Accounting, Controller & CFO Support for Growing Businesses
Reliable financials, clearer cash flow, and experienced financial leadership without a full-time Controller or CFO.

Reliable financials, clearer cash flow, and experienced financial leadership without a full-time Controller or CFO.


Isom Accounting & Tax is a Southern California CPA firm providing outsourced accounting leadership, Controller services, fractional CFO support, and CPA services to small and growing businesses.
Whether your accounting needs cleanup, your monthly close needs stronger oversight, or you need better financial reporting, forecasting, and dec
Isom Accounting & Tax is a Southern California CPA firm providing outsourced accounting leadership, Controller services, fractional CFO support, and CPA services to small and growing businesses.
Whether your accounting needs cleanup, your monthly close needs stronger oversight, or you need better financial reporting, forecasting, and decision support, we help bring structure and clarity to your financial operations.
Our services also include tax preparation and IRS representation for individuals and businesses.
CFO, Senior Director of Finance /Vice President/ Controller and California-licensed Certified Public Accountant (CPA) with over a decade and a half of experience in accounting and finance. Expert in supporting expanding organizations by managing financial processes, people, and systems, ensuring efficiency, control, compliance, and profi
CFO, Senior Director of Finance /Vice President/ Controller and California-licensed Certified Public Accountant (CPA) with over a decade and a half of experience in accounting and finance. Expert in supporting expanding organizations by managing financial processes, people, and systems, ensuring efficiency, control, compliance, and profitability across all business activities.
Nataliya received a Master’s degree in Business Administration with a concentration in Finance from California State University in Long Beach.

Isom Accounting & Tax CPA firm is committed to retaining lasting relationships with our clients by working together on their success in the multifaceted, increasingly challenging, and competitive world.
You can be assured that whether our certified public accountant is creating your financial statements, representing you in front of the
Isom Accounting & Tax CPA firm is committed to retaining lasting relationships with our clients by working together on their success in the multifaceted, increasingly challenging, and competitive world.
You can be assured that whether our certified public accountant is creating your financial statements, representing you in front of the Internal Revenue Service, or preparing your tax returns, we have your best interest in mind.
Isom Accounting & Tax CPA firm and/or its staff are proud to support and be members of the following certified public accountant organizations:



