Allegiant Tax & Accounting Inc. is owned and operated by a State of Colorado licensed CPA. We provide solutions to your accounting, payroll or income tax needs at an affordable price.

Colorado Accounting & Tax Services

Serving Colorado’s Front Range from Denver to Colorado Springs

Allegiant Tax & Accounting, Inc. provides professional accounting services, bookkeeping services, payroll services, and tax preparation services for individuals and small businesses along the front range of Colorado. We provide an up front and honest approach to your situation and give you the personal attention that you should expect from a professional company. We would be happy to accommodate your busy schedule by working with you in person, over the phone, or through email. Please contact us today to discuss how Allegiant Tax & Accounting, Inc. can help you or your business with all of your accounting and tax needs.


My wife and I have both been very pleased with Allegiant Tax & Accounting, which is why we keep returning every year.  The rates are very reasonable, and we have always received very courteous, professional, and personal service every time.  We never worry when we provide our tax documents to Allegiant, we are very confident that everything will be handled appropriately, correctly, and in a timely manner.  We couldn’t be happier.

-Henry M.

I have worked with Keith Clark who is with Allegiant Tax and Accounting Inc., for the past 3 years. I am very pleased with all of my dealings and communications with him. He is also prompt in returning my phone calls and answering any concerns I have. I like that he is very knowledgeable.

-Peggy D.

I have nothing but good things to say about Allegiant Tax and Accounting, Inc. Your staff and service are amazing. I don’t dread tax time anymore because you are so easy and quick to work with! Thank you so much for your continued and dedicated service.

-Erin W.

We have used the tax services at Allegiant Tax and Accounting with Keith Clark for several years.  The service has always been quick and efficient.  We especially appreciate the technology that makes reviewing, signing, and paying for services seamless.  They are knowledgeable and responsive to questions. We would recommend them for all types of accounting services.

-Colleen B.

Prior to being referred to Allegiant Tax & Accounting, we experienced 2 years of very expensive mistakes by our previous tax guy.  We were very pleased with the service Allegiant Tax & Accounting provided to us and will continue to trust your company for many tax seasons to come.  Thank you very much.

-Lynne H.

We have developed a trusting relationship with Keith Clark at Allegiant for the past few years. We can depend on his tax accounting expertise and his willingness to answer our questions. This helps us make informed decisions as it pertains to our contracting business.

Day Marie S.

Allegiant pays attention to detail, provides excellent service, and is much more personable making everything so seamless and easy.  We have recommended Allegiant to family and friends who are also much happier with the service than their previous CPA’s / Providers.  We are confident in the results and suggestions that Allegiant Tax & Accounting, Inc. provides us each year with regards to filing our taxes.  Thank you for such great service!

-The Harrison Family

Lost under a mountain of tax documents?

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Experienced Federal & State
Income Tax Professionals

Allegiant Tax & Accounting, Inc. provides solutions to your federal or state income tax needs at an affordable price. The preparation and filing of your federal and/or state income taxes will be handled carefully, accurately and timely by a State of Colorado licensed CPA. Working with a CPA not only gives you peace of mind, but will likely result in additional savings, especially if your tax return has become too complex. We will give your tax return the time it needs and ensure you get the best tax treatment possible for your situation at affordable rates.

Small Business Tax &
Accounting Services

As a small business owner, you have more important things to do than to worry about accounting related issues. Accounting, payroll and filing tax forms can be very time consuming. If these functions are not performed in a timely and accurate fashion, they can affect your ability at building business credit and financial success. Our mission is to relieve you of the burden of accounting, bookkeeping and taxes. With professional accounting and bookkeeping services from Allegiant Tax and Accounting, Inc., you can concentrate on building and maintaining your business.


Pass off the number crunching to us.

You have better things to worry about.


Where We Work

Allegiant Tax & Accounting, Inc. provides services for the greater Denver area and central Colorado area. We have offices all across the Front Range in order to make it easier to sit down with our clients and get to know their unique situations. Check out our six available locations to find out which is the most convenient for you!


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Localized Knowledge

Tax codes can vary widely from state to state and it’s very important to know the differences. Allegiant Tax & Accounting, Inc. is a Colorado-certified, local business making us especially qualified to help your business or family. We’re from Colorado, we know Colorado, and we have many years of experience its unique tax laws.