How to File a Pennsylvania Tax Amendment

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What Is the Pennsylvania Definition of a Tax Amendment?

If the taxpayer needs to correct his or her income tax return, then a tax amendment form should be filed. 

The amended tax return should be filed within 3 years of the filing deadline for the original tax return, or 2 years from the time when tax was paid, whichever is later. 

What Is the Pennsylvania Definition of a Tax Amendment?

As a Pennsylvania taxpayer you must file or efile a tax amendment if you reported incorrect income on your original tax return or claimed too many or to view allowable deductions and/or tax credits etc. You have up to 3 years from the date of the original tax return filing to file your Pennsylvania tax amendment. If you reported too little income or too many deductions, or tax credits weren't claimed properly, then you have up to 30 days from the date of the original filing to file an amendment correcting those mistakes. After the 30 days pass, you can still file an amendment, but there are penalties that kick in.

In the case of incorrectly reported income, whether under- or over-reported, you should also file a federal tax amendment form to correct the errors in your federal tax return.

How to file a tax amendment in the State of Pennsylvania Tax Amendment Forms

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You can also download, fill out, and mail your tax amendment.

Pennsylvania State Tax Amendment Forms (download, print out, fill out, and mail)

To file an amendment, the taxpayer must fill out Form PA-40 for the corresponding tax year, clearly printing the words "AMENDED RETURN" at the top of the form. He or she must also fill out Schedule PA-40X when filing an amendment to a return from 2011 or any year after that.

Income Tax Forms 

Form (Tax Year)Description
Form PA-40 (2014) 2014 Form available soon
Form PA-40 (2013) Pennsylvania Individual Income Tax Return Form
Form PA-40 (2012) Pennsylvania Individual Income Tax Return Form 
Form PA-40 (2011) Pennsylvania Individual Income Tax Return Form 
Form PA-40 (2010) Pennsylvania Individual Income Tax Return Form 
Form PA-40 (2009) Pennsylvania Individual Income Tax Return Form 
Form PA-40 (2008) Pennsylvania Individual Income Tax Return Form 

Amended Income Tax Forms 

Form (Tax Year)Description
Form PA-40X (2014) 2014 Form available soon
Form PA-40X (2013) Pennsylvania Amended Individual Income Tax Return Form
Form PA-40X (2012) Pennsylvania Amended Individual Income Tax Return Form 
Form PA-40X (2011) Pennsylvania Amended Individual Income Tax Return Form 
Form PA-40X (2010) Pennsylvania Amended Individual Income Tax Return Form 
Form PA-40X (2009) Pennsylvania Amended Individual Income Tax Return Form 
Form PA-40X (2008) Pennsylvania Amended Individual Income Tax Return Form

Penalties, Interest, and Fees

If a taxpayer files an amendment for under-reported income past the 30 day mark, there is a 5% late penalty. There is interest that is accrued every day, and it's computed using this formula:

Interest = Unpaid Tax x Number of Days x Applicable Daily Interest Rate

Taxes that were due on December 31, 1981 or before will have old interest rates that are specified in each of the individual tax laws. 

Where to mail your tax amendment - Pennsylvania Mailing Address:

Pennsylvania Department of Revenue

If a tax payment in form of a check or money order is attached to the form being mailed, then mail to:

PA Dept Of Revenue
Payment Enclosed
1 Revenue Place
Harrisburg PA 17129-0001

If no payment is attached and no refund is owed, then mail to:

PA Dept Of Revenue
No Payment Or No Refund
2 Revenue Place
Harrisburg PA 17129-0002

If you are owed a refund  or credit, then mail to:

PA Dept Of Revenue
Refund Or Credit Requested
3 Revenue Place
Harrisburg PA 17129-0003

Learn how to amend your IRS taxes.

More information on PA state taxes.

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