About
More about us and our founder.
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Our Story
Working in accounting and tax, Kristina quickly learned that small businesses are often overlooked. Most financial services focus on larger operations that require full-service support.
Small business owners often face limited options: general support that doesn’t quite fit or is too costly, or the challenge of doing it all themselves.
Keystone Numbers offers a fresh approach to financial services with flexible, tailored solutions. We blend traditional CPA expertise with modern business needs, going beyond the limitations of conventional services.
About Kristina
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
PTIN Registered Tax Preparer, IRS
Education
Master of Science in Taxation, Golden Gate University, 2018
Bachelor of Arts in Accounting, Cal State Fullerton, 2015
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