At the request of AMTA Wisconsin, the Wisconsin Department of Revenue has created a Massage Therapy Sales and Use Fact Sheet that covers taxable and non taxable purchases and sales.
You may download the PDF by clicking here.
Other useful links:
Publication 225, Barber and Beauty Shops includes information applicable to massage therapy. Download here
Medical massage clinics serving 3 or more patients at a time may also with to refer to Publication 248, Hospitals and Medical Clinics. Download here.
A list of all tax publications by the WI DOR is available here.