Zaher Fallahi

Zaher Fallahi

5.0
Rating: 10.0

Licensed for 15 years

Tax Lawyer at Costa Mesa, CA
Practice Areas: Tax, Federal Regulation

South Coast Plaza, 650 Town Center Drive, Suite 510, Costa Mesa, CA

About Zaher

Biography

Practice Areas

2

Practice Areas

Tax 70%

IRS representation since 1992, crypto tax since 2013, tax returns preparation since 1979 for individuals, corporations, LLCs, estates, foreign gifts.

34 years | 1,200 cases

70%
Federal Regulation 30%

OFAC License, US Laws of Sanctions

15 years | 850 cases

30%

Fees and Rates

Cost

Pro bono

5 %


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in District of Columbia for 7 years

State: District of Columbia

Acquired: 2018

Good Standing

No misconduct found

Licensed in California for 15 years

State: California

Acquired: 2010

Active

No misconduct found

Location

Zaher Fallahi, Attorney At Law, CPA

South Coast Plaza, 650 Town Center Drive, Suite 510, Costa Mesa, CA, 92626

Zaher Fallahi, Attorney At Law, CPA

The US Bank Tower-Downtown LA, 633 West 5th Street, 26th Floor, Los Angeles, CA, 90071

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Zaher Fallahi's Reviews

Avvo Review Score

5.0 /5.0

119 Client Reviews

5 star (118)
4 star (0)
3 star (0)
2 star (0)
1 star (1)

Posted by Sina | November 19, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Excellent Tax Attorney – Highly Recommended

I worked with Mr. Zaher Fallahi, Attorney at Law, and his firm on a tax matter, and they did an outstanding job. They were highly professional, responsive, and extremely patient in answering all my questions. It was very easy to communicate with them and explain the details of my case, and they guide...d me clearly through every step. Their team is knowledgeable, trustworthy, and committed to providing excellent service. I highly recommend Mr. Zaher Fallahi and his firm.

Zaher Fallahi

Replied last November 19, 2025

Dear Sina, Thank you sincerely for your thoughtful and generous review. We are honored that you entrusted our firm with your tax matter, and I am pleased to know that our guidance and communication were helpful to you throughout the process. We take pride in providing diligent, responsive, and professional representation to every client, whether from our Los Angeles (U.S. Bank Tower) or Orange County (South Coast Plaza Center Tower) offices. Although we cannot discuss any details of your case for confidentiality reasons, please know that it was a pleasure assisting you, and your appreciation means a great deal to our entire team. Should you ever need further assistance with tax, legal, or compliance matters, we would be happy to help. Respectfully, Zaher Fallahi, Attorney at Law, CPA and Team Los Angeles & Orange County Offices

Posted by Mina | October 9, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Outstanding Legal Support with Honesty and Care

I have used Dr. Fallahi’s law office services several times, and I could not ask for a more professional and supportive lawyer. He truly listens and takes the time to understand your needs. His knowledge is extensive, so you never have to worry about missing important details—he will always point out... what requires your attention. Most importantly, he is honest, transparent, and never overcharges. I fully trust and highly recommend him.

Zaher Fallahi

Replied last October 11, 2025

Dear Dr. Karami, Thank you sincerely for your kind and thoughtful words. Coming from a professional of your caliber, your endorsement means a great deal to me and my team. It has always been a pleasure assisting you in your legal and tax matters. We take pride in providing the same level of care and diligence you described—ensuring that every client receives transparent, knowledgeable, and supportive service. I deeply appreciate your continued trust and confidence. Warm regards, Zaher Fallahi, Attorney at Law, CPA

Posted by Harry | June 29, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Iranian real estate affidavit service

Mr. Fallahi, assisted my family with an urgent real estate matter in Iran. His attention to the concerns of my elderly in-laws (the owners) was very noted. He showed patience and respect and handled the matter quickly and professionally. I would recommend him to other with similar circumstances.

