Brandon Keim, Tax Attorney in Phoenix, Arizona
Over 15 years of legal practice · focused on Tax and Tax Litigation
Frazer Ryan Goldberg & Arnold LLP
Phoenix, AZ
Practicing tax in Phoenix since 2011.
- 15+
- Years practicing
- 1
- Bar admission
Practices in
Are you Brandon Keim?
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Quick answer
Brandon Keim is an attorney based in Phoenix, ARIZONA. The practice focuses on Tax and Tax Litigation. Brandon has over 15 years of legal experience. Currently practicing at Frazer Ryan Goldberg & Arnold LLP.
- Based in
- Phoenix, ARIZONA
- Experience
- over 15 years
- Known for
- Tax · Tax Litigation
- Handles Tax and Tax Litigation matters from Phoenix, ARIZONA.
- Over 15 years of practice as a licensed attorney.
- Recognized with Best Lawyers in America — Litigation and Controversy - Tax (2026).
About Brandon Keim: Brandon Keim is an attorney based in Phoenix, ARIZONA. The practice focuses on Tax and Tax Litigation. Brandon has over 15 years of legal experience. Currently practicing at Frazer Ryan Goldberg & Arnold LLP.
Areas of practice
Practice areas handled by Brandon Keim
Brandon concentrates on tax and tax litigation. Each area below outlines the kind of case Brandon handles, typical outcomes to expect, and how the intake process starts.
Tax cases in Phoenix, Arizona
Brandon takes tax matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Brandon agrees to represent you.
Tax Litigation cases in Phoenix, Arizona
Brandon takes tax litigation matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Brandon agrees to represent you.
Biography
About Brandon Keim — Over 15 years of Arizona tax experience
Brandon Keim is an attorney based in Phoenix, ARIZONA. The practice focuses on Tax and Tax Litigation. Brandon has over 15 years of legal experience. Currently practicing at Frazer Ryan Goldberg & Arnold LLP.
A Certified Tax Law Specialist, Best Lawyers® honoree, CPA, and senior partner in the firm, Brandon Keim combines litigation experience and a strong understanding of accounting and business concepts in tax matters to represent clients in defense of taxing authorities and provide strategic tax advice before a dispute arises.
Brandon joined Frazer Ryan after serving as a senior trial attorney with the Internal Revenue Service. At the IRS, he received the Chief Counsel National Award for Superior Achievement in Outstanding Litigation, and he was frequently recognized for his service as a trial attorney.
In 2015, Brandon successfully litigated the first Section 831(b) captive insurance case before the U.S. Tax Court; he litigated a second captive insurance case in 2016. For over four years, he oversaw and advised IRS attorneys and revenue agents auditing captive insurance transactions nationwide. Brandon also acted as an advisor to IRS attorneys on partnership and estate and gift tax matters and was an instructor at a national course designed to train new IRS trial attorneys on all aspects of practice.
Since his service as a senior trial attorney at the IRS, Brandon has fought hard to defend, and obtain successful results for, his clients, including:
- obtaining the first full IRS concession of a Section 831(b) captive case in Tax Court, after the IRS attorneys disclosed testifying experts and engaged in extensive discovery;
- obtaining full IRS concession of a $3.5 million civil fraud case involving unreported foreign bank accounts, where the client was forced to admit that returns were false;
- winning court determination that, in a quiet title action filed against the IRS, there was not a fraudulent transfer of property;
- discontinuance of an IRS criminal investigation, after referral to the Department of Justice for prosecution, involving allegations of tax evasion related to employment taxes;
- saving clients more than $40.3 million in federal income taxes through negotiated offers in compromise;
- obtaining IRS concession of a civil fraud case involving unreported business income that resulted in the client receiving a refund of a portion of the original tax paid;
- discontinuance of an IRS criminal investigation involving allegations of tax evasion and false statements in the offer-in-compromise process;
- winning dismissal of the IRS’s attempted disallowance of a $1.5 million charitable contribution, where the IRS failed to follow the proper partnership procedures;
- discontinuance of an IRS criminal investigation involving allegations of tax evasion and failure to report foreign bank accounts;
- obtaining “no-change” results for clients in IRS “wealth squad” (Global High Wealth Industry Group) audits;
- securing full IRS concession of a business valuation adjustment in an estate tax case; and
- winning court determination that the IRS acted arbitrarily and capriciously when it calculated foreign bank account reporting (FBAR) penalties.
Brandon’s clients benefit from his knowledge and experience in a broad scope of tax controversies. His services include:
- defending clients in civil audits by the IRS and local and state taxing authorities involving all types of tax, including income tax, employment tax, transaction privilege tax, excise tax, unemployment tax, and civil penalties;
- providing strategic prefiling tax advice to help clients avoid costly disputes with taxing authorities while ensuring clients pay no more tax than is legally due;
- representing clients in offensive litigation against the IRS and the United States involving wrongful collection actions, including seizures and liens, and suits to obtain refunds where the IRS has denied or ignored such requests;
- resolving unpaid taxes through collection alternatives, including offers in compromise;
- representing clients in litigation involving Section 831(b) captive insurance; Section 280E cannabis issues; complex corporate, partnership, collection, and estate and gift tax matters; employment tax; property tax; international tax matters, including FBAR penalties; abusive transactions; fraud; and worker classification;
- defending clients in IRS and Department of Labor audits involving ESOPs and allegations of prohibited transactions under the Tax Code and ERISA;
- addressing offshore assets and foreign reporting requirements, including the IRS’s voluntary disclosure programs; and
- representing clients under criminal investigation, including allegations of tax evasion, failure to disclose foreign assets, and failure to pay employment and income taxes.
