Delaware County Reassessment/Reassessment Presentation

In March 2017, Delaware County was ordered by the Court to conduct a countywide property tax reassessment , effective for the 2021 tax year. Delaware County Council contracted with Tyler Technologies, Inc. in 2017 to provide real property appraisal services for the County's 2020 general reassessment.

The goal is to bring a fairer property tax to taxpayers through the reassessment of all property.


New, tentative value notices will be mailed out in Spring 2020.

Your primary question should be "Is this the price for which I could sell my property?" Your assessment should represent 100% of July 1, 2019 market value.

Do not apply the current tax rate to your new assessment, the result will be inaccurate. The new millage rate will be determined by your Municipality, County and School District for the 2021 tax year.

If you still have unanswered questions or disagree with your tentative property value, you may opt to schedule an informal review of your property with a representative from Tyler Technologies, the company contracted to perform the countywide assessment. No action is required if you agree with your tentative value.

Property owners who only have one property to discuss, may schedule an appointment online or call. You will need the Parcel Number & Zone (printed in the upper right corner of your letter.)

To schedule online visit:  (

*Property owners who wish to discuss multiple properties must call to request an appointment.

* The phone center and online scheduling will open 8:30 am on Feb. 17, 2020.

** Property owners cannot schedule an appointment until they receive a letter with the new tentative property value.

You can schedule an appointment by calling (888) 773-7056 between 8:30 am and 4:30 pm, Monday through Friday. The call center is for appointment scheduling only. Phone representatives cannot discuss any details surrounding your new value during your call.

Informal hearing requests must be made within 10 business days of the date on this notice. All appointment scheduling will close at 4:30 pm on the 10th business day.

To read more about Delaware County's Reassessment and to view a video about the Reassessment, click here.


Revised 2/12/20