About Us

Mueller Accounting and Tax Services Inc. is dedicated to filling the accounting, bookkeeping and tax needs of small businesses and individuals. We boast a fully qualified team of financial professionals at our Littleton, CO CPA firm and offer a free initial consultation, so you can get to know us and learn about the services we offer.

When you become our client, you’ll always be treated like a valued customer. Some CPA firms are missing in action when you have a question - but not at Mueller Accounting and Tax Services Inc.. We have a passion for delivering great customer service, and we’re always happy to assist clients when they reach out to us. Every client request is treated as an opportunity to solidify our professional relationship by exceeding your expectations.

We invite you to call us now at 303-782-0303 to discuss our comprehensive list of accounting and tax services.


Meet Cathy Mueller, CPA

Cathy Mueller CPACathy Mueller is a Certified Public Accountant and the President of Mueller Accounting and Tax Services, Inc., a full-service accounting firm in Littleton, Colorado.

Cathy specializes in small business accounting and consulting and has ten years of experience preparing individual and business tax returns. She has been a small business owner for seven years so she truly understands the needs of small businesses and their owners.

Cathy earned her Bachelor of Science in accounting from Regis University and her CPA from the Colorado Society of Certified Public Accountants.

Cathy lives in Sheridan, Colorado with her husband and daughter. In her free time, she enjoys cooking, reading and weight lifting.