• Welcome to Kessler Orlean Silver!

    With an over 80-year history, the mid-sized accounting firm of Kessler Orlean Silver & Co., P.C., provides innovative accounting solutions to business owners, executives and managers, private investors, and professionals.

    Our down-to-earth style and practical experience come from a long-time culture of helping people and feeling passionate about doing so!

  • What Sets Us Apart

    We care. Pure and simple.

    ‘Above and beyond’ dedication to client service is our highest priority. Clients tell us they appreciate our accessibility and outstanding service. We believe it’s essential that you receive our close personal attention with prompt answers and new ideas.

    No situation is too tough or too routine. Every challenge is viewed with a fresh eye and resolved with a creative solution.

    By placing our service standards front and center in the way we conduct business, you can expect to receive the highest quality service while we help you improve your business or personal financials.

  • On the surface, accounting firms seem a lot alike. But some stand out from the crowd. So what makes KOS different? Our people. Sincerely caring, really listening, and then putting your outcome ahead of our interests. It’s our exuberant: to put you above all else.


    Based in Deerfield, a Chicago suburb, KOS serves businesses and individuals in multiple states providing business consulting, accounting and bookkeeping, and tax services.

Firm Profile

Learn more about the firm’s people, philosophies, and client service commitment.


Our monthly newsletter is available online and keeps you current on tax and financial matters.

KOS News Ticker

  • Geoff Harlow to speak at Joint Event - Geoff Harlow will be speaking on tax implications in planning for retirement at a Fidelity sponsored event entitled: The Health-Wealth Connection-Planning for Healthcare in Retirement on Friday, May 22nd. Fidelity Regional Vice President, Adam Coletti will be headlining the event with a presentation "Planning for Healthcare in... More →
  • KOS Supports the Aids Foundation of Chicago - KOS was a corporate sponsor at the Aids Foundation of Chicago annual gala on May 16, 2015. The gala was held at the Hilton Chicago and marked 30 years of action by the foundation. They are working tirelessly to change the course of the HIV epidemic in Chicago and across America. KOS is proud to support the foundation and all the work they have and continue to... More →
  • How to Give Feedback to Employees - Ways to improve business management - If you do not tell your employees what they are doing wrong, they might not get it right. But providing feedback to employees is not as simple as stating some obvious “do’s” and “don’ts.” If done properly, it can be motivating and inspiring. However, if done improperly, it can result in resentment, poor performance and deterioration of... More →
  • Key Lesson: Q's and A's on 529 Plans - A tax smart way to save for college - Despite recent proposals to scale back benefits, Section 529 plans remain a tax-favored way for parents to set aside funds for college. Here are the answers to several key questions on the subject: - Q. What exactly is a Section 529 plan? - A. It is a type of educational savings plan generally operated by individual states. If certain requirements are met, no... More →
  • Facts and Figures - Timely points of particular interest - Medicare - Many seniors may face higher Medicare premiums, thanks to a law President Obama signed last month that spares doctors who take on Medicare patients from a upcoming cutback in federal reimbursements. This premium hike will affect your tax planning for 2015 even though the potential increase will not take effect until 2018. This is because if you... More →
"[KOS is] friendly, approachable, and always willing to help me find the answer to a question." - Joan Meyer La James International College