Tax Exempt?

Custom Service Hardware now enables and supports online tax-exempt buyers. If you would like to take advantage of your status as a tax-exempt customer, please download and fill out one of the following forms. You may then return the completed form to tim@cshardware.com. Please allow 1 business day for processing. Please note that orders fulfilled prior to the processing of the application will not automatically be tax exempt, but a credit may be issued for tax-exempt customers who have begun the process. Please call 800-882-0009 if you have any questions.




Custom Service Hardware charges sales tax only in Wisconsin, Michigan, Illinois, and Indiana. All other states, provinces, and international orders do not have sales tax and do not need to submit forms. Exempt customers from only these four states should submit copies of these forms.


  • Email to: tim@cshardware.com
  • Fax to: (262) 375-7970
  • Mail to: Custom Service Hardware, 1170 N Wauwatosa Rd, Cedarburg, WI 53012