How to File a New Jersey Tax Amendment

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What Is the New Jersey Definition of a Tax Amendment?

If there were changes in your previously filed tax return then you must file a tax amendment. If the IRS made changes to your federal income tax return, you must file a tax amendment from notifying the state of New Jersey within 90 days of receiving final notice from the IRS.

If you are expecting a refund, then you must file within a period of 3 years since the filing deadline of the original tax return.

How to file a Tax Amendment in New Jersey 

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

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

If you are a resident of the state of New Jersey, fill out form NJ-1040X  for the corresponding year.

If you are a nonresident or a part-year resident of the state of New Jersey, fill out form NJ-1040NR for the corresponding year, making sure to write the word "AMENDED" in bold letters on the top right corner of the tax return form.

A resident is defined as someone who is domiciled, maintaining a permanent home, in the state of New Jersey and spends at least 183 days in the state. A nonresident is someone who doesn't meet those requirements.

If a part-year resident obtains income from the state of New Jersey during the timeframe of being a nonresident, then both forms may have to be filed.

New Jersey Tax Amendment

Resident Forms

Form (Tax Year)Description
Form NJ-1040X (2014) 2014 Form available soon
Form NJ-1040X (2013) Amended Income Tax Return
Form NJ-1040X (2012) Amended Income Tax Return
Form NJ-1040X (2011) Amended Income Tax Return
Form NJ-1040X (2010) Amended Income Tax Return
Form NJ-1040X (2009) Amended Income Tax Return
Form NJ-1040X (2008) Amended Income Tax Return

Nonresident and Part-Year Resident Forms 

Form (Tax Year)Description
Form NJ-1040NR (2014) 2014 Form available soon
Form NJ-1040NR (2013) Nonresident Income Tax Return
Form NJ-1040NR (2012) Nonresident Income Tax Return
Form NJ-1040NR (2011) Nonresident Income Tax Return
Form NJ-1040NR (2010) Nonresident Income Tax Return
Form NJ-1040NR (2009) Nonresident Income Tax Return
Form NJ-1040NR (2008) Nonresident Income Tax Return

Penalties, Interest, and Fees

The New Jersey Division of Taxation may impose several penalties on taxpayers for violations. They include late filing penalty as well as a late payment penalty. A late filing penalty is assessed when the taxpayer fails to file by the specified deadline. The penalty amounts to 5% of the total tax due per month, but will not exceed 25% of the total tax due. A $100 fee may be charged as well for each month past the due date that the return hasn't bee filed.

A late payment penalty is imposed when the taxpayer fails to pay the tax by the due date, and amounts to 5% of the tax due.

Interest is also collected on overdue tax payments, and amounts to 3% greater than the federally established prime interest rate.

Where to mail your tax amendment - New Jersey Mailing Address:

New Jersey Department of Revenue

If payment is attached, mail to:

State of New Jersey
Division of Taxation
Revenue Processing Center – Payments
P.O. Box 111
Trenton NJ 08645-0111

If no payment is attached, mail to:

State of New Jersey
Division of Taxation
Revenue Processing Center – Refunds
P.O. Box 555
Trenton NJ 08647-0555

Learn how to file an IRS tax amendment.

More information on NJ state taxes.

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