Provides formulas used to calculate personal property, residential real property, and commercial real property

Use this calculator to estimate the amount of tax you will pay when you title your motor vehicle, trailer, all-terrain vehicle (ATV), boat, or outboard motor (unit) and obtain local option use tax information. You pay tax on the sale price of the unit less any trade-in or rebate.

Taxes are imposed on the assessed value. Vehicle values are based on the average trade-in value as published by the National Automobile Dealers Association (RSMo 137.115.9). The declaration form is due by April 1st. If you fail to file your declaration form with the Assessor's Office or the form is filed late, you will be assessed a 10% penalty. Review available methods to declare your Personal Property. If you are a new resident to the State of Missouri or did not own a motor vehicle on January 1st of the prior year you qualify for a tax waiver.

St. Louis County may not own or control the contents of this link. ... Personal property (for your car, motorcycle, trailer, etc.) and real estate property tax amounts can be found on our property tax inquiry and payment page.

Calculate how much you'll pay in property taxes on your home, given your location and assessed home value. Compare your rate to the Missouri and U.S. average.

To calculate taxes owed on a $100,000 vehicle at a 6.5694 total tax rate per $100 of assessed valuation:

Property tax rates are amounts per $100 of assessed value on a piece of property. This rate applies to personal property as well as real property. Commercial real property, however, includes an additional sur tax of $1.64 per $100 of assessed ...

July 30, 2025 - Curious about your car property tax in Missouri? Learn how it’s calculated, what factors affect the amount, and how to estimate your 2025 tax bill.

The Department collects taxes when an applicant applies for title on a motor vehicle, trailer, all-terrain vehicle, boat, or outboard motor (unit), regardless of the purchase date.

For real property, the market value is determined as of January 1 of the odd numbered years. For personal property it is determined each January 1. Market value of vehicles is determined by the October issue of the NADA. Once market value has been determined, the assessor calculates a percentage of that value to arrive at assessed value.

Sign Up for a new City of St. Louis account ... Low Temperatures: Low Temperatures: Code Blue Shelter Protocols activated 1/16 6pm to 1/19 9am Code Blue Shelter Protocols activated 1/16 6pm to 1/19 9am Close this alert ... Personal property taxes are due by December 31st of each year. The Personal Property Tax Department collects taxes on all motorized vehicles, boats, recreational vehicles, motorcycles, and business property.

Navigate your St. Louis County, Missouri property taxes with ease. Use our calculator, review assessment values, and find ways to save money with Ownwell.

Once the mandatory required input fields are entered, the data will flow into the electronic tax rate computational forms, which are printable. Note: All of the calculators are Excel files that may be downloaded. The State Auditor's Office has no authority to determine or review individual tax assessments.

The Collector of Revenue serves as the billing, collecting and disbursing agent for more than 200 different taxing districts in St. Louis County.

Calculate your property taxes in St. Louis County, Missouri using official county tax rates.

An original (or copy) paid personal property tax receipt or a statement of non-assessment from your county of residence (or city of St. Louis) for the previous year.

Please Note: Tax payments will be applied to outstanding balances in the following order: amounts due for prior years, interest due, water/sewer insurance, current tax balance · Office Hours are Monday through Friday from 8:30am to 5pm. If you need additional assistance, or have any questions ...

Local Option Use Tax continues to be collected on manufactured homes purchased out-of-state and to manufactured homes sold

The Assessor's Office is responsible for the annual assessment of personal property for individuals and businesses, preparing statements of non-assessment (tax waivers), and maintaining the assessment roll.