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Greenberg Traurig, LLPShare Holder
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Ruben Sislyan

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1840 Century Park East, Suite 1900, Los Angeles, CA 90067-2121

Tax and State & Local Tax (SALT)

About Ruben Sislyan

Ruben Sislyan focuses his practice on California state and local tax controversies at the audit, administrative, and judicial levels. He has broad experience representing Fortune 500 and middle-market companies, closely held businesses, start-ups, families, and individuals in a wide range of state and local taxes, including corporate franchise/income, personal income, sales and use, property, tobacco, and gross receipts and other local taxes.

Ruben helps clients navigate through all stages of California’ s complex administrative tax controversy process. He regularly practices before California’ s state and local tax agencies and tribunals, including the Franchise Tax Board, the California Department of Tax and Fee Administration, the State Board of Equalization, the Office of Tax Appeals, and the Los Angeles Office of Finance. Ruben also has experience representing clients in California courts and challenging unlawful taxes.

Recognition & Leadership

Awards & Accolades

• Listed, The Best Lawyers in America, 'Ones to Watch,' Tax Law, 2024-2025

 

Ruben Sislyan (Los Angeles, California) View website

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Services

Areas of Law

  • Other 2
    • Tax
    • State & Local Tax (SALT)

Practice Details

  • Firm Information
    Position
    Shareholder
    Firm Name
    Greenberg Traurig, LLP
  • Representative Cases & Transactions
    Cases
    Experience: Representative Matters: Challenged an unconstitutional property tax disguised as a local business tax, securing a multimillion-dollar judgment for a major oil company.
    Represented a major energy sector company in reversing the California Franchise Tax Board's classification of income from a failed merger as business, rather than nonbusiness, income, saving the company millions of dollars in tax, interest,
    penalties.
    Represented a grocer in overturning Los Angeles's long-st
    ing policy of illegally overtaxing wholesalers.
    Representation of professional athletes
    high-net-worth individuals in state residency disputes, including a major win for a prominent NFL athlete before the California State Board of Equalization.
    Represented two global rental car companies in challenging an unlawful tax disguised as a user fee.
    Represented a California-based apparel company in securing a seven-figure sales tax reduction.
    Represented a medical technology company in a commercial domicile case, wiping out the entire tax assessment in excess of ten million dollars.
    The above representations were h
    led by Mr. Sislyan prior to his joining Greenberg Traurig, LLP.
    Previous Experience: Senior Associate, Deloitte Tax, LLP, 2012-2016
    Internships: Judicial Extern, Hon. Peter H. Carroll, U.S. Bankruptcy Court for the Central District of California, 2012
    Tax Intern, Ernst & Young, LLP, 2011
    Legal Extern, Internal Revenue Service, 2010
  • Additional Links
    https://www.gtlaw.com/en/professionals/s/sislyan-ruben

Experience

  • Bar Admission & Memberships
    Admissions
    2012, California
    U.S. District Court for the Central District of California
    U.S. Tax Court
  • Education & Certifications
    Law School
    Loyola Law School, Los Angeles
    Class of 2012
    J.D.
    Concentrations in Corporate Law and Tax Law

    Loyola Law School, Los Angeles
    Class of 2012
    LL.M.
    Taxation, with highest distinction
    Other Education
    University of Southern California
    Class of 2007
    M.A.
    Economics

    University of Southern California
    Class of 2007
    B.A.
    Economics, cum laude

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Attorneys FAQs

  • What year was this attorney first admitted to the bar?
    Ruben Sislyan was admitted in 2012 to the State of California.
  • How many attorneys are in this law firm?
    Greenberg Traurig, LLP has 2750 attorneys at this location.
  • What year was this attorney's law firm established?
    Greenberg Traurig, LLP was established in 1967.

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