Cass County Assessor

Cass County Assessor Cass County Assessor Serves the Cass County Missouri area with Real estate and Personal Property Assessments.

For E-Filing please click https://cass.missouriassessors.com/ppReportingForm.php?login

To check your Personal Property status, VINS etc please click http://cass.missouriassessors.com/ppSearch.php

To search real estate please click http://cass.missouriassessors.com/search.php

04/22/2026

We’ve had a lot of questions about the recent assessment notices that were mailed out, so here’s some clarification:

These notices are for Personal Property. Personal property includes items like vehicles, trucks, boats, motors, trailers, and similar assets.

This is not a Real estate change notice, and it does not relate to land or home values.

If you noticed an increase in your value, it’s typically because something was newly purchased, added, or updated during the reporting period. These changes are reflected by the owners submitted personal property assessment.

High mileage must be reported annually, If your assessment was increased due to non submission of your high mileage report please submit documentation for your adjustment.

Under Missouri law (RSMo 137.115 and 137.122), personal property is assessed annually based on what you owned as of January 1, and taxpayers are required to report taxable items. Any additions or changes to your property can affect the total assessed value.

If you have questions or believe something is incorrect, please reach out to our office at 816-380-8400—we’re happy to help review your account with you.

01/02/2026

🚨 Heads up! 2026 Assessment Forms Are On The Way! 🚨
Keep an eye on your mailbox 📬! If you’ve e-filed in the past, you should be receiving a postcard from our office.
If you’ve received an assessment form before, look out for that as well. 📝

📅 Deadline: March 1, 2026 — Don’t miss it!
If you haven’t received your postcard or assessment form by Feb 1st , please contact us ASAP via phone or email. We're here to help!
📞 Call us at 816-380-8400 with any questions!

Our office will be closed Thursday, January 1st, 2026 in celebration of New Year's Day! We will reopen Friday, January 2...
12/30/2025

Our office will be closed Thursday, January 1st, 2026 in celebration of New Year's Day! We will reopen Friday, January 2nd, 2026 at 8am. We hope everyone has a happy and safe new year!

The Cass County Assessor's Office will be closed Thursday, November 27th, 2025 and Friday, November 28th, 2025 in celebr...
11/25/2025

The Cass County Assessor's Office will be closed Thursday, November 27th, 2025 and Friday, November 28th, 2025 in celebration of the Thanksgiving holiday. We will reopen Monday, December, 1st, 2025 at 8:00am. Wishing everyone a safe and happy holiday!

Happy Halloween from the Cass County Assessor's Office! We hope you have a great day! 🎃
10/31/2025

Happy Halloween from the Cass County Assessor's Office! We hope you have a great day! 🎃

10/28/2025

Our office is experiencing technical difficulties regarding phone calls this afternoon. Please be patient with us as we work to have this issue resolved. We apologize and appreciate your understanding!

Our office will be closed on Monday, October 13th, 2025 in observance of Columbus Day! We will reopen the following day ...
10/08/2025

Our office will be closed on Monday, October 13th, 2025 in observance of Columbus Day! We will reopen the following day at 8:00am.

08/27/2025

UPDATE: Our office will be closed for the remainder of the day due to technical difficulties. We will reopen tomorrow at 8am!

08/26/2025

Due to electrical maintenance, our office will close at 3:45 on Wednesday, August 27, 2025. We’re sorry for any inconvenience this may cause.

08/21/2025

Our office is currently out in the field conducting updates and measurements on exempt properties. This work is being carried out as part of our ongoing efforts to ensure accurate records in the event of a natural disaster.

Send a message to learn more

08/07/2025

Our appraisers have been updating photographs in the field. Vehicles are visibly marked for easy recognition. Appraisers wear official Assessors clothing, badges, and identification cards.

Our office will be closed Friday, July 4th, 2025 in celebration of Independence Day. We will reopen on Monday, July 7th,...
07/03/2025

Our office will be closed Friday, July 4th, 2025 in celebration of Independence Day. We will reopen on Monday, July 7th, 2025 at 8:00am. Have a fun and safe holiday!

Address

2733 Cantrell Road
Harrisonville, MO
64701

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+18163808400

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