Prepayments available March 1 – Sept. 30.
Total paid in 2019: $804,448.


When you prepay, you send us the same exact money you will be responsible to pay anyway, but it gets into the hands of your schools, ambulance and fire districts, hospitals, and public service providers up to 60 days earlier and you get to relax at the holidays and spend your hard earned money on gifts for friends and family.


By Check

Always include the parcel number you wish to pay on your check.

Online Bill Pay

Make sure your online bill pay provider includes the parcel number as your account number.


You may pay any amount (we prefer payments over $20), any time between March 1 and September 30 each year.

Prepayments will be held in a separate account until bills are generated each year. They will be applied before bills are mailed, and your mailed or online bill will reflect your outstanding balance. Overpayments will be refunded in November of each year. Prepayments cannot be adjusted, refunded, or applied to taxes at any time between March 1 and September 30 each year. They will be applied to the annual tax bill in late October, and refunds and adjustments will be made one time, after the annual tax bills have been generated. No prepayments will be accepted after September 30 or before March 1 each year. Taxpayers do not earn interest on prepaid money.

We cannot help you estimate the amount of taxes you will owe. Please use previous tax bills to estimate the amount you should prepay–taking into account any changes in the property you owned, or any changes in the levy rates that apply to your address. You may use our simple estimator tool below, but please note that these are approximate calculations.

  • The PERSONAL PROPERTY ESTIMATOR can only be used to estimate tax bills for personal vehicles, motorcycles, boats, and trailers. Do NOT use this tool to estimate tax bills for business equipment, animals, crops, or any type of land or real estate.
  • The REAL ESTATE ESTIMATOR can only be used to estimate tax bills for residential property that was occupied on January 1.  Do NOT use this tool to estimate tax bills for vacant land, commercial property, agricultural property, property that became occupied during the year, or mixed use property.

This tool is designed to help you estimate your tax bill in Clay County, Missouri only. Assessment values and tax rates are calculated according to state law, and nothing entered into this form can bind Clay County to a particular value or rate.  This is a personal tool, with limited purpose and value.

Please also keep in mind that interest, penalty, and fees are charged when property is either assessed or paid late.  This tool only provides an estimate of the base taxes.

Click here to see how to manually calculate these numbers.




  1. Prepayments must be made by written instrument (check, money order, etc.—no credit cards or cash). You may use your bank’s online bill payment system.
  2. All payments received at any time from any taxpayer will be applied to the oldest taxes first. You may not prepay a future year if you owe taxes from a prior year.
  3. A valid Clay County parcel number must be written on all prepayments.  Prepayments sent without this information will be returned, uncashed.
  4. If you use your bank’s online bill pay to send us a pre-payment, please have your bank write “PREPAYMENT” in the memo line, and make sure your parcel number appears on the check. You may only prepay one parcel per check. Any online bill payments received in this office with uncertain information will be returned, uncashed.
  5. Again, you may only prepay one parcel per check. Payments sent to us with instructions to apply a single check to more than one parcel will be returned, uncashed.
  6. You must be assessed each year before you prepay! If you send us money, but do not have an assessment on file with the assessor’s office, we will return your money without applying it to a tax bill. We will not be able to verify whether you were assessed until October or November, so all refunds will be issued at that time.
  7. Money paid to the Collector’s office in anticipation of a future tax bill cannot be returned or refunded under any circumstances until the annual bill file is created (late October or early November). At that time, all money that is not applied to a tax bill will be refunded.
  8. Taxpayers paying money in anticipation of a future tax bill will not earn interest under any circumstances. All interest earned by the prepayment account will offset fees to operate the account or will be disbursed to the taxing jurisdictions.
  9. Prepayments cannot be refunded in most cases. If you are eligible for a refund, a check will be sent to the name and address on the check, and will take at least two weeks to process.
  10. If a prepayment check is returned by the bank for any reason, we will not accept prepayments from that person or on that parcel for 3 years from the date the check is returned.
  11. We will mail you a receipt for every payment, but these receipts cannot be viewed online or used at the DMV.
  12. If prepayments are returned or refunded to you for any reason, you still remain fully responsible for your taxes, and you will be responsible for interest and penalties that accrue if taxes are not paid on or before December 31 in the year they are due.