Call Us: (847) 854-4500

Firm Profile

Fiona Chen, MPA, Ph.D, CPA , former IRS Revenue Agent and University Assistant Professor, and currently Illinois licensed Certified Public Accountant, established #1 Tax & Accounting Service in January 2008 as a Public Accounting Firm. Since its inception, the firm obtained privilege from IRS for e-services and initiated its business in the village of Huntley and expanded practices to Algonquin in McHenry County of Illinois.  We have established tax and accounting clientele in individual and small businesses. Our main office is at Algonquin, Illinois. We meet with our clients where they are. In addition to clients throughout the entire Chicagoland such as, Aurora, Arlington Heights, Des Plaines, the City of Chicago, and the South Side of Chicago, we also serve clients nation-wide and internationally through our website secured portals and direct mailings.

Fiona Chen Consulting Company is established in 2011 to expand our services in IRS Issue Resolution and Difficult Tax Law Research, as well as in Business Valuation, Litigation Support, and Forensic Accounting. Dr. Chen also provides expert witness service in her speciaty areas of Government Finance, IRS Disputes, Fraud Detection/Prevention, Tax and Forensic Accounting.

We used the best softwares available in the market with the most advanced, up-to-date technologies to serve our clients. Yet, we keep our fees affordable and reasonable.

We also welcome expatriate and international clients.