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Orange County Accounting & Tax
Mark Tehrani, CPA

Welcome to Mark Tehrani, CPA! We offer personalized accounting, tax, and consulting services to our individual and business clients located in the Tustin area and other Orange County locations. In addition, we help our clients plan their budgets effectively no matter where they are in their profession, even retirement. Being a small firm, our clients benefit by getting personalized, quality service that is beyond comparison. With us, you can expect:

Efficient and Worry-Free Service

We are always working around the clock to ensure all necessary documentation is complete in a timely manner. As soon as they are completed, we utilize both e-file and fax to send them over to you as fast as possible. In addition, we can meet with you to plan your budget so that you can make the right financial decisions. What better way to provide financial services than to remove the stress of meeting deadlines.

Open Communication

Taxes and budgets never stop working, so why should we? We strive to stay in constant contact with our clients and can be reached at any time, even outside office hours. While we will consistently notify you on the status of your documents, you can reach us whenever you need too. Feel free to call, email, or schedule an appointment and we will meet with you to get your questions answered.


For over 7 years, we have been committed to providing our clients with the best financial services possible. How? Well, it's a long story...

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As an all-around CPA firm, we do not just do the bare minimum. We work diligently to provide a variety of financial services.

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