Pennsylvania Tax Deadlines: The Annual Calendar

Last updated May 18, 2026

·Independent Pennsylvania tax education

Pennsylvania's tax calendar mostly mirrors the federal one, but a few PA-specific deadlines (inheritance tax in particular) are easy to miss. This page covers the dates worth marking.

Key takeaways

Most PA tax deadlines match the federal calendar.
Quarterly estimated payments are due in April, June, September, and January.
PA inheritance tax has a unique 9-month deadline from the date of death.
Local EIT returns are usually due on the same April day as the PA-40.

Annual PA filings

PA-40 personal income tax: generally the April federal deadline.
Local EIT return: typically the same April deadline.
Use tax (line on PA-40): filed with the PA-40.
Property tax bills: set by your county, municipality, and school district (varies).

Quarterly estimated payments

PA estimated payments are typically due:

Q1 - mid-April.
Q2 - mid-June.
Q3 - mid-September.
Q4 - mid-January of the following year.

Exact dates can shift if a deadline falls on a weekend or holiday.

Inheritance tax (9-month deadline)

The PA inheritance tax return (REV-1500) is due within nine months of the date of death. The 5% early-payment discount is available when payment is made within three months. See our PA inheritance tax guide.

Business tax deadlines

PA sales tax: monthly, quarterly, or semi-annually based on assigned frequency.
Employer withholding: PA-W3 quarterly reconciliations and monthly/quarterly deposits.
Corporate net income tax (CNIT): annual filings tied to fiscal year end.
Local Business Privilege Tax: varies by municipality.

See our PA small business tax guide for details.

Local EIT deadlines

Most PA local EIT returns are due on the same April day as the PA-40. Some collectors have minor variations. Confirm with your collector (Berkheimer, Keystone Collections, Capital Tax, Berks EIT, LCTCB, Jordan Tax Service, York Adams Tax Bureau, etc.).

Extensions and weekends

When a deadline falls on a Saturday, Sunday, or federal/state holiday, it generally rolls forward to the next business day. An extension to file does not extend the time to pay. Estimated payment of any expected balance is still due by the original deadline.

Best practices

Add the April PA-40 deadline to your calendar every January.
Schedule reminders 30 days before each estimated payment date.
Mark the 9-month inheritance tax deadline as soon as someone dies.
Set business deadlines (sales tax, employer withholding) in monthly increments based on PA's assigned frequency.
Don't wait until the last week to file. PA's online portal can get busy.

Common mistakes

Assuming an extension to file is also an extension to pay.
Confusing the federal estimated tax dates with PA's, which usually but not always match.
Forgetting the local EIT return alongside the PA-40.
Missing the 9-month inheritance tax deadline because no one took ownership of the filing.
Counting weekend dates instead of rolling forward to the next business day.

Official Pennsylvania sources

Pennsylvania Department of Revenue
Statewide tax administration, forms, and bulletins.
PA Personal Income Tax
PA personal income tax rules, forms, and instructions.
PA Inheritance Tax
PA inheritance tax rates, forms, and filing instructions.
myPATH — PA Department of Revenue online portal
File and pay PA taxes online, manage business accounts, check refund status.

Frequently asked questions

When is the PA-40 due each year?

The PA personal income tax return is generally due on the same April day as the federal Form 1040. If that date falls on a weekend or federal holiday, the deadline rolls forward to the next business day.

When are PA quarterly estimated tax payments due?

Generally April, June, September, and the following January. Confirm exact dates with the PA Department of Revenue each year.

When are PA local EIT returns due?

Local EIT returns generally share the same April deadline as the PA-40, though some collectors have slightly different rules. Confirm with your collector.

What's the PA inheritance tax deadline?

The PA inheritance tax return is due within nine months of the date of death. Paying within three months earns a 5% discount.

Can I get an extension on the PA-40?

Yes. PA generally honors a federal extension that has been timely filed, but an extension to file is not an extension to pay. You still need to pay estimated tax by the original deadline to avoid interest.

Next read

Pennsylvania Tax Refund Guide

Once your filing deadlines are set, the next question for most filers is when their refund will arrive.

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Suggested improvements

Add an interactive calendar export (ICS) for PA deadlines.
Add weekend/holiday rollover examples for the current tax year.
Add expert review from a PA-licensed CPA.

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