On Line 4 of the NJ-W4, claim one allowance for yourself, one for a spouse or civil union partner if you’re filing jointly and they aren’t claiming the same allowance elsewhere, one for each qualifying dependent, and one more for each of the following that applies: you are 65 or older, your spouse is 65 or older, you are blind or disabled, your spouse is blind or disabled, or your filing status is head of household or qualifying surviving spouse. Add them up and put the total on Line 4. Each allowance reduces the wages your employer uses to calculate New Jersey Gross Income Tax withholding by $1,000 per year, or roughly $19.20 per week.1NJ.gov. NJ Employee’s Withholding Allowance Certificate – NJ-W4 Form
Count One for Yourself
Every employee gets one. This corresponds to New Jersey’s $1,000 personal exemption, and you claim it even if someone else claims you as a dependent on their New Jersey return.2NJ.gov. NJ Division of Taxation – New Jersey Income Tax – Exemptions
Count One for a Spouse or Civil Union Partner
If you’re filing jointly, add one allowance for your spouse or civil union partner, but only if they don’t have a separate NJ-W4 claiming that same allowance with another employer. When both spouses work, exactly one of you should claim it. Both claiming it almost guarantees under-withholding and a balance due at filing time.
Count One for Each Dependent
Add one allowance per qualifying dependent. New Jersey follows the federal rules for who counts, which cover two categories: a qualifying child or a qualifying relative.3NJ.gov. NJ Division of Taxation – Income Tax – Dependent Exemptions A qualifying child generally lives with you more than half the year and is under 19, or under 24 if a full-time student.4Internal Revenue Service. Qualifying Child Rules A qualifying relative must receive more than half their support from you and have gross income under the federal threshold.5Office of the Law Revision Counsel. 26 USC 152 – Dependent Defined
Add Extras for Age, Blindness, and Filing Status
New Jersey grants additional exemptions that translate directly into extra withholding allowances:
- One extra allowance if you turned 65 by the last day of the tax year.
- One extra allowance if you are legally blind or disabled.
- One extra allowance for your spouse in each category above, if you’re filing jointly and they qualify.
- One extra allowance if your filing status is head of household (Box 4) or qualifying widow(er) / surviving civil union partner (Box 5).
A married couple where both spouses are 65 or older adds two allowances just for age, on top of the one each for themselves, one for the spouse allowance, and one per dependent.
Worked Examples
A single 30-year-old with no dependents claims one allowance.
A 66-year-old head of household with two qualifying children claims five: one for herself, two for the children, one for being over 65, and one for head of household status.
A married couple filing jointly, both under 65, with one child, and where only one spouse claims the spouse allowance, claims three on that spouse’s NJ-W4: one for self, one for the spouse, one for the child. The other spouse claims one, for themselves.
Line 4 Isn’t the Whole Form
The number of allowances matters, but the rate table your employer uses matters more, and that comes from Line 2 (filing status) and Line 3 (Wage Chart letter). Single filers and married-filing-separately filers get Rate A automatically and can leave Line 3 blank. Married filing jointly, head of household, and qualifying widow(er) filers default to Rate B unless they enter a different letter on Line 3.1NJ.gov. NJ Employee’s Withholding Allowance Certificate – NJ-W4 Form
Rate B is fine for many single-income joint households under $50,000 in combined wages. Above that, Rate B tends to under-withhold, because it doesn’t know about the second income pushing you into a higher combined bracket.
Using the Wage Chart
The Wage Chart on the NJ-W4 assigns a rate table letter (A through E) based on your wages against total other household wages. To use it: find your own wages in the left column, find the other household wages along the top, and enter the letter at the intersection on Line 3.1NJ.gov. NJ Employee’s Withholding Allowance Certificate – NJ-W4 Form
If you earn $55,000 and your spouse earns $40,000, the chart points to Rate A. If you earn $70,000 and your spouse earns $80,000, you’d use Rate E. Higher combinations push toward E because the progressive brackets bite harder when incomes are added together on a joint return.
Line 5: When Allowances Can’t Do the Job
Line 5 lets you request a flat extra dollar amount withheld from each paycheck. Reach for it when your regular wages aren’t the whole tax picture:
- Non-wage income such as interest, dividends, capital gains, rental income, or freelance earnings, none of which have withholding attached.
- Multiple jobs, where each employer’s rate table is blind to the other’s wages.
- Pension or retirement income received alongside wages.
To size the extra withholding, estimate the additional tax you expect to owe on that outside income and divide by the pay periods remaining in the year.1NJ.gov. NJ Employee’s Withholding Allowance Certificate – NJ-W4 Form
Update the Form When Life Changes
Your allowance count isn’t fixed. Submit a revised NJ-W4 to your employer whenever something changes your tax picture:
- Marriage or divorce.
- Birth or adoption of a child.
- A dependent aging out (a child turning 19, or 24 if a student).
- Starting or leaving a second job.
- A substantial income increase or decrease, including new investment income.
The form itself directs employees to resubmit when their income situation substantially changes.1NJ.gov. NJ Employee’s Withholding Allowance Certificate – NJ-W4 Form
Two Situations Where Line 4 Doesn’t Apply
If you had no New Jersey Gross Income Tax liability last year and expect none this year, you can write “EXEMPT” on Line 6 instead of counting allowances, and leave Lines 4 and 5 blank. The exemption lasts one year; you have to file a new NJ-W4 each year to keep it.6NJ.gov. Employee’s Withholding Allowance Certificate (Form NJ-W4) This mainly fits very low-income filers, students, part-time workers, and retirees whose only income is Social Security.
If you’re a Pennsylvania resident working for a New Jersey employer, the NJ-PA reciprocal agreement means your wages are taxed only by Pennsylvania, so you file Form NJ-165 with your employer to stop New Jersey withholding rather than counting allowances on an NJ-W4.7NJ.gov. NJ Division of Taxation – PA/NJ Reciprocal Income Tax Agreement The reciprocal agreement covers only wages, salaries, tips, and similar compensation.