Tax Preparation Experts

About The Team

The team at GST offers customized tax preparation services to individual and business clients in a variety of industries.  We pride ourselves on being thorough and accurate understanding that errors and omissions on tax forms can be costly.  In addition to handling your federal and state tax filings, we offer consulting, bookkeeping and year-end tax planning services.  

John Barbarotta

President, GST

Management Services, Inc.

about john barbarotta gst

Phone: 310-448-2050

Email: John@gstservicesinc.com

John Barbarotta is an experienced tax professional who has been working in the accounting and finance industry since 1998. He has an impressive and extensive employment history as a registered tax professional and has worked for large companies such as Playboy Enterprises and Black & Decker. For the past ten years he has been the President of GST Management Services, Inc., a tax preparation company, where he and his team have helped thousands of clients become filing compliant while minimizing exposure to tax liability.

Hayden Brodsky

As a dedicated and detail-oriented professional, Hayden has been meeting the accounting needs of corporations and individuals for more than ten years. He has experience in individual, corporate, and estate tax returns, bookkeeping, payroll, and tax planning. Some of his areas of expertise include, entertainment, firefighters, police officers, and real estate. He works with clients in many different industries and does not use a cookie cutter approach to accounting. He makes sure to understand each clients’ specific needs and create and individualized tax plan for them. Hayden got his start in the accounting industry, when he was a freshman in college at Cal State Channel Islands, working for a small accounting firm. He has worked for many accounting firms since and, now with GST, understands the importance of the personal relationships with each client.