CORNERSTONE TAX & ACCOUNTING LLC is a tax and accounting provider based in Okauchee, WI. The firm serves Lake Country and Waukesha County and has been described in source material as serving the area since 2005.

The practice focuses on individual and business tax services, with related accounting and bookkeeping support. Its listed client types include individuals and businesses, making the profile relevant for taxpayers and business owners seeking help with tax preparation and accounting needs.