What New Jersey Income Tax Is
New Jersey income tax is a state tax on wages, self-employment income, investment earnings, and other money you receive. Unlike federal income tax, which goes to the U.S. government, New Jersey income tax goes to the state. Most people who work in New Jersey or live there year-round must file a state tax return each year, even if they don't owe federal tax.
New Jersey has a progressive tax system, meaning the tax rate increases as your income increases. The state does not have a flat tax rate—someone earning $30,000 pays a different percentage than someone earning $100,000. Tax rates range from 1.4% on the lowest incomes to 10.75% on the highest, with several brackets in between.
Key Takeaways
- New Jersey income tax rates range from 1.4% to 10.75% depending on your income level, with higher earners paying a larger percentage.
- You must file a New Jersey tax return if you live in the state, work there, or earn income there, even if you owe no tax.
- The state offers deductions and credits that can lower your tax bill, including the Earned Income Tax Credit and property tax deductions.
- New Jersey taxes wages, self-employment income, rental income, investment gains, and retirement distributions differently depending on the type.
- Tax returns are due on April 15 each year, the same important date as federal returns, and you can file online or by mail.
Who Has to File a New Jersey Tax Return
You must file a New Jersey return if you lived in the state for any part of the tax year and earned income, or if you worked in New Jersey even if you lived elsewhere. The income threshold—the amount you must earn before filing becomes required—depends on your age and filing status. For most people under 65, you file if your income exceeds roughly $20,000 to $25,000, though the exact number changes each year.
Even if your income falls below the filing threshold, you may want to file anyway. Many people get refunds because taxes were withheld from their paychecks or because they may have access to for credits like the Earned Income Tax Credit. Filing is free through the state's online system or through a tax preparer.
New Jersey Tax Brackets and Rates
New Jersey divides income into tax brackets. Your income falls into multiple brackets as it increases, and you pay the rate for each bracket only on the income within that bracket. For the 2024 tax year, the brackets for single filers are roughly:
| Income Range | Tax Rate |
|---|---|
| $0 to $20,000 | 1.4% |
| $20,001 to $35,000 | 1.75% |
| $35,001 to $40,000 | 3.5% |
| $40,001 to $75,000 | 5.525% |
| $75,001 to $500,000 | 6.37% |
| Over $500,000 | 10.75% |
Married couples filing jointly have different brackets with higher income thresholds. The state adjusts these brackets each year for inflation, so the exact numbers shift annually. Check the New Jersey Division of Taxation website for the current year's brackets before calculating your tax.
Types of Income New Jersey Taxes
New Jersey taxes most income you receive, but the treatment varies by type. Wages and salaries are taxed at your full bracket rate. Self-employment income—money from running your own business—is also taxed, and you owe both income tax and self-employment tax (Social Security and Medicare). Rental income from property you own is taxed, though you can deduct expenses like mortgage interest, property tax, and repairs.
Investment income receives different treatment depending on the type. Long-term capital gains (profits from selling stocks or property you held over a year) are taxed at lower rates than ordinary income. Dividends and interest are taxed as ordinary income. Retirement distributions from IRAs and 401(k)s are taxed as ordinary income when you withdraw them, but some distributions may be excluded or deferred.
Some income is not taxed by New Jersey. Social Security benefits are excluded entirely. Certain pension income may be excluded if you meet age and income requirements. Municipal bond interest is not taxed by the state.
Deductions and Credits That Lower Your Tax
New Jersey offers deductions that reduce the income you pay tax on. The standard deduction—a set amount you can subtract from your income—is roughly $12,500 for single filers and $25,000 for married couples filing jointly, though these amounts change yearly. If you own a home, you can deduct property taxes paid, up to a limit. You can also deduct mortgage interest and charitable donations if you itemize deductions instead of taking the standard deduction.
Tax credits are different from deductions—they reduce your tax bill dollar-for-dollar rather than reducing your income. The Earned Income Tax Credit is available to lower-income workers and can result in a refund even if you owe no tax. The Child and Dependent Care Credit helps if you pay for childcare. The Property Tax Reimbursement program provides a check to renters and homeowners with low to moderate income.
How to File Your New Jersey Tax Return
You can file online through the New Jersey Division of Taxation's website using their free e-file system, or you can read a paper form and mail it. The important date is April 15 each year, the same as federal returns. If you need more time, you can request an extension, which gives you until October 15 to file, though any tax you owe is still due by April 15.
To file, you will need your Social Security number, income documents (W-2 forms from employers, 1099 forms for self-employment or investment income), and records of deductions and credits you plan to claim. If you use a tax preparer or software, they will guide you through entering this information. Filing online is faster and reduces errors—the state processes e-filed returns in weeks rather than months.
What Happens If You Don't File or Owe Tax
If you owe New Jersey income tax and don't pay, the state can assess penalties and interest on the unpaid amount. Penalties start at 5% of the unpaid tax and increase if you don't respond to notices. Interest accrues daily at a rate set by the state, currently around 4% per year. The Division of Taxation can also place a lien on your property or garnish your wages to collect.
If you don't file a return when required, you face similar penalties even if you don't owe tax. Filing late can also delay any refund you're due. If you missed filing in past years, you can still file those returns—the state generally looks back six years for refunds, though penalties may explore to years where you owed tax.
Frequently Asked Questions
Do I have to pay New Jersey income tax if I work in New Jersey but live in another state?
Yes, you owe New Jersey income tax on income earned in the state, even if you live elsewhere. However, you may also owe tax to your home state. Most states have reciprocal agreements to prevent double taxation, so you typically get a credit on your home state return for taxes paid to New Jersey. Check your home state's rules.
Can I deduct federal income tax from my New Jersey return?
No, New Jersey does not allow you to deduct federal income tax paid. You can deduct state and local income taxes, sales taxes, and property taxes on your federal return, but not the other way around.
What if I owe both federal and New Jersey tax but can only pay one?
Pay federal tax first if you must choose. The federal government has more enforcement power and can seize assets more easily. Contact the New Jersey Division of Taxation to discuss a payment plan for state tax owed—they may offer installment agreements that let you pay over time.
Is New Jersey income tax withheld automatically from my paycheck?
Yes, if you work for an employer in New Jersey, they withhold state income tax from your wages based on a W-4 form you complete. The amount withheld depends on your income and the number of dependents you claim. If too much is withheld, you get a refund when you file; if too little is withheld, you owe when you file.
Do I need to file a New Jersey return if I only have investment income?
Only if your investment income exceeds the filing threshold for your age and status. Investment income counts toward that threshold the same way wages do. If you have no other income and your investment earnings are below the threshold, you don't have to file, though you may want to if taxes were withheld.