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John David Claudell

About me

I am a Tax Attorney located in Boulder and Denver Colorado. I specialize in reducing and resolving tax liabilities with Internal Revenue Service and all 50 states. I received my law degree from the University of Colorado in 2000 and have been in practice for over a decade.

My goal is always to find a permanent solution to your tax problem. I always strive to achieve the best possible results for you or your business in the shortest amount of time.


I was born and raised in Colorado and completed my undergraduate studies at Colorado State University in 1996.  I graduated with honors and then attended the University of Colorado School of Law in Boulder, Colorado where I received my Juris Doctorate in 1999.  I passed the Colorado Bar Exam in 2000 and have been practicing law ever since.


I currently reside in Louisville, CO where my wife and I are doing our best to raise three wonderful sons.  My family and I enjoy all of the outdoor activities that Colorado has to offer, including camping, hiking, biking, skiing, snowboarding and running.


Practice areas


  1. Tax: 100%
    15 years, 625 cases



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

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  • Curtis Harold Moore

    John is honest, hard-working, creative and intelligent. Highly recommended.


    Curtis Moore
    Relationship: Fellow lawyer in community

  • Christopher Daniel Leroi

    Mr. Claudell is an exceptional attorney. I have been an attorney for 24 years and served as a judge, magistrate, prosecutor, law professor, and private attorney. However, even with all of that experience, I learn from his answers on Avvo each and every day. If you have the chance, hire him in an instant.


    Christopher Leroi Mediation Attorney
    Relationship: Fellow lawyer in community


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
Senior AttorneyColonial Tax Consultants2004 - 2012
Senior AssociateOmni Financial2003 - 2004
Association namePosition nameDuration
National Bar AssociationMember2015 - Present
Colorado Bar AssociationMember2004 - Present
School nameMajorDegreeGraduated
University of Colorado School of LawLawJuris Docor1999
Colorado State UniversityHistoryBA - Bachelor of Arts1996
Baker UniversityN/AN/AN/A