Property Tax 101

Washington County, Missouri - Assessor's Office

The Washington County Assessor is responsible for appraising real estate and assessing a property tax on properties located in Washington County, Missouri. You can contact the Washington County Assessor for:

• Information on your property's tax assessment
• Checking the Washington County property tax due date
• Reporting upgrades or improvements
• Appealing your property tax appraisal
• Your property tax bill
• Paying your property tax

102 North Missouri StreetThe Washington County Assessor's Office is located in Potosi, Missouri. Potosi is the county seat of Washington County, where most local government offices are located. The assessor's office is located in the same building as the Washington County Courthouse, at 102 North Missouri Street.

Washington County Assessor Contact Information

Washington County Assessor's Office Services

There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the Washington County Tax Assessor may also serve as the Washington County Tax Appraiser.

1. The Washington County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in Washington County.
2. The Washington County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
3. The Washington County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in Washington County, and work with the sheriff's office to foreclose on properties with delinquent taxes.

When contacting Washington County about your property taxes, make sure that you are contacting the correct office. You can call the Washington County Tax Assessor's Office for assistance at 573-438-4992. Remember to have your property's Tax ID Number or Parcel Number available when you call!

If you have documents to send, you can fax them to the Washington County assessor's office at 573-436-0014. Please call the assessor's office in Potosi before you send documents or if you need to schedule a meeting. If you have general questions, you can call the Washington County Courthouse at 573-438-4901.

Learn More

Find the tax assessor for a different Missouri county

Find property records for Washington County

The median property tax in Washington County, Missouri is $522.00

All of the Washington County information on this page has been verified and checked for accuracy.
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