Office Locations

Dufek & Company, LLC is positioned to offer expert 401k audits, 403b audits (and other employee benefit plan audits) at extremely competitive rates to businesses in Wisconsin and Illinois.  
Please contact us at either of our locations:

Dufek & Company, LLC
200 South Executive Drive
Suite 101

Brookfield, WI  53005
(262) 720-1256

Dufek & Company, LLC
55 E. Monroe
Suite 3800
Chicago, IL  60603
(312) 848-7616

Some of our 401k audit service area: Chicago, Milwaukee, Madison, Appleton, Arlington Heights, Brookfield, Elgin, Fitchburg, Franklin, Greenfield, Highland Park, Janesville, Kenosha, Libertyville, McHenry, Naperville, Northbrook, Oak Brook, Oshkosh, Racine, Rockford, Schaumburg, Sheboygan, Vernon Hills, Waukesha, Waukegan.

In addition to employee benefit plan audits in Wisconsin and Illinois, we are able to provide services to any state that has adopted the CPA mobilitiy provision in the AICPA/NASBA Uniform Accountancy Act (UAA). The provision specifically allows for interstate practice by CPAs whose home jurisdiction meets the UAA licensure standard.

Over 45 states have now enacted a CPA mobility provision.   

Tax Due Dates