Get to Know Me

Dan Mayo is a Partner with over 25 years of professional tax experience in federal, international, and financial products taxation. As the Lead for Withum’s National Tax Services practice, he helps businesses structure their affairs and plan transactions to minimize federal income taxes. He is experienced in mergers and acquisitions, capital markets transactions, and cross-border transactions, and he represents individuals and businesses in tax controversies with the IRS. Dan also serves as an expert witness in litigation involving tax issues

Dan is a recognized expert in the areas of Qualified Small Business Stock (QSBS) and the Employee Retention Credit (ERC), and he co-leads Withum’s ERC Group. He keeps a pulse on federal income tax matters and upcoming legislation, and not only is he a thought leader within the Firm, but he is also an adjunct tax professor at Georgetown University Law Center and a frequent contributor to Forbes, writing on all things tax and sharing best practices for minimizing taxes for businesses and HNW individuals.

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Give Back

As a tax professor at Georgetown University Law Center and an approved arbitrator for FINRA, Dan has an affinity for sharing his knowledge with others. He is a frequent speaker on webinars and at external tax conferences, and he writes for tax publications like the Daily Tax Report and Tax Notes Today. Previously, Dan served as the Chair of the Banking & Savings Institutions Tax Committee of the American Bar Association’s Tax Section.

Work Hard/Play Hard

Outside of the office, Dan’s hobbies include pickleball, tennis, swimming, and most importantly, spending time with family.

Latest Thinking

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Cannabis Tax Frenzy

The cannabis tax community is abuzz with rumor and delight. The giddiness stems from a recent announcement by a publicly traded cannabis company that it obtained large tax refunds from […]

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tiles spelling out ERC
Landscape of Employee Retention Credit Tax Issues

There is a lot going on with the employee retention credit (ERC) these days and it can be hard to keep up with the latest developments. From Congressional proposals to […]

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Navigating ERC Tax Audits and Investigations

Withum and Kostelanetz LLP collaborate to break down ERC tax audits. The employee retention credit (ERC) has exploded in recent years and the IRS has started cracking down on improper […]

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