Professional CPA services since 1971
Tax, accounting, bookkeeping, payroll, auditing, compilation, and planning services for individuals, businesses, and organizations. We pride ourselves on providing the highest quality of work to our clients.
Experienced guidance for tax season and year-round decisions.
Chadwick and Company combines decades of professional practice with practical, responsive service. Whether you need a personal return, corporate filings, payroll help, bookkeeping, or planning support, our team is ready to help you move forward with confidence.
Tax return preparation
Federal and applicable state returns for individuals, corporations, partnerships, trusts, estates, gifts, and not-for-profit organizations.
Accounting support
Bookkeeping, payroll, sales tax, auditing, compilations, and registered agent services for businesses and organizations.
Planning and structure
Tax planning, corporate structure guidance, and estimated tax payment support to help you prepare before deadlines arrive.
Rooted in Crystal Lake and built on referrals.
Our firm began its professional practice in 1971 with Kenneth Chadwick, CPA. In 2006, Sascha Chadwick, CPA became owner and President after purchasing the business from his father. The firm’s growth has been driven by client referrals, professional relationships, and the success of the clients we serve.

Have a project in mind? Let’s get to work.
For a quote on tax, accounting, bookkeeping, payroll, auditing, compilation, or planning services, contact our office.