Sam Guevara

Overview

Sam Guevara is a Principal and Practice Leader for Business Solutions at Ryan, based in the Firm’s Irvine office. He leads global initiatives that help clients modernize and optimize their tax organizations through technology-enabled process improvement, automation, and data-driven decision-making. Sam works closely with tax, finance, and IT leaders to align business objectives with scalable solutions that improve efficiency, governance, and compliance.

With extensive experience spanning consulting, industry, and public service, Sam brings a broad and practical perspective to tax technology and business transformation. His background includes leading national and global indirect tax and emerging technology practices, where he supported transaction tax compliance, unclaimed property, property tax, value-added tax, and reverse audit recovery services. Sam is also a frequent speaker on tax technology and process transformation topics for professional and industry organizations, including Council On State Taxation, the Institute for Professionals in Taxation, and Tax Executives Institute, contributing thought leadership on automation, analytics, and operating model design.

Education and Qualifications

Bachelor of Accountancy, University of San Diego

Experience and Achievements

Principal and Practice Leader, Business Solutions, Ryan, Irvine office

• Leads global teams delivering tax technology solutions and business process improvements

• Advises clients on automation, analytics, and operating model design for tax organizations

Principal and Global Practice Leader, Tax Technology, Ryan Irvine office

Principal and U.S. Indirect Tax Practice Leader and Chicago Partner-in-Charge, Emerging Technologies, big four accounting firm

• Led national indirect tax and technology-enabled service delivery teams

• Oversaw implementation of tax engines, analytics, automation, and advanced data solutions

Senior Tax Auditor, California State Board of Equalization