November 5, 2021
To: Real Property Listers, County Treasurers
The Wisconsin Department of Revenue (DOR) posted the 2022 Assessment and Tax Roll XML instructions to our website.
2021 Final Tax Roll Submission – Due March 15, 2022
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2021 Wisconsin Act 55 requires the county treasurer to provide DOR with the complete county tax roll by March 15 each year
- Submit your 2021 county tax roll to DOR no later than March 15, 2022
2022 Assessment and Tax Roll XML Schema
- No schema changes for 2022
- Submit one real estate XML and one personal property XML for each municipality
- Name each XML with its corresponding DOR Co-muni code – to improve the XML names and quickly identify which file belongs to a specific municipality
- Submit one real estate XML and one personal property XML for each municipality – to make the XML easier to locate when working together to troubleshoot issues
- Upload the county – send a zip file with all municipality XML included
- Send a single zipped file for each real estate XML and each personal property XML

- Make sure the zipped file only contains xml files

- Do not include internal folders in your zip file

- Send DOR your public (redacted) data to maintain consistency with providing any data
Filing Assistance Updates
- Can submit real estate XML with one parcel (ex: Counties with a split municipality and the XML has one real estate parcel in the XML)
- Acknowledgement emails now contain parcel numbers when an XML does not meet the schema requirements
- See our filing assistance document available our
website
Questions?
Contact us at otas@wisconsin.gov.