Accounting Firms Denver

About Mueller Accounting & Tax Services, Inc.

We’re in the business of helping yours

tax services denver
Tax Accountant Denver

Running a business is often a very tough thing to do. You have a million things on your plate, all the time, and they all seem like high priorities. From marketing to inventory management from signage to employment regulations from creating a great brand reputation to getting your taxes filed on time.

Most business owners still find their work (their calling in many cases) to be extremely rewarding but also extremely trying.

Taxing, even!

I’m Cathy Mueller, and I get it. I founded my firm, Mueller Accounting & Tax Services, with the simple mission of giving business owners the accounting and tax help they really need with a focus on responsiveness and developing solid, trust-based client relationships.

It’s my passion.

If you’re looking for a place to do your accounting business where you know you’ll get the best advice and service where your phone calls (and questions) will be answered and your concerns addressed where you will always feel appreciated (because you’ll always be appreciated), give us a try.

We’re Mueller Accounting & Tax Services, we’re in the business of helping yours and we want to earn our next rave client review from you.

We want to be your business tax advisors and your accountants for life.

Make An Appointment Today For Your Free Initial Consultation


Mueller Accounting & Tax Services

Mueller clients always get solid advice, timely help, and caring service

Ever feel like your accounting firm treats you as though you (and your firm) exist to be of service to them?

We hear too many stories from our clients about the trouble they’ve had with other firms. Inaccurate work, poor advice, an attitude and a mindset that seems to say “Im too busy to return your calls. I’m too busy to answer your emails. I’m too busy for you.”

Or, even worse, a tendency to talk down to or even scold their clients.

Hey, we know what you’re up against as a business owner. We know it’s a lot to juggle. And we appreciate what it takes to keep the doors open and the lights on! It can be easy to fall behind.

Our clients no longer have to worry about falling behind on their accounting and tax chores. We take care of those things for them so they can take care of running and growing their businesses.

At Mueller Accounting & Tax Services, our brand is based on accuracy, timeliness, responsiveness, and empathy developing and nurturing our client relationships, and delivering the help businesses and individuals really need from their accounting firm.

I am so so happy I found Mueller Accounting & Tax Services!
Cathy has been absolutely wonderful with helping me with my small business.
I first saw Cathy to review taxes that I was filing myself
and it very quickly turned into me handing everything over to her to save me stress, time, and money.
Cathy is knowledgeable, detail oriented, efficient, and extremely personable.

5 star rating review - denver accountant

Kimberly B., via Google

Mueller Accounting & Tax Services: The perfect choice for


  • Small Business Owners Let us take the accounting and tax to-dos off your plate, so you can focus on running and growing a great business.
  • Businesses Who Feel Ignored We’ll answer your phone calls, and respond to your emails. We are not too busy for you and we never will be!
  • Individuals Who’ve Fallen Behind We understand how easy it is to get upside-down on your personal tax situation especially if you’re busy running a business. We can help!
  • People With Complex Tax Situations Some individual tax filings need to be handled like a business and that’s something we do very well at Mueller Accounting & Tax Services.
  • Anyone Who Wants The Very Best Accounting Service! Our five-star appreciation from our clients is something we treasure. Let us earn our next rave review from you.


Mueller Accounting & Tax Services
We’re In The Business Of Helping Yours