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Insight. Integration. Innovation.
Allen Barron, Inc. and Janathan L. Allen, APC, offer integrated tax, legal, accounting and business advisory services to a diverse blend of domestic and international clientele.
Tax Solutions
We provide comprehensive domestic and international tax planning, as well as strong representation in problematic tax matters.
Legal Services
Janathan L. Allen, APC, provides integrated legal services which help companies, families and individuals to resolve challenges and accomplish their goals while protecting their interests.
Estate Planning
A properly executed estate plan allows you to control your assets today, clearly outlines your wishes in an unfortunate event and protects your loved ones tomorrow.
We help clients understand and meet vital accounting needs, including internal audit, forensic accounting and tax compliance.
Business Advisory Services
We provide holistic guidance to U.S. and international businesses, helping our clients seize opportunities and avoid trouble.



Allen Barron’s domestic and international tax attorneys provide sound counsel on local, state, federal and international tax strategies, representing clients before…



Janathan L. Allen, APC and attorneys on staff have extensive business and corporate law expertise and provide full-service legal representation as well as comprehensive estate planning



Comprehensive accounting, forensic accounting and tax preparation services provide valuable support and insight to businesses and individual clients…

Business Consulting

& Planning

Because a multitude of risk factors and an array of competitive forces must be considered in the formation and growth of any significant business, going it alone is simply not an option.…

JD Supra Readers Choice Top Firm 2024

Janathan L. Allen and Allen Barron Inc. Named:

"Readers Choice: Top Firm; Top Author 2024"

“…consistent visibility, engagement and thought leadership.”

Resolve Your Legal Tax & Accounting Challenges

The value of an integrated service provider is the quality of advice you receive and the ability to apply that comprehensive and accurate insight to your complex personal and business problems, challenges and opportunities.

It takes many entrepreneurs years to understand the inherent symbiotic relationship between tax, legal, accounting, production and employee management within any successful company or corporation.

Today’s business questions and problems are much more complex than even five years ago.

Business decisions must be made within a shorter window of opportunity when change is happening at an increasingly rapid pace.

The complications of cross-border, interstate and international business and competition has sharpened the need for accurate business insight and decision making and increased the value of an integrated business service partner who can help you through any potential opportunity or challenge.


Founder, Allen Barron, Inc.

Janathan Allen is an experienced tax attorney and business lawyer who integrates business, legal, tax and accounting strategies to provide her clients with better answers to their questions and more informed strategies to leverage their opportunities.

Most businesses have separate tax attorneys, business attorneys, CPAs and accountants, tax preparers and financial advisors. If you take the same problem to each professional, they will provide what they genuinely believe is the right and best answer. However, it will only be based upon their unique (and somewhat limited) perspective.

The business attorney will have no idea how the solution they are recommending impacts business operations or your accounting systems. The financial planner has no idea how their recommendation may be impacted by interstate or international tax implications.

This is the genuine value of the integrated approach Janathan Allen and Allen Barron take when they work with you as a client on any challenge or opportunity.

Allen Barron’s legal services are provided by Janathan L. Allen, APC. 


Allen Barron, Inc. is proud to be a member of IR Global, a multi-disciplinary professional services network whose membership consists of the highest quality boutique and mid-sized firms which are focused on partner-led, personal service and have extensive cross border experience.

Represented in 155+ jurisdictions, covering over 70 unique practice areas, we are perfectly placed to offer the highest quality bespoke advice that meets the needs of the most complex client requirements.

Allen Barron was proud to sponsor IR Global’s International Conference here in San Diego in June, 2023.

Latest Blog Posts

This Month's PodCast

In the news

American - The Advantage of Transactional Planning and International Tax
Janathan Allen published in "The American" May/June 2023 Issue. Learn more about her most recently published article:
Monday, May 1, 2023
Reader Best of 2023 with Border
Vote for Janathan Allen and Allen Barron in the San Diego Reader BEST of 2023. Janathan Allen and Allen Barron have been nominated as a finalist in the 2023 "Reader's Best of Law Firm/Attorney in the Business/Estate Planning Category." Voting is open through early September.
Monday, August 7, 2023
Have you found our new Podcast "ABCast"? Listen to an ABCast podcast and learn more about topics of interest related to taxes, our legal services including estate planning as well as accounting and business advice. ABCast is available on all of your favorite podcast sources. We invite you to join the conversation, and hope you enjoy our new podcast.
1a American Cover Sep Oct 2023 Cropped
Check out Janathan Allen's recently published article in "the American," a UK based magazine for US expats. The article is entitled "Forewarned is Forearmed" - The IRS is targeting affluent Americans, wherever they live or invest.
Monday, January 2, 2023

