John Ismerio ISTAXPro

John Ismerio, MBA

Founder & CEO

19 years of providing tax and accounting services.

John has been helping small businesses and non-profits to achieve their goals.


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Rose Ismerio, BA

General Manager

Managing partner and officers for ISTAXPro.

With her 12 years of experience, Rose devoted to help and engage with all business owners regardless the size.


Marco Ang

Junior Accountant

Marco assists broad scope of services from tax preparation to QuickBooks for Business.

His goal is to provide efficient and accurate services for ISTAXPro's clients

Chau Ton

Junior Accountant

Chau's passion in Accounting makes her duties an exciting one. She assures that tasks are done precisely.

She wants to help clients by giving informative helpful data.


Robert Perez

Junior Accountant

With his strong customer service skill, Robert is providing quality tax preparation experience.

He contributes on updated tax research in order to give best tax planning for the clients.

Flor Sanchez

Junior Accountant

10+ years experience in Credit Analyst field, Flor expands her horizon in tax and bookkeeping services.

Speaking fluent English and Spanish, Flor hopes to add values for local and national clients.


Cecilia Zavala

Junior Accountant

As an accounting enthusiast, Cecilia combines her administration skill and experience to give best accounting services.

Cecilia also provides pleasant ideas to help all ISTAXPro accountants.

Maira Robles

Junior Accountant

QuickBooks specialist for ISTAXPro, Maira performs her duties through cloud platform.

Maira set the strong standard for quality bookkeeping service to help ISTAXPro's clients.