Tax preparation and planning, done right.

Since 1986, The Donovan Company has prepared returns and built tax plans for individuals, real estate investors, healthcare professionals, and small business owners across Southern California. Same firm, same approach: know the client, do the work carefully, be there year-round.

9930 Research Drive, Irvine, California

For our clients

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What we do

Tax preparation

Federal and multi-state returns for individuals, businesses, trusts, and estates.

Tax planning

Year-round planning for individuals, real estate investors, healthcare professionals, and small business owners.

IRS & FTB representation

Notice response, examination, and resolution. We handle it so you don’t have to.

Estates & trusts

Fiduciary returns, gift and estate tax planning, and post-mortem administration.

California PTET

Passthrough entity tax elections and computations for S corporations and partnerships — an important California planning tool for owners of qualifying entities.

Visit or get in touch

Address: 9930 Research Drive, Suite 100
Irvine, CA 92618
Phone: (949) 640-1333
Fax: (949) 640-6842
Hours: Monday–Friday, 8 AM – 4 PM