NOTE: Whenever the due date falls on a weekend or a holiday, the due date is always the following business day.
Individual Filing Due Dates:
| Filing: | Due Date: |
| Annual Earned Income Tax Return | April 15 |
| Quarterly Estimated Tax Payment | |
| First Quarter | April 30 |
| Second Quarter | July 30 |
| Third Quarter | October 30 |
| Fourth Quarter | January 30 |
| Note: On years that April 15 falls on a weekend, the due date will be the Tuesday following the 15th because of the Emancipation Day holiday in Washington D.C. which falls on Monday. |
Employer Filing Due Dates:
| Filing: | Due Date: |
| Annual Earned Income Tax Reconciliation | February 28 |
| Quarterly Earned Income Tax Return and Payment | |
| First Quarter | April 30 |
| Second Quarter | July 31 |
| Third Quarter | October 31 |
| Fourth Quarter | January 31 |
| Local Services Tax Return and Payment | |
| First Quarter | April 30 |
| Second Quarter | July 31 |
| Third Quarter | October 31 |
| Fourth Quarter | January 31 |
| Mercantile/Business Privilege Tax Return | |
| Conewago Twp. (York Co.), Dover Twp., Hanover Borough, North York Boro, Springettsbury Twp., West Manchester Twp., York City, York Twp. | April 15 |
| Spring Garden Township | May 15 |