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Byung Chan Ahn, CPA


3435 Wilshire Blvd #600
Los Angeles, CA 90010

Tel : 213 738 6000
Fax : 213 738 6062
Email : 

ABC CPAs is a professional CPA firm, recognized for its commitment to integrity and dedication to offering accurate service.

ABC CPAs is committed to offering its clients the best possible service. With a reputable history in serving clients from a wide spectrum of fields, ABC CPAs takes a comprehensive approach to each individual file with experience, effective strategies, and systematic procedures to ensure the highest level of accuracy and service.

ABC CPAs is a professional team comprised of highly trained, educated, and qualified associates who are comfortable working in a demanding and fast-paced environment.

Established in 1993 by Byung Chan Ahn, CPA, ABC CPAs has become a leading Professional Company of Certified Public Accountants within the Korean-American Community. ABC CPAs is continues to adopt new practices and technologies to better serve clients and the community without compromising the high quality of service that clients expect. Because ABC CPAs is committed to recognizing individual needs of clients from diverse backgrounds, the morals and ethics behind this firm have allowed for the company’s continued success.

ABC CPAs is dedicated to offering excellence and expertise for all accounting and taxation needs.

Since its establishment in 1993, ABC CPAs has been offering a variety of tax and audit related services to the general public including, advising on mergers and acquisitions, assisting growing entities with the intent to establish a public status, as well as providing in-depth professional consulting services for a variety of industrial and corporate entities. In recent years, ABC CPAs has instituted a series of changes that have resulted in solid growth, overcoming the obstacles associated with the increasing changes in the business climate.

ABC CPAs is recognized as a team of experienced and qualified individuals who represent clients ranging from small personal accounts to major corporate entities.

Having a strong grasp on auditing procedures and the practices of the Internal Revenue Service and other Tax authorities, ABC CPAs exists to safeguard clients from Government agencies.

As audits become increasingly complex and as the environment surrounding audits becomes more regulatory, audits have become costlier. However, ABC CPAs has always been mindful of maintaining an effective process while keeping a cost-effective approach.

ABC CPAs has tremendous experience with audits involving federal agencies (Internal Revenue Service), as well as state agencies (Franchise Tax Board, State Board of Equalization, Employment Development Department, and Labor Commission). As a result, ABC CPAs is able to provide optimized and quality audits to ensure accuracy, avoiding possible problems that may occur to the taxpayer, all while offering remarkable results and quality representation.

ABC CPAs is experienced and aware of the need to provide International Business Tax consultations to branches of business that may be based overseas and vice-versa.

ABC CPAs offers a wide body of knowledge and expert retention services pertaining to assets, accounting, and taxation. ABC CPAs often works with those businesses based in foreign countries with branches in the United States and vice versa. As such, ABC CPAs is well-versed in matters of international business taxation. ABC CPAs’ services include assisting with the E-2 Visa, investment immigration, as well as keeping clients informed of international guidelines from around the world.

ABC CPAs is recognized as a leader in the field of accountancy, offering a variety of services to current and prospective clients as well as the community.

Through media, such as column printings in the Korea Times, and broadcasting radio columns on Radio Korea (AM 1540 khz), Byung Chan Ahn, CPA, supported by ABC CPAs, continues to provide expert information to the Korean American Community from years of first-hand experience in this field. Additionally, since 1997, ABC CPAs has invited guests from Federal, State, and local government agencies to answer frequently asked questions and give explanations of updated tax related news offered by means of live public radio broadcasts. To continue meeting the needs and demands of the growing Korean-American population, Byung Chan Ahn, CPA also opens seminars throughout the year on various topics, that are open to the public.

ABC CPAs powers an online website that is dedicated to providing clients and the wider community with invaluable resources and tax information.

Launched in the year 2000, is currently one of the most frequented accounting websites amongst the Korean-American population. Through this website, users can obtain vital information relating to personal taxes, business and corporate entities, as well as gain information for various employment, networking, and educational opportunities. ABC CPAs recognizes the need for an effective site that will cater to current and future generations and is proud to offer online services through

ABC CPAs is able to accommodates services for clientele all throughout the United States of America.

Currently, ABC CPAs works with numerous clients ranging from large corporate entities to individual clients across North America including: Alabama, California, Colorado, Georgia, Hawaii, Illinois, Nevada, New Jersey, New Mexico, Ohio, Oregon, Philadelphia, Texas, Utah, as well as parts of Canada.

ABC CPAs is one of the industry leaders in accountancy and taxation publications and periodicals, offering a series of valuable resources to the public.

  • Have A Confidence In Tax Audit – 2013
  • The Tax Saving Secrets of the Rich – 2006 Best Seller List
  • QuickBooks Pro – Lecture Video Production (VHS)
  • QuickBooks Pro – Lecture DVD Production (DVD)
  • QuickBooks Pro – Special Edition Guide (Korean, Print).

ABC CPAs is up to date with the current times and new policies that continue to surface.

ABC CPAs makes every effort to keep current and prospective clients, along with the community, informed by communicating important issues and upcoming events that may apply to readers.

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