Tax Office

The tax office hours of operation:

Wednesdays from 5:00pm – 8:00pm and the second Saturday of each month from 9:00am – 1:00pm.

As always…payments can also be mailed in or dropped off in our payment box at the entrance to the Municipal Building. If you require a receipt for payment, please include a self addressed stamped envelope.

Eileen O’Malley
Tax Collector
412-885-9200 ext. 107

Delinquent Taxes – Borough – Jordan Tax Service – 724-731-2300 or 412-835-5243
K O School – MBM Collections – 412-242-9615

You can now pay your Castle Shannon Borough property taxes online via MuniciPAY using:
Visa, MasterCard, Discover, American Express, or Electronic Check Payments
(A per transaction convenience fee will be charged by MuniciPAY for this service.)

Click here to pay online

The Borough millage rate for 2024 is 12.158.

Keystone Oaks millage rate for 2023 is 20.48560*

*school millage rates are on a fiscal year and are set at the end of June

County millage rate for 2024 is 4.73

Castle Shannon Borough / Keystone Oaks School District
3310 McRoberts Road, Castle Shannon, PA 15234

Important Dates for Real Estate Taxes:
2% Discount Until April 15
At Face Until June 15
10% Penalty After June 15

Important Dates for Keystone Oaks School District Taxes:
2% Discount If Paid By August 31
Face Tax If Paid By October 31
10% Penalty If Paid After October 31

1% Earned Income Tax Rate
Collector: Jordan Tax
102 Rahway Road McMurray, PA 15317
For Information on EMST and Earned Income Tax – Call 724-731-2300 or 412-835-5243

Permanent Residences and Qualifying Farms in Allegheny County are eligible for the Homestead/Farmstead Exclusion. Vacant Land or Land without your permanent home does not qualify. Age, disability or income has no bearing on approval.

Earned Income Tax (EIT) & PSD Codes

PSD Codes (political subdivision codes) are six-digit numbers that uniquely identify each municipality—township, borough, city—in Pennsylvania. PSD Codes play an integral role in assisting employers and tax collectors to remit and distribute the correct amount of local Earned Income Tax to the correct taxing jurisdictions.

Employees are required to complete a Residency Certification Form upon hire (and with any subsequent change in address) in order to confirm the PSD Codes and EIT Rates being used by the employer for the employees’ local taxing purposes. Employers maintain this form in the employees’ personnel files. When you move into our Borough, please be sure to change your PSD code with your employer. The Castle Shannon Borough PSD code is 730901 (Keystone Oaks School District) or 730202 (Bethel Park School District).

Senior Citizen Property Tax Relief Program Act 77


If you are 60 years old and have income of $30,000 or less (reporting only half of your Social Security) you are eligible for Act 77 tax relief which represents 30% off County tax and 25% off Borough tax. If you have already signed up, it is listed on your tax bill.

Applications are available in the Tax Office.

All seniors entitled to ACT 77 Discount, please be aware that your assessment has been reduced by 30% and taxes calculated on the lower values.

In order to qualify, your total household income must not exceed $30,000 while only counting half of your Social Security or Railroad Retirement payments.

Any residents with questions concerning their taxes can call Ms. O’Malley at 412-885-9200 extension 107.


Available facilities at :