Search Barton County Property Taxes

Barton County property tax records are managed from the courthouse in Lamar, Missouri. The county has an online assessor portal and a separate taxpayer search tool that let you look up tax bills, assessed values, and payment status from home. You can also visit the collector or assessor in person at the courthouse on Gulf Street. This page covers all the ways to search, pay, and get copies of Barton County property tax records.

Barton County Collector-Treasurer

Brittanica Born serves as the Barton County Collector-Treasurer. Her office is at 1004 Gulf Street, Room 101, Lamar, MO 64759. The phone number is 417-682-5881 and the fax is 417-682-4136. Email the office at colltreas@countyofbarton.gov. Hours are Monday through Friday, 8:30 AM to 4:30 PM. Deputy staff include Kim Rea, Dean Sullivan, Jill Peters, and Koleton Mahurin.

Tax bills in Barton County are usually mailed out by mid-November. If you have not received your bill by November 30, call the collector at 417-682-5881. Missouri law says you must pay by December 31 regardless of whether you got a bill in the mail. Bills are also available online around the clock. Tax bills can get lost in the mail sometimes, but your payment obligation stays the same either way.

The Barton County tax sale takes place on the fourth Monday of every August at 10:00 AM. It is held on the first floor center hallway of the courthouse. Brochures about the tax sale process are available at the office. Tax sale lists come out as of August 1 each year. The collector also handles merchant licenses, which cost $25 per year. You need your Missouri Retail Sales License to apply.

Barton County Assessor Property Records

Chad Johnson is the Barton County Assessor. His office is at 1004 Gulf St., Lamar, MO 64759. Call 417-682-3553 to reach the assessor. The staff includes Deputy Assessor Terry Garfield, Personal Property Clerk Taylor Nelson, and Field Appraiser Andy Haag.

The Barton County Assessor Portal is the main place to search property tax records online. You can search by account number, name, or address. The portal also has GIS mapping, property photos, and a subscription site for more detailed data. Personal property search is free for basic lookups. Type in your name to get an estimate of what you owe.

You can also request a tax waiver (Statement of Non-Assessment) through the Barton County assessor's website. Waivers are available for new state residents, first-time vehicle owners, people who did not own personal property on January 1, military personnel whose home record is not in Missouri, and leased vehicles where the leasing company paid taxes. The assessor's site also has a change of address form for real estate, personal property, and business accounts. If your address is not updated, your bill might not reach you, and that does not relieve your tax obligation.

Barton County Tax Record Search Methods

The Barton County collector's taxpayer portal at bartoncountycollector.org lets you search tax records several different ways. You can look up records by full name, partial name, real estate statement number, personal property statement number, personal property parcel number, or real estate parcel number. Results are limited to the first 100 records, so the more specific your search, the better your results.

The search format matters. Real estate statement numbers start with R followed by the number (like R1912345). Personal property statements start with P. General statement numbers use the S- prefix. Real estate parcels use a long format like 01-1.0-01.0-000.0-000-123.456. For name searches, you can use a partial name if you are not sure of the exact spelling.

Assessment rates in Barton County follow RSMo 137.115. Residential property is assessed at 19% of market value. Commercial sits at 32%. Agricultural at 12%. Personal property at 33 1/3%. Values are set using a standard rate book. If your vehicle series is not specified, the assessor picks the most expensive one. You can find your assessed value in the lower right corner of your tax statement.

Barton County Tax Questions

The Barton County assessor's website has a helpful FAQ section. The most common question is why you got taxed on a vehicle you sold. The answer is simple. Missouri taxes you based on what you owned on January 1 of the tax year. There is no proration for sales or purchases during the year. If you owned it on January 1, you owe the full year. The same rule applies if you move out of state. Your tax obligation was set on January 1, so you still owe even if you no longer live in Missouri.

To avoid late fees, your payment must be postmarked no later than December 31. Payments postmarked after that date get returned and penalties get added. For license plate renewal, you need a paid tax receipt or waiver from the previous year, an inspection slip (unless the car is new), proof of insurance, and your renewal notice if you have one.

If you think your Barton County assessment is too high, appeal to the Board of Equalization through the county clerk before the third Monday in June. Further appeals go to the Missouri State Tax Commission. The Missouri Property Tax Credit is also available for qualifying Barton County residents.

Note: Cash, check, and credit card payments are all accepted at the Barton County Collector's office in Lamar.

Nearby Counties

Barton County is in western Missouri near the Kansas border. These are the neighboring counties.