OPEN SYSTEMS® Accounting Software

*** Wisconsin Payroll Tax Update ***

 Effective July 1, 2000

Effective July 1, 2000 the Wisconsin State Withholding Income Tax rate for married and single statuses will change. Consequently, your OSAS Payroll STXWIM and STXWIS tables must be edited, table STXWIU must be deleted, and formula PWI__SWH.RTN must be edited to calculate the correct rate.  Follow the instructions in the document provided below to make the appropriate adjustments.

Click on the appropriate link below to view the update instructions, or right-click the link and select Save Target As to save the instructions to a location on your computer:

Date Title Version(s) Size


 Wisconsin State Withholding Tax Tables - Microsoft Word Format

 5.25 / 6.03 / 6.05



 Wisconsin State Withholding Tax Tables - PDF Format*

 5.25 / 6.03 / 6.05



Warning: This is a version 5.25, 6.03, or 6.05 table. Do not use it with version 4.5x or 4.6x.  Contact Advanced Concepts, Inc. if you are running on an OSAS Payroll version other than those listed above.

Phone        (414) 362-9640



* Requires Adobe® Acrobat® Reader - download it [HERE]