St. Louis County, Missouri Tax Assessors' Office

Where is the St. Louis County Tax Assessor's Office?

While many counties have county-wide tax assessors, St. Louis County has one cities and towns with their own local tax assessors. If your property is located within any of these localities, see that page for your tax assessor's contact information.

What can the St. Louis County Assessor's Office do for me?

The St. Louis County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in St. Louis County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a St. Louis County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the St. Louis County Assessor's Office at (314) 615 2555 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

How can I contact St. Louis County?

You can try contacting the St. Louis County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for St. Louis County is located in the County Courthouse in Clayton, which is where the St. Louis County Assessors' Office is also located. You can direct your general inquiries to St. Louis County with the contact info listed below.

St. Louis County Phone Number

314-615-5432

St. Louis County County Courthouse Address

County Courthouse
41 South Central Avenue
Clayton, MO 63105-1719

Useful St. Louis County Links:

• Pay Your Property Tax
• Property Tax Search Tool
• City of St. Louis Property Tax Search
• St. Louis County Government Homepage
• St. Louis County Assessors' Office Homepage
• City of St. Louis GIS Map
• City of St. Louis Property Taxes