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John David Claudell
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About John
Biography
I am a Tax Attorney who works with clients across Colorado. I specialize in reducing and resolving tax liabilities with Internal Revenue Service and Colorado. I also prepare back and current tax returns for individuals and businesses and defend clients in IRS examinations and audits. I received my law degree from the University of Colorado in 2000 and have been in private practice for 15 years.
My goal is always to find a permanent solution to your tax problem. I always strive to achieve the best possible results in the shortest amount of time and at the lowest cost. I always try to treat my clients like friends and family.
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 Boulder, CO. My family and I enjoy all of the outdoor activities that Colorado has to offer, including camping, hiking, biking, skiing, snowboarding and running.
Have a tax problem ? Call and I'll go through all of your available options. Free Consultation!
I'm a Tax Attorney with 15 years experience solving all types of tax problems and debts.
Practice Areas
4
Practice Areas
Tax
85%
25 years | 625 cases
Bankruptcy and Debt
5%
25 years | 15 cases
Business
5%
25 years | 10 cases
Tax Fraud and Tax Evasion
5%
25 years | 20 cases
Fees and Rates
Cost
Payment Methods
- Cash
- Check
- Credit Card
Licenses
Licensed in Colorado for 26 years
State: Colorado
Acquired: 2000
No misconduct found
Location
Law Offices of John David Claudell
(720) 362-5099
Fax
6525 Gunpark Dr, Ste 370 #122, Boulder, CO, 80301
cotaxattorney.com/Gallery
Online Presence
Other places you can find John online.
John David Claudell's Reviews
Avvo Review Score
24 Client Reviews
Filter Avvo Reviews (24)
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Practice Areas
Showing 6 - 10 of 17 reviews | Case Results
Posted by Steve | January 22, 2020 | Tax
Steve P Trustee of my Mothers trust
I had/have a unique issue with a tax question, And did not know if I had a big problem or not. I talked with John and he explained that my situation was not a problem after all. I would recommend John to all my friends if they need any tax help Steve P
Posted by Daren | March 16, 2019 | Hired Attorney | Tax
IRS offer and compromise
John was really easy to work with, was very quick to respond to questions and reduced my IRS taxes owed by $190,000. I would highly recommend him to anyone with a tax debt owed to the IRS that you are wanting to try and get reduced.
Posted by Michael | February 26, 2019 | Hired Attorney | Tax
I Had Lost Hope. John Claudell Freed Me.
After years of a failing marriage and over $250,000 of tax debt, I found myself divorced and solely responsible for this debt. Working with John for the past 5 years, he has guided me through negotiations with the IRS and State of CO, helped me with achievable payment plans, and he gave me the confid...
Posted by D Jonathan | August 30, 2018 | Hired Attorney | Tax
ABSOLUTELY INCREDIBLE
John has been instramental in helping me with my back taxes and my current Taxes. John is an attorney that cares about you as his client and listens to details so he can provide the best service you deserve. He elevated my personal live by providing services regarding a back tax issue as well as I ...
Posted by anonymous | February 08, 2016 | Hired Attorney | Tax
Tax debt and unfiled returns
He is knowledgeable and professional and was able to discuss my long term issues with the IRS and resolve them. In such a stressful situation his competency and confidence made it so much easier. I would highly recommend him!
John David Claudell's Lawyer Endorsements
"I endorse this lawyer."
"John is honest, hard-working, creative and intelligent. Highly recommended."
Christopher Leroi
Tax fraud and tax evasion lawyer | Aug 26
Relationship: Fellow lawyer in community
"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."
"I endorse this lawyer."
Stephen Craig
Bankruptcy and debt lawyer
Nicholas Dooher
Real estate lawyer
Michael Wink
Bankruptcy and debt lawyer
Gigi Wink
Bankruptcy and debt lawyer
Experience
Work Experience
2012 - Present
Senior Attorney, John D Claudell Esq PC
2004 - 2012
Senior Attorney, Colonial Tax Consultants
2003 - 2004
Senior Associate, Omni Financial
Associations
2015 - Present
National Bar AssociationMember
2004 - Present
Colorado Bar AssociationMember
Education
1999
University of Colorado School of Law
Juris Docor
1996
Colorado State University
Bachelor of Arts
N/A
Baker University
Languages
English
Activity
Legal Answers
Legal Guides
Legal Answers
Q&A
How do I fill out my W-4 so that the max amount of taxes is being taken out?
18 Apr 2026
Q&A
Is settlement money for wrongful termination taxable?
02 Apr 2026
Q&A
A family member owes over $400,000 to irs. They own a 6th of a family home and land I live on.
08 Dec 2025