Knox County CPA firm

About Action Tax

Action Tax is an experienced Knox County, IL CPA firm that makes our clients' financial welfare our top priority. We are dedicated to creating accounting solutions and reducing tax liabilities for every client. From new ventures to long-established businesses to individuals, we provide a high level of service to every client.

Our approach to accounting services is all about value. We offer the skills and expertise of a large CPA firm combined with the personal attention and responsiveness of a smaller firm. When you partner with us, we take the time to get to know you, understand your goals, and build an enduring professional relationship. We invite you to turn to us for bookkeeping services, financial projections, tax planning strategies, and all your business accounting needs.

Action Tax is right where you need us to be in Knox County. Request your free consultation through our website or call 309-760-0600 and get started now.

Meet Our Team

Aaron Christopher

Dr. Aaron Christopher, PhD, CPA

Dr. Aaron Christopher PhD CPA is the owner of Action Tax and Accounting and has over 20 years of tax and accounting experience having worked for Big 5 CPA firms, as an FBI Special Agent, and as the CFO of organizations with annual revenues over $100 million. He holds undergraduate and graduate degrees in Accounting and earned his doctorate at Claremont Graduate University.

Aaron specializes in complex returns for individuals with small businesses, farms, and rental property and for businesses needing tax, accounting, and payroll services. Aaron and his wife Ada are the proud parents of Aleah, age 8, and Archer, age 6.

Marilyn Carlson

Marilyn Carlson

2008 was Marilyn's first season at Action Tax. An entrepreneur herself, she works well with clients and is conscientious in learning all she can to further her knowledge in tax law.

Pam Padilla

Pam Padilla

Pam has spent much of her career in Real Estate, giving her great insight to persons with rental properties and small businesses. 2008 was her first season with Action Tax. She is eager to expertly serve her clients.

Donna Medina

Donna Medina, EA

After a long career in nursing and health care administration, Donna joined Action Tax upon retiring from OSF in 2016. We’re delighted to have her join our team. Donna is a licensed Enrolled Agent with the Internal Revenue Service. She is looking forward to doing your tax return.

Tom Ek

Tom Ek

After over 20 years of ministry and business leadership, Tom joins the experienced team at Action Tax with a servant’s heart ready to meet the tax needs of our community.