Chicago-Based CPA Firm

Chicago-Based CPA Firm

From bookkeeping and reporting to taxes and accounting, your finances are in good hands with Our full-service certified public accounting firm takes care of everything, so you won’t have to.

Talk to Your CPA
4000+ Satisfied Clients
We are proud to have over 1,000+ businesses and 3,000+ individual clients, many of them located nationwide.
38 Years of Experience
Since 1986, we’ve provided comprehensive tax and accounting solutions for individuals and businesses.
52 States and Territories
With our technology stack, we provide remote accounting services for you and your business, regardless the location.

Come to the Tax Professionals

With ever-changing rules and regulations, handling taxes can be a complex and often time-consuming process. can help create a hassle-free experience by ensuring that your bookkeeping is accurate and your tax bill is as low as possible.

Income Tax Preparation Services.

Income Tax Preparation

With up-to-date knowledge of tax policy, we’ll make sure your finances are compliant and save you money in the process.
Estate & Trust Tax Preparation Services.

Estate & Trust Tax

To ensure the best results, we tailor our fiduciary and estate trust tax management services to your unique situation.
Mergers and Acquisitions Services.

Mergers & Acquisitions

Our team has the knowledge and experience to help you tackle the complex challenges of mergers and acquisitions.
Liquidations & Reorganization.

Liquidations & Reorganization

When reorganizing and restructuring become stressful and confusing, we’re here to help ease the burden and protect your assets.

State & Local Tax

We can assist you in navigating the often frustrating process of managing your state and local taxes.

Find Out How We Can Help You

Leave the paperwork for the experts to handle. It's time to put your focus where it really matters while we work on saving you valuable time and money.

Contact Us Today

Professional Chicago Accounting Firm for You and Your Business

Professional Chicago Accounting Firm.

Whether you’re just starting out or running a long-time business, you know how difficult taxes and accounting can be. Our Chicago certified personal accountants can streamline your operations and manage your books so your company can continue to grow.

We Serve Your Industry

We work with a wide range of industries and businesses, as well as individuals, using a novel approach for each client in order to provide the highest quality accounting for their unique needs.

Our professional team will handle the finances and bookkeeping so you can achieve your goals and make growing your business your first priority.

From preparation to profitability analysis, a franchise requires a lot. That’s why our team is here to take care of your franchise’s financial future.

Because we understand the intricacies of not-for-profit accounting, we offer unmatched, specialized audits, consulting, and accounting services for your organization.

  • Healthcare
  • Real Estate
  • Law Firms
  • Retailers
  • Hospitality
  • Construction

And many more!

View all industries

We Plan, You Relax

Worried your business isn’t profitable or you’re overpaying during the dreaded tax season? It’s easy to get overwhelmed when you’re juggling so much. Let us help you get on track.

About Our Chicago CPA Firm

Over the years, Susan S. Lewis has used her vast experience and extensive knowledge to deliver exceptional accounting services to each and every one of her clients.

Since 1986, she has worked with our team of dedicated, hardworking professionals to provide a wide range of solutions to thousands of clients nationwide.

We aim to provide personalized solutions for each client.

Our first priority is to provide unparalleled tax and accounting services that will free our clients of headaches and hassle while helping them secure a financially healthy, profitable future.

We pride ourselves on seeing beyond just the numbers, we aim to provide personalized solutions for each client, ensuring they have the tools to grow and reach their goals.

Our Technology Stack

We utilize modern and cutting-edge software, hardware, and techniques to deliver the best results for our clients. With this technology, we guarantee unrivaled accounting services that reflect our clients’ business goals and audits that are accurate to the last decimal.

Great Level of Communication

Your success and satisfaction is our goal. That’s why we strive to maintain an open line of communication, keeping you in the loop on your accounts and finances and ensuring your concerns are heard, your questions are answered, and your needs are met.

Expedited Service

Our team has optimized our time management skills and streamlined our operations because we understand that reporting and bookkeeping run on a strict schedule. We make sure your accounting is completed as quickly as possible while being extremely thorough and maintaining excellent quality.

Susan S. Lewis, Ltd. - Partnering With You for Success

Since 1986, our Chicago CPA firm has strived to provide first-rate tax and accounting services to each of our clients, no matter the size of the company or the industry. We’re here to take away the headaches and stress of paperwork and planning, so you can sit back and relax.

Diane Williams photo.

Diane Williams

CPA, Tax Preparations & Financial Planning
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Dana Campbell

CPA, Financial Statement Audits & Assurance
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Dianne Carobus photo.

Dianne Carobus

CPA, Quickbooks & Financial Statements
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Chicago CPA Firm You Can Trust

We love going to see Sue every year at tax time and have done so for probably about 20 years now. She is very honest, kind, and incredibly knowledgable! We drive in from where we live now near Rockford each year. Awesome CPA!
Lee and Cindy Peterson
My husband and I have used Susan S. Lewis, Ltd. for several years. The office is professional, the staff is responsive, and most importantly the work is exceptional. The depth of Sue's knowledge and the support of her team are truly unmatched to other CPA's we have worked with over the years.
Marie Antoinette Zamora
An exceptional working relationship. I have been working with Susan Lewis, CPA for more than 20 years. She has provided excellent business and personal tax services, as well as small business advice. She and her staff are professional, knowledgeable, and responsive, and over the years, Susan's advice has been invaluable.
Donna Amstutz
Susan S. Lewis CPA is the best firm I have ever worked with. They are very helpful, honest, knowledgeable and always very kind.
Francisco Estrada
I have been working with Susan S. Lewis, CPA for over 17 years. Her dedication and expertise has kept me on track for both my personnel and business tax requirements. She comes prepared for all meetings and offers exceptional professional advice on all tax matters.
Jeff Wiktor

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