Zaher Fallahi

Replied last July 3, 2025

Dear Harry and the family, Thank you very much for your thoughtful feedback. It was truly a pleasure assisting your family with this important real estate matter. I understand how sensitive these situations can be, especially when they involve our elderly loved ones, and I’m glad I could help bring clarity and resolution. Your valuable cooperation is also appreciated. Please do not hesitate to reach out if I can be of assistance in the future, and I greatly appreciate your recommendation to others. Wishing you and your family all the best. Kind regards, Zaher Fallahi, Esq., CPA

Posted by BABAK | June 11, 2025 | Consulted Attorney

This review is from a potential client who consulted with this attorney.

Zaher Fallahi, CPA & Tax Attorney

Zahaer Fallahi is a very knowledgeable and honest tax lawyer. I have sat in numerical presentations on various aspects of tax laws. Also, on few occasions, Zaher provided me with legal counsel. Typically, tax lawyers will end their recommendations with: Check with your CPA. The good thing about Zaher... is both a layer and CPA. So, you will get complete advice.

Zaher Fallahi

Replied last June 11, 2025

Dear Babak: Thank you so much for your kind words and thoughtful review! I'm truly grateful for the opportunity to assist you with your tax and legal matters. It's always my goal to provide clear, comprehensive guidance, and I'm glad to hear that you found the dual perspective as both a lawyer and CPA helpful. Your trust means a lot, and I look forward to continuing to support you whenever you need. Warm regards, Zaher Fallahi, Attorney At Law, CPA and Team

Posted by MHD HUSSAM EDDIN | May 24, 2025 | Consulted Attorney

This review is from a potential client who consulted with this attorney.

Great Experience

I had an excellent experience working with Zaher. From the beginning, he was professional, responsive, and extremely knowledgeable. He took the time to explain every step of the process clearly and made sure I felt informed and supported throughout. Thank you!

See All Client Reviews

Zaher Fallahi's Lawyer Endorsements

Endorse Zaher
Cyrus S. Tabibnia headshot
Cyrus Tabibnia

Tax lawyer | Nov 15

Relationship: Fellow lawyer in community

"I have had the pleasure of knowing attorney Zaher Fallahi for a number of years, in a professional capacity. Zaher is knowledgeable, hardworking, competent and a conscientious attorney. Zaher has a strong reputation in the field of international tax and undisclosed foreign bank accounts. He's also a caring individual. I highly recommend him for your legal needs."

Michael Charles Doland headshot
Michael Doland

Tax lawyer | May 19

Relationship: Fellow lawyer in community

"The answers of Mr. Fallahi are consistently accurate, analytic, and customized to the needs of the Avvo askers. He also displays exceptional professional courtesy which certainly achieves the best results for clients. These are all qualities that every client should look for when hiring an attorney."

Aaron P. Richter headshot
Aaron Richter

Tax lawyer | Feb 23

Relationship: Fellow lawyer in community

"I endorse this lawyer. Mr. Fallahi provides excellent answers on Avvo and other forums where we are both members. I would highly recommend him."

John Michael Phillips headshot
John Phillips

Unknown lawyer | Nov 29

Relationship: Fellow lawyer in community

"Lawyers who spend time giving back in pro bono forums like this are special and should be commended and endorsed. Kudos."

Ziad Elrawashdeh headshot
Ziad Elrawashdeh

Business lawyer | Nov 11

Relationship: Worked together on matter

"I know Mr. Fallahi almost 20 years. We are both in the fields of accounting (CPA) and law. I found Mr. Fallahi in both fields is a person of integrity, highly ethical, knowledgable, and very professional. I highly recommend him to anyone."

Roy Lee Comer headshot
Roy Comer

Tax lawyer | Sep 18

Relationship: Fellow lawyer in community

"I have known of Zaher Fallahi for several years. He is a an excellent and knowledgeable tax attorney and CPA who is well respected by his peers. He has spoken to the OCBA Solo Section and has demonstrated his knowledge and integrity. He is committed to achieving the best result for his clients. You will be in excellent hands if Zaher is your attorney. I wholeheartedly endorse him."

