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Derek William Kaczmarek

also known as Derek W. Kaczmarek

About me

I am the father of two wonderful children.  My wife is a fellow tax attorney, which makes for boring dinner conversation but a great way for clients to obtain multiple viewpoints without paying for multiple attorneys.


In my free time, I enjoy golfing and traveling. 


Photos and videos

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Practice areas


  1. Tax: 75%
    11 years, 1 thousand cases
  2. Tax Fraud & Tax Evasion: 25%
    11 years, 25 cases



Hourly ($350/hour)

Payment types:

Cash, Check, Credit card

Attorney endorsements

5 total 

Are you an attorney? Endorse this lawyer

  • Victoria A Bellomo

    Derek is an excellent trial attorney. He has an extensive background in IRS trial cases. We have worked together and I highly recommend him.


    Victoria Bellomo Tax Attorney
    Relationship: Fellow lawyer in community

  • Jason Scronic

    I endorse this lawyer.


    Jason Scronic Business Attorney
    Relationship: Worked together on matter

Contact info

Frazer, Ryan, Goldberg & Arnold

3101 N. Central Ave.
Suite 1600
Phoenix, AZ, 85012


AZActive 201105/23/2015
ILVoluntarily Inactive200407/24/2014
INInactive In Good Standing200310/31/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Certified Specialist - Tax LawState Bar of Arizona2013
AV Peer Review RatingMartindale-Hubbell2013
Bronze Medal Litigation AwardSB/SE Office of Division Counsel, I.R.S.2011
Cube AwardI.R.S. Office of Chief Counsel2007
Work experience
TitleCompany nameDuration
PartnerFrazer Ryan Goldberg & Arnold2014 - Present
AttorneySilver Law PLC2012 - Present
Senior AttorneyI.R.S. Office of Chief Counsel2005 - 2012
Association namePosition nameDuration
Scottsdale Bar AssociationBoard of Directors2013 - 2014
State Bar of Arizona, Tax Law SectionMember at Large2012 - Present
Western States Bar AssociationArizona Representative2012 - Present
State Bar of Arizona, Tax Law SectionTax Court Liaison2010 - Present
Indianapolis Bar Association, Tax Law SectionAt Large Member2008 - 2009
Legal cases
Case nameOutcome
Rainbow Tax Service, Inc. v. Commissioner, 128 T.C. No. 5Win
Donald W. Ernle v. Commissioner, T.C. Memo. 2010-237Win
Suzanne Vance Fain, a.k.a. Suzanne Fain-Poisson v. Commissioner, 129 T.C. No. 11Win
See all legal cases 
Publication nameTitleDate
Frazer, Ryan, Goldberg & Arnold client updateIRS Offers Incentives to Taxpayers with Unreported Foreign Income2014
Indiana Journal of Global Legal StudiesThe SEC's Role in the Global Era: How the SEC Will Protect U.S. Investors in Foreign Markets2002
School nameMajorDegreeGraduated
New York University School of LawTaxationLL.M.2005
Indiana University School of Law, BloomingtonN/AJ.D.2003
Indiana University-BloomingtonFinanceM.B.A.2003
Speaking engagements
Conference nameTitleDate
The Seth Leibsohn ShowCurrent Happenings in Tax2015
NBC 12 News (Phoenix)Lawyers on Call2015
Arizona Captive Insurance Association ConferenceOngoing battle between captives and the IRS2015
Tax SectionU.S. Tax Court Practice - an Update and Perspective2014
CPA Lunch & LearnUS Tax Court Procedure2014
Winter Tax SeminarWorker Classification, Section 530 Relief and the Voluntary Classification Settlement Program2013
UNLV CLE ProgramPresent Tax Controversies: Navigating the Process2013
Recent IRS Audit DevelopmentsForm 1099-K and Global High Wealth Industry Group2013
U.S. Tax Court Cases SymposiumEffective Use of Expert Witnesses in the U.S. Tax Court2012
I.R.S. Office of Appeals (Phoenix)I.R.C. 7430 and Qualified Offers of Settlement2012
2012 State Bar Annual ConventionFederal, State and Local Tax Law Update2012
2012 State Bar Annual ConventionTax Issues in a Down Economy2012
I.R.S. Basic Trial Advocacy SchoolTax Litigation2011
I.R.S. Special Enforcement Program Agent Group MeetingDeveloping Fraud Cases for Trial2010
West Virginia University's Advanced Fraud & Forensic Accounting ProgramAdvanced Fraud & Forensic Accounting2009
Who Stole My Child Tax Credit? Single Parents, Custodians and Child Tax CreditsChild Tax Credit2004