New Jersey tax forms & filing.

Things to know about filing in New Jersey

• New Jersey residents working in New York pay NY nonresident tax on NY wages and claim a New Jersey credit for taxes paid to another state. This is the single most common NJ filing pattern and the source of frequent errors in DIY software.
• New Jersey assesses a surtax on taxable income above $1 million on top of the regular top marginal rate.
• New Jersey has reciprocity with Pennsylvania for wage income (the only NJ reciprocity). Residents working in PA pay only NJ tax on wages.
• New Jersey has its own inheritance tax that applies to non-lineal heirs (siblings, nieces, nephews, non-charitable beneficiaries) regardless of estate size.
• New Jersey allows a credit for taxes paid to certain reciprocal states. We model the comparison at intake when wages span states.

New Jersey resident working in New York — the most common filing pattern in the metro

The single most common NJ multi-state pattern: New Jersey residents commuting (or telecommuting) to New York City employers. You owe both New York nonresident tax (Form IT-203) on your New York-source wages AND New Jersey resident tax (Form NJ-1040) on all your income. The NJ return claims a credit for the New York tax paid — which usually but not always neutralizes the double taxation.

The credit calculation is the source of frequent errors. NJ caps the credit at the NJ tax that would have applied to the same NY-source income — so if NJ's effective rate on that income is lower than NY's, there's a residual NJ liability above the credit. Most NJ-NYC commuters end up with a NJ refund (over-withheld) and a NY balance due, but the math is sensitive to RSU vests, ISO exercises, and other big-income events.

Convenience-of-the-employer rule (New York's, not New Jersey's) sources telecommuting days to NY if the employer is NY-based and the work-from-home is by choice. This catches many post-2020 NJ residents who think their work-from-home days are NJ-source but NY claims them anyway.

New Jersey inheritance tax — the non-lineal heir trap

New Jersey is one of only six states with a state inheritance tax (the others: IA, KY, MD, NE, PA). NJ's inheritance tax applies to amounts received by non-Class-A heirs — primarily siblings, nieces, nephews, cousins, friends, and non-charitable beneficiaries — regardless of the estate's total size.

Class A beneficiaries (spouses, civil-union partners, children, grandchildren, parents, grandparents, stepchildren) are exempt from NJ inheritance tax. Class C (siblings) pay starting around 11% after a small exemption. Class D (most others) pay starting around 15% with virtually no exemption.

Practical effect: a New Jersey resident leaving $200,000 to a sister pays meaningful inheritance tax on most of that amount; the same bequest to a child is fully exempt. This drives a real planning conversation around bequest structure for NJ residents with significant non-lineal beneficiaries.

NJ also has no state estate tax (repealed in 2018) — so the inheritance tax is the only state-level transfer tax, and it's relationship-based rather than estate-size-based.

Where's my refund?

The New Jersey Division of Taxation runs the official refund-status tracker. You'll need your Social Security number, filing status, and exact refund amount (in some cases, the tax year and a return-amount input).

Check your New Jersey refund status →

Multi-state considerations

If you lived or worked in more than one state during the tax year, you typically file a part-year resident return in each state. If you live in one state and work in another, you usually file as a resident where you live and as a nonresident in the work state — claiming a credit on the resident return for taxes paid to the work state. Reciprocity agreements between some neighboring states change this default; we map this out at intake.

New Jersey-specific multi-state nuances are addressed in the quirks list above when they apply.

Get the current-year forms

State tax rates, brackets, and forms change every year. We point to the New Jersey Division of Taxation as the authoritative source for current-year information. Form numbers above are stable; rates, deduction amounts, and credit limits are not — always verify before relying on a specific dollar amount.

Open the New Jersey Division of Taxation website →