Joseph Anthony Broyles headshot
Joseph Broyles

Tax lawyer | Mar 30

Relationship: Fellow lawyer in community

"I have known Zaher as a fellow tax attorney and CPA for many years. He is extremely competent and professional in every respect. I strongly endorse and recommend Zaher to handle any business or individual client's tax, accounting and business matters."

Mona Amini headshot
Mona Amini

Tax lawyer | Dec 07

Relationship: Fellow lawyer in community

"Mr. Fallahi is a knowledgeable attorney and tax professional. I endorse this lawyer and recommend for anyone needing assistance in the area of tax law."

Daniel Wilbur Layton headshot
Daniel Layton

Tax lawyer | Sep 10

Relationship: Fellow lawyer in community

"I met Zaher spoke at a Tax Section meeting on ethics. Zaher is articulate, smart, and knowledgeable, and a great asset to Southern California's tax community."

Arash Hashemi headshot
Arash Hashemi

Tax lawyer | Mar 18

Relationship: Fellow lawyer in community

"I was introduced to Mr. Fallahi at a local bar association meeting. I soon learned that he is both professional and very knowledgable when it comes to the law. I highly endorse his work and am happy to have him as a colleague."

Afshin Mozaffari headshot
Afshin Mozaffari

Tax lawyer | Jan 27

Relationship: Fellow lawyer in community

"I endorse this lawyer. Mr. Fallahi is diligent, professional and thoughtful, and his background and experience as a CPA is a tremendous resource to his practice as a tax attorney."

Nikki Mehrpoo Jacobson headshot
Nikki Jacobson

Tax lawyer | Jan 18

Relationship: Worked together on matter

"Zaher is the best when it come to any tax issue. I refer all of may cases to him and appreciate his professionalism. THANKS!!!"

Johnathan Michel Razbannia headshot
Johnathan Razbannia

Tax lawyer | Jan 02

Relationship: Fellow lawyer in community

"I endorse this lawyer. Mr. Fallahi is an excellent and knowledgeable Attorney in tax law. I would highly recommend him as an advocate for your legal matters."

Anahita Hasheminejad headshot
Anahita Hasheminejad

Tax lawyer | Dec 02

Relationship: Worked together on matter

"I have known Zaher Fallahi for a couple of years now and have referred clients to him in the past. He has also been of assistance to me in my current litigation matters in consulting on tax liabilities related to a settlement agreement for clients. I find his knowledge and experience valuable and would gladly refer clients to him in the future."

David V Jafari headshot
David Jafari

Tax lawyer | Nov 05

Relationship: Fellow lawyer in community

"I endorse this lawyer. I have had the pleasure of knowing Mr. Falahi for about 5 years. He was refered to me by another attorney when I was searching for an expert witness to testify in an accounting malpractice case. Although that case settled before we engaged Zaher, he was a true professional and I appreciated his knowledge and expertise in tax matters. More recently, I have listened to him during his regular program on the KIRN AM 670 Professional Hour where he has explained the complex rules and regulations related to the Office of Foreign Asset Control (OFAC) and how it impacts Iranian nationals living abroad. On a more personal note, Zaher is a delightful individual with a great desire to help solve problems for his clients. I would recommend him wholeheartedly."

Mahyar Ghassemian headshot
Mahyar Ghassemian

Tax lawyer | Oct 21

Relationship: Fellow lawyer in community

"I have referred a few matters to Zaher Fallahi and have found him to be knowledgeable, professional and a trusted colleague. I will not hesitate in referring any of my clients to him."

Atoosa Vakili headshot
Atoosa Vakili

Tax lawyer | Oct 06

Relationship: Fellow lawyer in community

"I have known Zaher Fallahi for over twenty years as a reputable and knowledgeable tax professional in the community. Mr. Fallahi is of utmost integrity and has the best interest of his clients as his highest priority. I fully endorse Mr. Fallahi."

Rafik Ayvazi headshot
Rafik Ayvazi

Tax lawyer | Oct 06

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Nina Kani headshot
Nina Kani

Tax lawyer | Oct 03

Relationship: Fellow lawyer in community

"Zaher is a well respected attorney and a go to person for taxation and estate planning. He is also active in his community and is responsive and thoughtful with his clients. I endorse Zaher wholeheartedly."

