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John Gillingham, CPA – 2023 “40 Under 40” Honoree

John Gillingham, CPA – 2023 40 Under 40 Honoree

Owner Director
Gillingham CPA:

Recent Activities
2023 marked a year of revival for the iOS Accounting Play apps created by Gillingham CPA: Accounting Flashcards, Debits and Credits, and Accounting Quiz. As a firm we have continued to refine our Value Added Framework, and narrow the focus on the clients we serve: Other seemingly minor accomplishments that have been extraordinarily helpful have been our one click calendar population tool for key tax due dates, along with step by step instructions on how to pay taxes. Those free resources may be found on the site: |

What are you doing to make a difference in the profession, your community, the world?

Beyond serving Bay Area clients in the areas of equity comp, small business, and seed stage startups, we have an educational company. Through and the associated apps we have helped millions of students and professionals learn accounting differently. The vast majority of content can be found free online or in full for extremely affordable prices. Anyone curious can get our free and extremely Accounting Cheat Sheet along with the Debits and Credits workbook here:

Current Professional Reading / Listening:

  • The E-Myth, Michael Gerber,
  • The Creative Act a Way of Being, Rick Rubin,
  • The Seven Habits of Highly Effective People, Sean Covey

See all of the 2023 “40 Under 40” and “20 Under 40” honorees.