New Jersey paycheck quick facts
| NJ state income tax | 1.4% – 10.75% (8 brackets, progressive) |
|---|---|
| NJ Unemployment Insurance (employee) | ~0.4675% on first $44,000 (2026 est.) |
| NJ Family Leave Insurance (FLI) | 0.06% on first $170,000 (2026 est.) |
| NJ Temporary Disability (TDI, employee) | 0% (suspended since 2023) |
| NJ recognizes pre-tax | Section 125 medical, FSA |
| NJ does NOT recognize pre-tax | 401(k), 403(b), HSA |
| Local income tax | 0% (no NJ city imposes one) |
| Federal income tax | 10% – 37% (2026 brackets) |
| FICA | 6.2% SS (cap $183,600) + 1.45% Medicare |
How your New Jersey paycheck works
New Jersey has one of the most quirky state tax codes in the country for paycheck purposes. The 8-bracket progressive structure is relatively standard, but NJ\'s treatment of pre-tax deductions is unusual: 401(k) and HSA contributions are NOT pre-tax for NJ, which is the opposite of how almost every other state handles them. Only Section 125 cafeteria plan items (health premiums, FSA) are pre-tax for NJ.
Beyond income tax, NJ collects three small payroll taxes from employees: Unemployment Insurance (~0.4675%, capped at ~$44k of wages), Family Leave Insurance (0.06%, capped at ~$170k), and historically TDI (currently suspended at 0%). The combined effect on a typical paycheck is roughly 0.5% on top of state income tax.
FICA: Social Security and Medicare
Every W-2 employee in the US pays FICA, regardless of state. It has two parts:
- Social Security — 6.2% of wages up to the annual wage base ($183,600 for 2026). Earnings above the cap are not taxed for Social Security.
- Medicare — 1.45% of all wages with no cap. If you earn above $200,000 (single) or $250,000 (married filing jointly), an additional 0.9% Additional Medicare Tax applies to the portion above that threshold.
Your employer pays a matching 6.2% + 1.45% (the Additional Medicare is employee-only). Self-employed workers pay both halves — known as SECA: 12.4% Social Security + 2.9% Medicare.
Federal income tax brackets (2026)
The IRS uses a progressive bracket system. The first dollars you earn are taxed at 10%, the next at 12%, and so on up to 37% for high earners. Your marginal rate is the bracket your last dollar falls into; your effective rate is your total tax divided by gross — almost always lower than your marginal rate.
| Single / MFS | MFJ | Rate |
|---|---|---|
| $0 – $12,150 | $0 – $24,300 | 10% |
| $12,150 – $49,450 | $24,300 – $98,900 | 12% |
| $49,450 – $105,700 | $98,900 – $211,400 | 22% |
| $105,700 – $201,775 | $211,400 – $403,550 | 24% |
| $201,775 – $256,225 | $403,550 – $512,450 | 32% |
| $256,225 – $640,600 | $512,450 – $768,700 | 35% |
| $640,600+ | $768,700+ | 37% |
The 2026 standard deduction reduces taxable income before brackets apply: $15,750 single, $31,500 married filing jointly, $23,625 head of household.
Pre-tax deductions that reduce your taxable income
The biggest lever you control on your paycheck is your pre-tax contributions. These come out of your gross pay before federal income tax is calculated, so every dollar contributed saves you your marginal rate's worth of tax.
- Traditional 401(k) — up to $24,500 for 2026 ($31,000 if 50+). Reduces federal taxable income but not FICA wages.
- HSA (Health Savings Account) — up to $4,400 single / $8,750 family in 2026, only available with a high-deductible health plan. Triple-tax-advantaged: pre-tax going in, tax-free growth, tax-free withdrawals for medical expenses.
- FSA (Flexible Spending Account) — up to $3,400 for 2026. Use-it-or-lose-it (with limited rollover). Pre-tax for both federal income tax and FICA.
- Employer health, dental, and vision premiums — typically pre-tax via a Section 125 cafeteria plan.
How to use this calculator
- Pick Salary or Hourly.
- Enter your annual salary (or wage + hours per period).
- Choose your pay frequency — most US employers pay bi-weekly (26 paychecks/year) or semi-monthly (24 paychecks/year).
- Pick your filing status. It controls the brackets and standard deduction.
- If you have qualifying children under 17, enter the count to claim the Child Tax Credit (up to $2,000 per child).
- Expand Pre-tax deductions if you contribute to 401(k), HSA, FSA, or pay health premiums pre-tax.
The result updates instantly. The "Take-home per paycheck" figure is what should hit your bank account; the breakdown table shows exactly where the rest goes.
Sources
The federal tax constants used here come directly from the 2026 authoritative sources:
- IRS Revenue Procedure 2025-32 — 2026 inflation-adjusted brackets, standard deduction, Child Tax Credit amounts.
- SSA Cost-of-Living Adjustment announcement — 2026 Social Security wage base ($184,500).
- IRS Publication 15-T — Federal Income Tax Withholding Methods, including Additional Medicare Tax thresholds.
- IRS Form W-4 — 2020+ five-step withholding worksheet referenced for filing-status and dependent inputs.
Calculator is provided for estimation only and does not constitute tax advice. For tax filing, consult the IRS forms above or a licensed tax professional.
The NJ 401(k) quirk in detail
Because NJ taxes 401(k) deferrals when contributed (not when withdrawn), the basis of your traditional 401(k) is already NJ-tax-paid. When you eventually withdraw, NJ only taxes the earnings, not the contributions — you\'ll need to track your "NJ basis" separately from your federal basis. Most retirement software handles this automatically.
For high earners, this changes the Roth vs. traditional 401(k) math. Since NJ taxes the contribution either way, the difference is only on the federal side. Many NJ professionals choose Roth because the federal-tax-free withdrawal applies, AND there\'s no double-taxation risk at the NJ level.
How to increase your New Jersey take-home pay
- Max your Section-125 / FSA. These are the most meaningful pre-tax accounts for NJ — they reduce federal income tax, NJ income tax, and FICA. Especially valuable in NJ where 401(k) and HSA don\'t help with state tax.
- Don\'t skip 401(k) just because NJ doesn\'t recognize it. The federal savings (often 22–32% bracket) still far exceed the NJ tax cost (1.4–10.75%) on the contribution for most earners.
- Reconsider HSA priority if you live in NJ. The federal triple-tax advantage is still good, but at the NJ level it\'s actually worse than a regular taxable account because the earnings are NJ-taxable too. For state-pretax wins, lean on FSA + medical premiums.
- Watch property tax deductions. NJ\'s property taxes are the highest in the country; you can deduct up to $15,000 of property tax on the NJ-1040 (single/MFJ).
- Track your residency carefully if you split time between NJ and NY. NJ taxes worldwide income for residents; a CPA can help with the credit-for-tax-paid-to-other-states.
Compare NJ against neighboring and competing states: New York, Pennsylvania, Massachusetts, Florida.