Erich Ferrari headshot
Erich Ferrari

Tax lawyer | Oct 02

Relationship: Worked together on matter

"Zaher is my top choice when a client needs a tax issue handled. It is also very helpful that he has a good understanding of OFAC administered regulations targeting Iran and understands the interplay between the two. He has always been extremely professional, knowledgeable, and responsive in my dealings with him. I would highly recommend him to anyone needing a good tax lawyer, or someone skilled in representing individuals divesting from Iran who may have both OFAC and Tax needs."

View All Endorsements
Bruce Givner headshot
Bruce Givner

Tax lawyer

Ziad Elrawashdeh headshot
Ziad Elrawashdeh

Workers compensation lawyer

Roy Lee Comer headshot
Roy Comer

Litigation lawyer

Nilufar Alemozaffar headshot
Nilufar Alemozaffar

Landlord or tenant lawyer

Arash Hashemi headshot
Arash Hashemi

Criminal defense lawyer

Afshin Mozaffari headshot
Afshin Mozaffari

Employment and labor lawyer

Johnathan Michel Razbannia headshot
Johnathan Razbannia

Real estate lawyer

Anahita Hasheminejad headshot
Anahita Hasheminejad

Litigation lawyer

Abbas Hadjian headshot
Abbas Hadjian

Family lawyer

Nikki Mehrpoo Jacobson headshot
Nikki Jacobson

Immigration lawyer

Pardis Patrick Ashouri headshot
Pardis Ashouri

Litigation lawyer

Mahyar Ghassemian headshot
Mahyar Ghassemian

Litigation lawyer

Richard Gordon Stack headshot
Richard Stack

Tax fraud and tax evasion lawyer

Haleh Zarkesh headshot
Haleh Zarkesh

Immigration lawyer

Atoosa Vakili headshot
Atoosa Vakili

Immigration lawyer

David V Jafari headshot
David Jafari

Patent infringement lawyer

Experience

Rating:  10.0 (Superb)

Honors

2015

Coast Magazine, Top Orange County Attorney

2012

Iranian American Bar Association, Lawyer of the Month

Work Experience

2010 - Present

Principal, Zaher Fallahi, Attorney At law, CPA

1992 - Present

Principal/Owner, Zaher Fallahi, CPA, Attorney At Law

1989 - 1991

Senior Manager/CPA, Major CPA Firm

1981 - 1984

CPA/Senior Auditor, Major Government Agency

Associations

2022 - Present

Association of European Attorneys

Member

2018 - Present

District of Columbia Bar

Member

2014 - Present

State Bar of California

Tax Procedure & Litigation Committee

2014 - Present

Iranian American Lawyers Association

Board Member

2010 - Present

Federal District Court (Central District California)

Admitted to Practice

2010 - Present

Iranian American Bar Association

Attorney Member

2010 - Present

Supreme Court of California

Admitted to Practice

2010 - Present

United States Tax Court

Admitted to Practice

2010 - Present

California Bar Association

Attorney Member

2010 - Present

United States Court of Appeals For the Ninth Circuit

Admitted to Practice

2010 - Present

Los Angeles County Bar Association

Attorney Member

2010 - Present

Orange County Bar Association

Attorney Member

2010 - Present

American Academ of Attorney-Certified Public Accountants

Attorney Member

2010 - Present

American Bar Association

Attorney Member

1990 - Present

California Society of CPAs

Member

1984 - Present

American Institute of Certified Public Accountants (AICPA)

Member

1983 - Present

Florida Board of Accountancy

In-Active Member

Education

2022

Massachusetts Institute of Technology (MIT)

“Blockchain Technolgies” Certificate Program

2018

Harvard University Law School

Negotiation and Leadership

2018

Harvard University Law School

Emotions in Negotiations

2004

Pacific Coast University School of Law

JD - Juris Doctor

1981

Oklahoma City University

Master of Business Administration ( MBA)

