Pennsylvania Partnership Tax Deadlines 2026
Complete guide to Partnership filing dates, extensions, estimated payment schedules, and required forms in Pennsylvania for the 2026 tax year. Pennsylvania imposes a state income tax, so Partnership entities must file both federal and state returns.
Pennsylvania Partnership filing deadline
Calendar-year due date follows federal timing for pass-through entities.
Due: Mar 16, 2026
Extension: Sep 15, 2026
Form: State partnership return
Estimated payments
No state estimated payment schedule listed.
Due: N/A
Pennsylvania Partnership Tax Calendar at a Glance
| Event | Date |
|---|---|
| Filing deadline | Mar 16, 2026 |
| Extension deadline | Sep 15, 2026 |
FAQ
When is the Partnership tax filing deadline in Pennsylvania for 2026?
The Pennsylvania Partnership tax return is due Mar 16, 2026 for the 2026 tax year. An extension is available until Sep 15, 2026.
Does Pennsylvania require Partnership estimated tax payments?
Estimated payments are not typically required at the entity level for Partnership in Pennsylvania, but confirm with Pennsylvania Department of Revenue.
What form do I file for a Partnership in Pennsylvania?
Partnership entities in Pennsylvania file using Form State partnership return. You can download the form from Pennsylvania Department of Revenue at https://www.revenue.pa.gov.
Can I get an extension for my Pennsylvania Partnership tax return?
Yes. Pennsylvania allows an extension for Partnership returns until Sep 15, 2026. Note that an extension gives you more time to file, not more time to pay — any tax owed is still due by the original deadline of Mar 16, 2026.
What are the penalties for filing late in Pennsylvania?
Pennsylvania typically charges a failure-to-file penalty (usually 5% of unpaid tax per month, up to 25%) and a failure-to-pay penalty (usually 0.5-1% per month). Interest also accrues on unpaid balances. Filing for an extension by the original deadline avoids the failure-to-file penalty but not the failure-to-pay penalty.
Where can I file Pennsylvania Partnership taxes?
File through Pennsylvania Department of Revenue. Visit https://www.revenue.pa.gov for e-filing options, downloadable forms, and payment portals.
Pennsylvania Estimated Tax Payments
View the full quarterly estimated payment schedule for Pennsylvania, including all entity types and payment methods.
View Pennsylvania estimated payments →