We offer one-time and recurring accounting and tax services for small and medium businesses. We are bookkeeping professionals for 100s of businesses in the Chicagoland area.

  • Income Tax Preparation:
  • Business (forms 1065, 1120 and 1120S)
  • Payroll and sales tax preparation
  • Business accounting
  • W-2 and 1099 preparation
  • Business organization
  • Consulting


We love helping individuals and families file their taxes. We offer a personalized approach to every customer. We can help you file your taxes and maximize your return based on your unique situation.

  • Income Tax Preparation:
  • Individual (forms 1040)
  • Consulting
  • Tax Strategy
  • Life Events


We are value driven. We offer fair and competitive pricing for all of our services. We offer many services under one roof to help you save time and money.


Having lived around the globe, I have used many tax firms and Andrew Kozak is definitely recommended by my wife and I as highly professional, competent and friendly. He has helped reduce one area of stress for us considerably!

Michael & Ursula Hansen / RAE Systems

I’ve been using Chicago Accounting & Tax Services for 4 years now. Andrew, and his staff are so accommodating. I really appreciate their attention to detail with both my personal, and business returns.

James P / Executive

I used many different accounting firms but only Chicago Accounting & Tax Services helped me to get the highest tax return. I’m very satisfied with Mr. Andrew Kozak and his crew.

Barbara / Niles, IL

Chicago Accounting & Tax Services offered me the best accounting support that I needed at a reasonable price. I’m very happy that I gave my books under the charge of Andrew Kozak.

Christopher / Chicago, IL