Option 1: Make online payments for your New Jersey income taxes through the New Jersey Division of Taxation.
Option 2: If you owe NJ income taxes, you must file a NJ tax return or extension by the tax deadline to avoid late filing penalties. While you can file an IRS extension online, you must submit a NJ extension by mail. The extension only delays late filing penalties until October.
Note: Unless you pay all your Taxes or eFile your tax return by the October deadline, the late filing penalties will start again after that deadline.
Option 3: To file a NJ tax extension, complete Form NJ-630, enclose a check or money order, and mail it to the address on the form. Remember, even with an extension, you must still file your NJ tax return by October.