Practice Areas
Administrative Law
Certification
Certified Tax Law Specialist, Arizona Board of Legal Specialization
Professional Licenses
Certified Public Accountant, State of Arizona
Government Service
Senior Attorney, IRS Office of Chief Counsel, U.S. Department of the Treasury, 2011-2017
Brandon's approach to tax cases
A Certified Tax Law Specialist, Best Lawyers ® honoree, CPA, and senior partner in the firm, Brandon Keim combines litigation experience and a strong understanding of accounting and business concepts in tax matters to represent clients in defense of taxing authorities and provide strategic tax advice before a dispute arises. Brandon joined Frazer Ryan after serving as a senior trial attorney with…
The kind of cases Brandon takes
Brandon reviews new inquiries case-by-case for tax and tax litigation matters in Phoenix and the surrounding Arizona area.
Credentials
Brandon Keim's legal education and bar admissions
Georgetown University
LL.M. · 2018
Arizona State University
J.D. · 2011
Boise State University
B.B.A · 2006
Jurisdictions
Brandon's state bar admissions
Arizona, State Bar o
2011 · ACTIVE
Brandon studied at LL.M. in Georgetown University, J.D. in Arizona State University, and B.B.A in Boise State University.
Law school and academic background
Brandon completed LL.M. in Georgetown University, J.D. in Arizona State University, and B.B.A in Boise State University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Brandon runs in Arizona is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of Brandon Keim
Brandon has received 10 formal recognitions from bar associations, industry bodies, and peer-review services.
Best Lawyers in America — Litigation and Controversy - Tax
2026
Best Lawyers in America — Tax Law
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — Administrative / Regulatory Law
2026
Best Lawyers in America — Awards:
2026
Best Lawyers in America — Internal Revenue Service Chief Counsel National Award for Superior Achievement in Outstanding Litigation
2026
Best Lawyers in America — Az Business Leaders 2023
2026
Best Lawyers in America — (Tax Law), AZ Big Media
2026
Best Lawyers in America — “Top 100 Lawyers in Arizona for 2023” (Tax Law),
2026
Best Lawyers in America — AZ Business magazine
2026
Legal awards and honors
Best Lawyers in America — Litigation and Controversy - Tax (2026). Best Lawyers in America — Tax Law (2026). Best Lawyers in America — Additional Areas of Practice: (2026). Best Lawyers in America — Administrative / Regulatory Law (2026). Best Lawyers in America — Awards: (2026). Best Lawyers in America — Internal Revenue Service Chief Counsel National Award for Superior Achievement in Outstanding Litigation (2026).
Locations
Brandon Keim's office in Phoenix
Brandon's primary office is at 1850 N. Central Avenue, Suite 1800, Phoenix, Arizona, 85004. In-person meetings are by appointment; a phone intake usually comes first.
Frazer Ryan Goldberg & Arnold LLP
1850 N. Central Avenue, Suite 1800
Phoenix, Arizona 85004
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Client reviews of Brandon Keim
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Schedule your consultationHiring guide
How to hire Brandon Keim — what to expect in your first consultation
Working with a new tax attorney should feel structured. Here's how the first two conversations with Brandon usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Brandon charges for the initial consult. That fee is credited toward representation if you retain Brandon's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Brandon will tell you what matters and what doesn't.
Questions to ask a tax attorney in Phoenix, Arizona
A short list to run through before you commit: How many tax matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Brandon
Brandon discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in tax practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every tax matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Brandon confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Brandon's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many tax practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Brandon Keim
How much does it cost to hire Brandon for a tax case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Brandon walks through the likely range during the consult so there are no surprises.
Does Brandon offer a free consultation?
Brandon charges for the initial consult; that fee is credited toward representation if you retain Brandon's office. Some tax attorneys offer free consults — check Brandon's current terms during booking.
How long do tax cases in Arizona typically take?
Simple tax matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Brandon gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Brandon take my case if I'm outside Phoenix?
Brandon is licensed in Arizona. Matters governed by Arizona law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Brandon will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Brandon?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Brandon will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Brandon accepting new tax clients right now?
Brandon's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Tax attorneys serving Phoenix, Tucson and Scottsdale in Arizona
Brandon handles tax matters throughout Arizona. Each city below is a direct link into the search page for verified tax attorneys in that community.
More counsel
Other top-rated tax attorneys in Arizona
If Brandon's intake is full or the fit isn't right, these tax attorneys in Phoenix handle similar matters. Every profile below is verified and open to consultations.





