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How to file for a tax extension in New Jersey

The NJ Department of Treasury site to file taxes
The NJ Department of Treasury site to file taxes (Dan Alexander, Townsquare Media NJ)

The good news: Filing for a tax extension in New Jersey only takes a few clicks. The bad news: You’ve still got to pay at least 80 percent of your state tax obligation by tax day — Monday, April 18 in 2016.

The worst news: You should really pay for the whole thing.

According to the New Jersey Department of the Treasury, if you have been granted an extension to file your federal form your automatically get an extension to file your New Jersey form, provided that 80 percent of your tax liability to the state has been paid or withheld.

And although that 80 percent threshold makes you eligible for an extension on the paperwork, it doesn’t let you off the hook for making your tax payment on time. You still need to pay your full tax liability by the end of tax day — otherwise, you’ll be subject to penalties and interest.

If you haven’t paid 80 percent by 11:59 p.m. on Monday, you can’t get the extension at all.

Hoe to file for a federal tax extension

The Treasury Department website also has a link to apply for a 6 month extension to file forms NJ-1040, NJ-1040NR, and NJ-1080C, normally required by 11:59 p.m. on Monday night. A 5 month extension can be granted for a NJ-1041. 80 percent of the tax liability must be paid or previously withheld in that case as well.

An extension form can also be downloaded from the site. A mailed form has to be postmarked by 11:59 p.m. on Monday.

There are a handful of US Post Offices open late in New Jersey.

  • Bellmawr: 421 Benigno Blvd open until 10 p.m.
  • Trenton Main Window Office: 680 Route130 in Hamilton open until 10 p.m.

Post offices in Basking Ridge, Bayonne, Colonia, Edgewater, Lake Hiawatha, Linden, Little Falls, Main Avenue Station in Clifton, Maplewood, Metuchen, Monroe, Montclair, Newark Main Post Office, Parlin, Somerville, Tenafly, Warren (Somerset County), West Orange, Woodbridge, and Woodcliff Station in North Bergen will all be open until 7 p.m.

The James A. Farley Main Post Office at 421 Eight Avenue in Manhattan, across the street from Penn Station, is open till midnight.

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