1979

Oklahoma City University

Master of Science

1977

Petroleum University of Technology, National Iranian Oil Company

Bachelor of Science

N/A

University of California - Berkeley, Extension

Economics Courses 1987-1989

Speaking Engagements

2018

Pars Equality Center Sherman Oaks, California

Highlights of the 2017 New Tax Law

2018

Iranian Oil Orgzanization, Encino, California

Highlights of the 2017 New Tax Law

2018

Iranian American Bar Association (Orange County Chapter)

Lgel and Tax Implication of Transferring Money from Iran

2017

UCLA School of Law

Effective cooperation between CPAs and lawyers and extension of Attorney-Client Privilege to CPAs, in the process of the IRS Offshore Voluntary Disclosure Program (OVDP)

2017

Startups, Pars Equality Center-Irvine, California

Legal and tax implication of startups

2017

Iranian American Bar Association (San Diego Chapter)

Legal and Tax Implication of the Iranian Transactions and Sanctions Regulations

2017

AAA-CPA MCLE Event Palm Springs

What privilege applies when an attorney prepares a tax return?

2017

2017 MCLE National Conference

What privilege applies when an attorney prepares tax returns ?

2015

Tax and legal implication of the US Treasury Office of Foreign Assets Control (OFAC) Regulation against Iran

Office of Foreign Assets Control (OFAC)

2015

Orange County Bar Association, Legal Aid Society

Business Entity Selection

2015

Lecture in Farsi language for non-heritage (Non-Farsi speaking) students at the UCLA Extension

Legal and Tax Implication (FBAR, FATCA, OVDP) of the Iranian Transactions and Sanctions Regulations (ITSR), the US Treasury Office of Foreign Assets Control (OFAC) regarding Iran

2015

Lecture in Farsi language for non-heritage (Non-Farsi speaking) graduate students

Legal and Tax Implication (FBAR, FATCA, OVDP) of the Iranian Transactions and Sanctions Regulations (ITSR), the US Treasury Office of Foreign Assets Control (OFAC) regarding Iran

2015

2015 Tax Law Updates 2015 Tax Law and Tax Planning

2014

Kanoon Sokhan, Los Angeles

FBAR & FATCA and Sanctions Laws Updates

2014

Iranian Oil Organization

Tax and Sanctions laws updates

2014

Iranian International lawyers’ Association

FBAR, FATCA and Sanctions Laws Updates

2014

FBAR and FATCA

FBAR Update

2014

California Bar Association Tax Procedures and Litigation Committee

Circular 230 Updates

2013

Orange County

Estate Planning Under 2013 Laws

2013

National Iranian Oil Company Executive

2013 Tax Law Updates

2013

Los Angeles

Estate Planning Under 2013 Laws

2013

Iranian American International Lawyers Association

FBAR & FATCA

2013

670 AM Radio Station

Various Legal & Tax Matters

2012

Kanoon Sokhan

Legal & Tax Implication of the US Sanctions Against Iran

2012

Iranian Professionals of San Diego

Legal & Tax Implication of the US Sanctions Against Iran

2012

Iranian International Lawyers ' Association

Federal Tax Updates

2012

Iranian American Bar Association (Orange County Chapter)

Legal & Tax Implication of the US Sanctions Against Iran

2012

670 AM

Various Legal & Tax Matters

2011

OFAC

Legal & Tax Implication of the US Sanctions Against Iran

2011

National Iranian Oil Company Executive

Legal & Tax Implication of the US Sanctions Against Iran

2011

Legal & Tax Implication of the US Sanctions Against Iran

Legal & Tax Implication of the US Sanctions Against Iran

2011

Kanoon Sokahn

Federal Tax Updates

2011

Iranian International Lawyers ' Association

Legal & Tax Implication of the US Sanctions Against Iran

2011

670 AM

Various Legal & Tax Matters

1992

Kanoon Sokhan

Federa Tax Updates

Publications

2018

Orange County Lawyer Magazine Legal and Tax Ramification of Business Entities

2014

California Journal of Tax Litigation Revision to Circular 230

1993

Irvine Chamber of Commerce News Letter How to avoid being audited

Languages

Farsi

Turkish

English

Activity

Avvo Rating

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