Winnebago County Treasurer Welcomes You!
- Help combat property/mortgage fraud - This service is free of charge to the property owners in Winnebago County.
- 2013_tax_rates.pdf - 2013 Tax Rates and Assessment Ratios.
- alphabetical_listing_of_1999-2007_unclaimed_funds.pdf - This is an alphabetical list of checks Winnebago County issued from 1999-2007 that have not been cashed. If you find your name on this list please contact the Treasurer's Office at 920-236-4777 for a claim form.
- Property Information Lookup - This link will include current owership information for Winnebago County properties and will only include City of Oshkosh, Neenah, Menasha or Appleton properties if there is a delinquent tax balance. If you are looking for current ownership information please use one of the links below.
Pay Taxes Online - Winnebago County, WISCONSIN. This link will take you to an outside vendor. There is a fee to pay taxes using this service. The fee is 2.39% of the payment amount or $1.50 using e-check. Payments will take 5-7 days to appear as paid on the county website. The Cities of Menasha, Neenah and Oshkosh collect the current year taxes (2013) through July 31, 2014.
Other Cities Tax Information