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Dealing with our firm’s taxes always seemed a stressful and cumbersome task. With Allen Barron preparing our tax returns, we have peace of mind knowing that Jan and her team are thorough, precise and competent, that our data is handled securely, and that her firm is constantly vigilant of ever changing tax laws that impact tax liabilities – both for our partners and our firm - so we can focus on what really matters to us – our company and our clients.
I was referred to Janathan Allen by a fellow friend and colleague. I was unsure how a transactional plan or a corporate election for my new business venture could make a difference. I had questions, lots of them…and Jan had answers. But the one we all ask ourselves is, would her firm be worth the money? Today, I can confirm that it was. That transactional plan led to entity creation and corporate governance, estate planning, and a trusted adviser. Money well spent, and as Jan so aptly states, “an integrated single source of guidance.” All under one roof.
When an employment opportunity in an engineering firm opened up for me in the United States, I took it and never looked back. Leaving my foreign bank investments intact in my native country, I collected foreign earnings for a few years. Then I learned that I should have been filing voluntary disclosures of foreign accounts – or “FBAR’s” – when I immigrated to the USA. Janathan L. Allen, APC helped me to fulfill the disclosure requirements, provided me with options, and outlined a course of action for yearly filing that has kept me in compliance with the US Dept of Treasury and provided a solution before it became a problem.
COVID-19 hit my business hard. It all happened so fast. One minute my business was open, the next day it wasn’t. But life keeps moving, and so did I. I reached out to Allen Barron, Inc., who’d been doing my taxes for years. What next? Jan provided me with some business advice to help me navigate through these unprecedented times, and has been a steadfast advisor, working with me to dissolve the company, file final tax returns, and keeping me in compliance with tax authorities. It’s been a rough ride and tough year, but with Allen Barron by my side, I know that when I start my new business venture, I’ll get great advice and exciting results!
I have been working with Allen Barron for over 16 years. Janathan is one of the most knowledgeable and practical Attorneys I have worked with. Her commonsense approach to my companies’ tax and legal matters is only eclipsed by her experience dealing with real world situations. Ms. Allen is thorough, reliable and a pleasure to work with.

Badge of Honor

Member Investor In Good Standing 2014-2020
North San Diego Business Chamber
Janathan Allen 2020 - Recognition of Dedication
County of San Diego Third District
Allen Barron Inc. - 2019
San Diego Union Tribune
Richard Barron, Janathan Allen - 2017, 2019 Top 3 Accounting and Tax Preparation Services, San Diego North County
Assembly California Legislature
Janathan Allen, 2017 - Women of Influence Award Nominee
State of California Senate
Janathan Allen, 2020 - Outstanding Community Service
State of California Senate
Janathan Allen 2020 - Recognition of Time and Dedication to the San Diego Business Chamber
Assembly California Legislature

Offices of Allen Barron, Inc.

Main Office

16745 West Bernardo Drive, Suite 260
San Diego, CA 92127
Phone: 858-304-0947
Phone: 866-631-3470
Fax: 858-376-1410

San Diego Office

5720 Oberlin Drive
San Diego, CA 92121
Phone: 866-631-3470
Fax: 760-741-1410

Las Vegas Office

333 South Sixth Street, Suite 230
Las Vegas, NV 89101
Phone: 702-749-4430
Fax: 702-933-1748

San Diego Office

750 B Street, Suite 2610
San Diego, CA 92101
Phone: 619-702-8356
Fax: 619-923-8356

San Francisco Office

300 Montgomery Street, Suite 410
San Francisco, CA 94101
Phone: 415-481-0475
Fax: 415-762-1539

Phoenix Office

40 North Central Avenue
Phoenix, AZ 85004
Phone: 602-903-7018
Fax: 602-357-1655