About
More about us and our founder.
More about us and our founder.
Working in accounting and tax, Kristina quickly learned that small businesses are often overlooked. Most financial services focus on operations that require full-service support.
Keystone Numbers offers a fresh approach to financial services with flexible, tailored solutions. We blend traditional CPA insights with modern business needs, going beyond the limitations of conventional accounting services.
Our mission is to empower business owners to make confident decisions by helping them build strong financial foundations.
In 2019, Kristina tackled the CPA exam with a dream of starting her own business. Six years later, that dream became a reality. She is now a licensed CPA with a Master’s in Taxation and the founder of Keystone Numbers.
Kristina has held roles in accounting, finance, tax, and operations across multiple industries—including Big Four accounting, manufacturing, and tech. Her diverse background offers practical experience in various accounting and tax scenarios.
She grew up in San Jose as part of the emerging first-generation Vietnamese-American community and now lives in Sacramento with her husband and their dog. When she’s not working, Kristina enjoys going on walks with her housemates, watching crime shows, and reading mystery novels.
Credentials
Certified Public Accountant, CA #152656
PTIN Registered Tax Preparer, IRS #P02132019
Intuit Trained Bookkeeper
Education
Master of Science in Taxation, Golden Gate University, 2018
Bachelor of Arts in Accounting, Cal State Fullerton, 2015