Treasurer's Office - Due Dates by Municipalities
Mission Statement: The Treasurer's Office mission is to provide the highest standards of service to our residents, to support local government and taxpayers with efficient and accurate tax and assessment information.  Our fiduciary responsibility is to ensure the sound management of public funds by maximizing earnings, maintaining liquidity, and safekeeping all funds.

Location:

Administration Center

Treasurer's Office, Room 107

121 W. Main Street

Port Washington, WI 53074

Office Hours: 8:30 a.m. to 5:00 p.m.


Phone Local:  262-284-8280

Phone Metro:  262-238-8280

Fax Local:  262-284-8373

Fax Metro:  262-238-8373


After hour payment drop box is located west of the Main Street doors

Mailing Address:

Ozaukee County Treasurer

P.O. Box 994

Port Washington, WI 53074-0994

Contact Information

Treasurer:  Karen Makoutz

Office Manager:  Carolyn Steen
Assistant Real Property Lister:  Doris Dommer
Account Clerk:  Michele Thill

Tax bills are mailed before the third Monday of December.

Two installment municipality due dates:  

1st installment to the municipality is due January 31st
2nd installment to the county is due July 31st

Two Installment Municipalities:

Belgium, Town & Village
Cedarburg, City & Town
Fredonia, Town & Village
Mequon, City
Newburg, Village
Port Washington, City & Town
Saukville, Town & Village
Thiensville, Village 

Pay taxes to the above two installment municipalities through January 31st. 
Pay the county all remaining real estate tax balances starting February 1st. 
All personal property tax payments are due to the municipality. 

Three installment municipality due dates:  

1st installment to the municipality is due January 31st
2nd installment to the municipality is due March 31st  
3rd installment to the municipality is due May 31st
 

Three Installment Municipalities:

Bayside, Village
Grafton, Town & Village

Pay taxes to the above three installment municipalities through July 31st. 
Pay the county all remaining real estate tax balances starting August 1st. 
All personal property tax payments are due to the municipality.

Delinquent Tax Information:

All delinquent taxes are subject to interest of 1% and penalty of 0.5% per month compounded monthly from February 1st until paid in full.  Example:  February 1.5%, March 3.0%, April 4.5% etc. until paid in full.

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