Real Estate

Real Estate (Property) Tax (13.759 mills)

Chester County assesses properties for real estate tax purposes, including the City’s, School District’s, and County’s tax. The last reassessment occurred in 1996-7.


Real Estate Tax Due Dates:

3/31/18: Deadline for 2% discount

5/31/18: Deadline for face amount

6/1/18 – 12/31/18:  10% penalty added to face amount

Statement of Assessment Valuations (as of 2016)



Type of Property Total Value # of Parcels
Agricultual 0 0
Commercial $61,783,220 265
Industrial $4,528,270 6
Residential $185,677,970 3,136
Vacant $2,604,680 195
Total Assessment/Parcel $254,594,140 3,602

City of Coatesville’s tax rate in 2017 is 13.759 mills. The Real Estate Tax is calculated by applying the millage rate times the assessed valuation.  One mill equates to one dollar ($1.00) per thousand ($1,000) of assessed valuation. For example, a property with an assessed value of $60,000 would pay 13.759 x 60 or $825.54

Real Estate Tax Rates in MIlls

Location Tax
City of Coatesville $13.759 (2018)
Chester County $4.369 (2018)
Coatesville Area School District $36.7537 (2018)


Keystone Collections collects the Real Estate Tax RET).  For Questions regarding the RET, contact the local Keystone Collections Office at: 866-539-1100 Monday through Friday during 8:00 am to 4:00 pm Real Estate Tax payments may be mailed, paid in person or paid online in one of the following ways.

Keystone Installed a Drop Box to help taxpayers make easy and timely payments on their tax bills.  The box is located in front of the Chester County Intermediate Unit Building at 455 Boot Road, Downingtown, PA 19335. Residents can use the box to remit local tax returns, payments and related documents.  All contents must be placed in an envelope with the taxpayers’ name. address and phone number written on the front.  Cash should never be placed in the box – payment must be made only by check or money order.

The new drop box provides and alternative for residents who are concerned about the new coronavirus DELTA Variant and are trying to avoid personal contact when paying their tax bill.  Resident can continue to pay taxes safely and securely online by visiting

Mail Payment to:

Keystone Collections Group
Real Estate Tax Payment
P.O. Box 505
Irwin, PA 15642

Pay Online  at:
select Pay/file tab at the top
of the screen and scroll to
real estate tax

Pay in Person at:

Keystone’s Chester County
Tax Office
780 Miles Road
West Chester, PA 19380

Below is the mailing address change form (and instructions for same) to change your tax billing mailing address for a property within the City limits. Please be reminded that the form must be completed and either faxed or mailed to both the City of Coatesville and Chester County. Both addresses are available on the forms.

[pdf] Change of Address Form

[pdf] Change of Address Instructions


Dear Municipal or School District official:

Keystone Collections Group is now offering a standardized Tax/Fee Certification form online. This form is designed to speed the process to certify that property taxes, utilities and storm water fees are paid in those areas where we are the current and/or delinquent collector. We ask that you link to the form on your website. We recommend embedding the link in the name of the document, which we do here:

Tax/Fee Certification Form


Here is the URL:


Those closing agents with pre-paid accounts may fax their requests directly to (412) 927-3638.

The form is also available on Keystone’s website. From the home page, click on the “Our Services” tab and then the Tax/Fee Certification link on the left side of the page.

If you have any questions or are in need of further assistance, please contact Client Services Notifications.