Assessment and Tax Roll Electronic File Transmissions

The Wisconsin Department of Revenue (DOR) requests that all work, assessment and tax rolls are filed using Extensible Markup Language (XML) File.

Preparing the data using XSDschema

Transferring the data

Send the file with file transfer protocol (FTP)

  • Note: Make sure to select the appropriate County (Cnty asmt Rolls) from the drop-down list of files

Helpful links

If you have any questions, please contact us at (608) 266-8139 or DOR OTAS Technology and Applications.

Common Questions

Common Forms


2013 Income Tax Forms and Instructions: