Approach to Taxes
The tax code is complex, and the right approach depends on your specific situation. Rockford businesses face a unique mix of Illinois state tax obligations and Winnebago County considerations that can significantly affect your bottom line. Our CPAs get to know your unique circumstances and build a personalized tax strategy around your goals, focusing on the value we deliver rather than the cost.
Accurate Accounting
Your accounting records are the window into your Rockford business. They give you insights into your business’s condition, growth potential, and helps you make business decisions. The right records are also critical for investors, lenders, and other stakeholders. Our team provides high-quality, accurate accounting to help you make strong decisions that support the success of your organization. You can even outsource your accounting, bookkeeping, and CFO responsibilities to DHJJ to give you more time to focus on the big picture.


Timely & Efficient Audits
Lenders, investors, and stakeholders working with Rockford businesses often require third-party audited financials. DHJJ offers the full spectrum of audit services, from compilations and reviews to full-scale audits, all carried out with easy-to-follow workflows that provide stakeholders with confidence in the accuracy of your financial statements.
Customizable Advisory Services
Whether you’re growing your Rockford business, developing your exit strategy, or preserving wealth for the next generation, our advisors provide personalized guidance at every stage. From launch to exit, our business advisors cover every aspect of your journey. We also offer wealth management and estate planning services to make sure your finances are working for you. Contact us today to get started.

Our Team
Professional. Personal. Customized expertise.
Recent insights

5 Tax Planning Opportunities High-Income Business Owners Should Evaluate in 2026
Key Takeaways Recent tax law changes have created new planning opportunities for high-income business owners. Pass-through entity elections…

When Should Business Owners Start Mid-Year Tax Planning? [Ask a DHJJ CPA Episode 8]
Tax season may end in April, but tax planning shouldn’t. Many business owners file their tax return and…

Sales Tax Increase Takes Effect August 1, 2026, in Six Northern Illinois Counties
Key Takeaways Sales tax rates are increasing on August 1, 2026, for taxable sales in Cook, DuPage, Kane,…








