Mark Brumbelow, CPA, is a Tax Shareholder in LBMC’s Chattanooga office.
He is a nationally recognized authority in complex business tax strategy. He has served as a trusted advisor to a wide range of businesses for 25 years, navigating regulatory complexity, transactions, and succession planning. Brumbelow advises companies on sophisticated tax planning, income tax accounting, and multi-jurisdictional compliance. With a deep background in ASC 740 income tax accounting and a strong track record advising complex business entities, Mark serves clients across a variety of sectors, including healthcare, manufacturing, financial institutions, and logistics.
He has returned to LBMC’s Chattanooga office to expand the firm’s leadership presence and provide technical guidance on complex matters faced by Chattanooga businesses. He advocates for the accounting profession volunteering with the AICPA and is frequently engaged as an author, speaker, and media resource on emerging tax policy and strategy. He is also active in the Chattanooga arts and service communities.
Mark originally joined LBMC in 2003, where he served in both the Brentwood and Knoxville offices through 2014. During this time, he advanced from Supervising Senior to Senior Tax Manager, playing a key role in delivering income tax provision services and advising private-equity-owned and publicly held clients.
Prior to rejoining LBMC, Mark served as Firm Managing Principal for Tax Services at PYA, where he led a multi-location tax team and oversaw firm-wide technical consulting on mergers, acquisitions, and due diligence. He was instrumental in establishing quality review protocols, mentoring professionals across the firm, and shaping administrative strategies that enhanced both service delivery and internal operations.
At LBMC, Mark specializes in guiding businesses — ranging from closely held pass-through entities to publicly traded corporations — through multi-jurisdictional compliance, strategic tax planning, and tax provision preparation. He is highly regarded for his ability to navigate complex compliance landscapes, manage high-risk issues, and develop future-focused tax strategies that support growth.
He currently serves on the AICPA Corporations and Shareholders Technical Panel and is an active contributor to the professional community through board service, published thought leadership, and continuing education instruction.
Education:
- University of Tennessee, Knoxville, Master of Accountancy, Bachelor of Science, Business Administration
Certifications:
- CPA