COUNTY TREASURER, Lorraine Beyersdorff, receives deposits and invests all moneys belonging to the County; collects postponed and all delinquent real estate taxes and distributes said taxes to appropriate municipalities and school districts. Handles applications for tax deeds and takes property if taxes remain unpaid. Oversees property description functions of preparing assessment rolls, and real and personal property tax bills for all municipalities in the county, excluding the City of Wausau. Workbooks of all individual owners are kept consisting of maps and land description.

Note: 1st installments are due to local treasurers. City of Wausau collects all three installments through July 31st.

Tax Payments: County Treasurer collects postponed and delinquent taxes after January 31st.
Hours 8am to 4:30 pm Monday-Friday except July 4th
Phone 715-261-1150 Fax 715-261-1166

Payment by mail is encouraged.

Mail to :
Marathon County Treasurer
500 Forest St
Wausau WI 54403

Enclose your PIN number/or numbers with payment– (similar to 006-3003-252-0999) found on your tax bill/s.
Deadline is July 31st. Postmark of July 31st is accepted as timely, but an August 1st postmark will be delinquent with interest and penalty (10 ½% in August calculated from February 1st)

Credit card payments can be made through Official Payments Corp with a 3% charge.
On the internet at www.officialpayments.com or Call 1-800-272-9829.
Use jurisdiction code of 5853. Pin number as above.

Tax and assessment information is available at www.co.marathon.wi.us/online
Searches are by legal, address, PIN number (Searches are not by name).