• Larry G. Boss, CPA 
  • Gerald R. Deller, CPA/ABV, CVA 
  • Vicki McKnight, CPA 
  • Kelly Coppedge, CPA 
  • John C. Curtis, CPA 
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Boss Deller + Co. Certified Public Accountants, Inc., located in Modesto, California, is a full service local accounting firm with a complete professional staff to meet the most complex accounting, auditing and tax needs of your organization.


The firm provides accounting services for its clients located throughout the Central San Joaquin Valley, the majority of which may be found in the Modesto, Sacramento, Ceres, Stockton, Turlock, Oakdale and Sonora areas.




The future of our firm lies in providing excellent service, as expected from our clients, by concentrating our efforts where they will be most effective and lead to long-term benefits.




We believe that human resources - both our own and the clients` - should be focused on those things that will be most effective and have long-term benefits.
Education, both formal and informal, is important for our staff and the staff of our clients.
Appropriate current updates are provided to maximize effectiveness and performance.


We believe that technology provides a powerful gateway to the future.

We are committed to continually evaluating and updating our systems to take advantage of new resources as they become available.

We must be available as a reference for information and to interface with the technology of our clients.


We believe that the integration of multiple services leads to quality performance. We provide a range of services, with in-depth expertise in accounting, financial reporting, tax, estate, and financial planning, business consulting, litigation support, and information management. We believe that service to our clients is our duty.

We listen to our clients and work toward mutually agreed-upon goals.
Thorough inquiry precedes our analyses to provide solutions to the underlying structure, not merely the symptoms.
Service is a continuum that does not end with a specific engagement, but persists throughout the year.
By maintaining contact in this way we can better provide our clients the information necessary for their success.

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