• 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

  • KOS is Partnering with The Sports Shed - Kessler Orlean Silver is partnering with The Sports Shed, a local charity that collects, finds and distributes quality sports equipment to under-resourced kids in the Chicagoland area. KOS supports The Sports Shed’s mission in believing that kids benefit from engaging in sports and physical fitness and want to provide the means to help all kids achieve success. - KOS will be collecting new or... More →
  • When to Take Social Security Benefits - Difficult decision as retirement nears - If you are approaching retirement, one of the key decisions you will face is when to begin receiving Social Security benefits. It is not an easy call, and the answer usually depends on your personal circumstances. Keeping that in mind, here is a brief summary of the rules provided by the Social Security Administration (SSA). - Essentially, there are three... More →
  • How to Clear the Medical Deduction Hurdle - Don’t overlook common deductible expenses - In the past, it was difficult to qualify for medical expense deductions. Now, some pundits would say that it is “nearly impossible.” Based on tax law changes that took effect in 2013, most taxpayers can deduct only unreimbursed expenses in excess of 10% of their adjusted gross income (AGI), up from 7.5% of AGI under prior law. For taxpayers who... More →
  • KOS is Hiring! - KOS is a place where you can build a career that incorporates interesting assignments, training for new skill sets, a great company culture, and a reasonable balance between working and down-time. - Our firm is currently seeking talented, entrepreneurial-minded, advancement-oriented individuals for the following openings: Staff Accountant, Accounting Senior, Accounting Supervisor, Accounting... More →
  • Summertime Tax Credits - Summer is not only a fun time for kids, but may also be a source of tax credits for parents as well. - If your child is under13 years of age at the end of a tax year and they attend a day camp, you could be eligible for a Child and Dependent Care credit. - If the following apply to your family, you could receive a tax credit on your personal income tax returns. - Your child is going to a day... More →
"[KOS is] friendly, approachable, and always willing to help me find the answer to a question." - Joan Meyer La James International College