Nichols Income Tax and Bookkeeping has been operating in Orange County, CA. since 1971. Our primary focus is Tax Preparation and Audit Representation. We prepare personal returns for all states and partnership or corporation (S or C) returns for all states. We also prepare estate tax returns (Form 706) and gift tax returns (Form 709) for residents of California.

We offer Bookkeeping and payroll services to small companies.


We work with you on a personal level to determine the best solutions for your unique needs, then use our seasoned expertise to achieve the best possible results.


We have been in business for over 40 years and are very proud that our clientele consists of our original clients and their referrals. I think this because we try to give professional services at a fair price and we emphasize the individual attention they deserve.


Rest assured that when a need arises, our firm is ready and capable to handle any tax problem you might have.

Staff Profiles

Jon Nichols, EA

The founder of Nichols Income Tax. Jon has been preparing taxes since 1968. He graduated from Long Beach State in 1963 and is an Enrolled Agent. He specializes in minimizing difficult tax situations for both individuals and small businesses by knowing the tax law and how to use it to best advantage.

Kristin Margetts, EA

Has been preparing taxes with Nichols Income Tax since 1996. She graduated from Long Beach State in 1963and is an Enrolled Agent. Enjoys tax situations problem solving.

Lynn Langley, Tax Preparer

Has been preparing taxes with Nichols Income Tax since 1981. She is certified by the California Tax Education Council for the preparation of income taxes in California, and is bonded and insured.

Erica Rodriguez, EA

Erica Rodriguez has been working at Nichols Income Tax since 2010. She started out helping in the front office and has since taken on many responsibilities in all aspects of running of the office. She began doing small taxes in 2010, and has been an Enrolled Agent since 2015. Erica is looking to take on new tax clients in the coming years. She’s also accepting new clients for bookkeeping and payroll services.