Bryan J. DeMarchis II

Tax Specialist

Bryan J. DeMarchis II

phone(631) 491-1500 x 17

Bryan J. DeMarchis II is a Tax Specialist with Sales Tax Defense LLC. The firm specializes in sales, use, and transaction taxes. Brian has been with the firm for over 6 years and has experience in multiple areas of tax representation.

Areas of Practice

  • Multi-state sales and use tax consulting
  • Multi-state sales and use tax filing
  • Sales and use tax audit defense
  • Disputing Responsible Person Assessments
  • Sales and use tax refunds and recovery
  • Sales tax planning and research
  • Due diligence reviews
  • Payment Plans
  • Voluntary Disclosure Agreements
  • Nexus Studies
  • Offers-in-Compromise
  • Bulk Sales Filings
  • Penalty Abatements
  • Sales and Use Tax Checks Ups
  • Representation before government revenue agencies and auditors
  • Representing clients at Bureau of Conciliation and Mediation Services hearings

Professional Affiliations

  • National Conference of CPA Practitioners, Member

Public Speaking

  • National Conference of CPA Practitioners (NCCPAP)
  • Long Island Tax Practitioners Symposium


  • Master’s degree in Business Administration (M.B.A.) C.W. Post, Long Island University
  • Bachelor of Science, Business Management State University of New York College at Farmingdale School of Business,

Interesting Facts About Joseph

Bryan is an avid outdoors man and sports enthusiast (Islanders, Jets, & Mets). He is currently pursuing his CPA license.