New Jersey - State Tax Extension

Individuals and fiduciaries  •  Not automatic
Form NJ-6306 months (5.5 fiduciary)80% payment required
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An extension to file is not an extension to pay tax.

New Jersey does not treat a federal extension as sufficient - Form NJ-630 must be filed by the original due date, and the extension is void unless at least 80% of the tax liability has already been paid.

Get the form: Download Form NJ-630 (PDF, nj.gov)  •  Extension information (nj.gov)
ItemDetail
FormNJ-630, Application for Extension of Time to File
AutomaticNo - must be filed by the original due date
Length6 months for NJ-1040/NJ-1040NR/NJ-1080C; 5.5 months for NJ-1041 fiduciary returns
Payment thresholdAt least 80% of total tax liability must be paid by the original due date (withholding, estimated payments, or payment with NJ-630) or the extension is void
AuthorityN.J.A.C. 18:35-6.1
Falling short of the 80% threshold voids the extension entirely - New Jersey treats the return as if no extension was ever granted, exposing the full period to late-filing penalties.
Related
All StatesBack to the states hub New YorkSimilarly form-based, own state extension required PTET ExtensionPass-through entity elective tax extension rules Master MatrixEvery jurisdiction, one table
Authority: N.J.A.C. 18:35-6.1 (extension of time to file New Jersey gross income tax return). Source: law.cornell.edu/regulations/new-jersey/N-J-A-C-18-35-6-1; nj.gov/treasury/taxation/njit27.shtml.
This page is for informational purposes only and is not legal, tax, or accounting advice. No professional relationship is created by using this site. Tax law and guidance change; verify against current primary authority before acting. Full disclaimer.
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