New Jersey employer payroll taxes cover more ground than the federal system alone: on top of FICA and FUTA, you withhold state income tax and contribute to unemployment insurance, temporary disability insurance, family leave insurance, and two workforce development funds. For 2026, most of these state taxes apply to the first $44,800 of each employee’s wages, while the employee-side disability and family leave assessments use a higher $171,100 base. Missed filings start at $10 per day and accrue 1.25% monthly interest, so the details matter from your first payroll run.
Register Before You Run Payroll
You need two identification numbers before you can pay anyone. The first is a federal Employer Identification Number, required for any business with employees and available immediately through irs.gov.1Internal Revenue Service. Employer Identification Number The second is a New Jersey Tax ID, obtained by filing Form NJ-REG with the Division of Revenue and Enterprise Services. The form asks for your legal name, trade names, entity type, business start date, and date of first hire. Once it processes, the state issues your NJ Tax ID — your federal EIN followed by a three-digit suffix — and that number appears on every quarterly return and payment thereafter.2Business.NJ.gov. Register for Taxes
Separately, report each new hire to the New Jersey State Directory of New Hires within 20 days of the hire date. Both federal and state law require it, and the reporting applies to rehires and returning workers, not only first-time hires.3NJ Child Support. Employer Responsibilities
State Income Tax Withholding
New Jersey requires employers to withhold Gross Income Tax from wages paid to both residents and nonresidents performing services in the state.4New Jersey Legislature. Senate No. 468 Have each employee complete Form NJ-W4 to establish filing status and allowances.5NJ Division of Taxation. Employee’s Withholding Allowance Certificate (Form NJ-W4) Then apply the Division of Taxation’s withholding tables to gross wages, including salary, bonuses, and commissions. Because New Jersey’s income tax is graduated, the withholding amount rises with earnings, and the tables are updated periodically. Using an outdated table produces either an April surprise for the employee or an over-withholding complaint.
State Fund Contributions
Four state programs draw from payroll: unemployment insurance, temporary disability insurance, family leave insurance, and the two workforce development funds. Each has its own rate, and several split the cost between you and your employee.
Unemployment Insurance
UI contributions are required under N.J.S.A. 43:21-7. For 2026 the taxable wage base is $44,800 per employee. New employers pay 2.6825% for the July 2025 through June 2026 period. After three calendar years, the state assigns you an experience rating based on unemployment claims filed against your account; under the current table, experienced-employer rates run from 0.5% to 5.8%. Employees also contribute at 0.3825% for 2026, which you withhold from wages.6Division of Employer Accounts. Rate Information, Contributions, and Due Dates
Temporary Disability Insurance
TDI covers workers unable to work due to a non-job-related illness or injury. New employers pay 0.5% on the $44,800 base for July 2025 through June 2026. The employee share uses a different, much higher base: 0.19% on the first $171,100 of wages for 2026, which you withhold each pay period.6Division of Employer Accounts. Rate Information, Contributions, and Due Dates
Family Leave Insurance
FLI covers bonding with a new child or caring for a seriously ill family member. It is funded entirely by employees. The employer rate for 2026 is 0.0%, but you are still responsible for withholding the employee share of 0.23% on the first $171,100 of wages and remitting it to the state.6Division of Employer Accounts. Rate Information, Contributions, and Due Dates If you fail to withhold, you can end up personally liable for the amount that should have been collected.
Workforce Development Funds
The Workforce Development Partnership Fund and Supplemental Workforce Fund for Basic Skills use the same $44,800 wage base as UI. For July 2025 through June 2026, the combined new-employer rate is 0.1175%; employees contribute a combined 0.0425%.6Division of Employer Accounts. Rate Information, Contributions, and Due Dates The dollar amounts are small, which is exactly why they show up as audit findings — employers stop paying attention and get the calculation wrong.
Federal Taxes Running in Parallel
Your federal obligations don’t pause because you’re paying state contributions. You and your employee each pay 6.2% Social Security tax on the first $184,500 of wages in 2026, plus 1.45% Medicare on all wages with no cap. Once an employee’s earnings pass $200,000 in a calendar year, you must withhold an additional 0.9% Medicare tax from their wages; there is no employer match on that additional amount.7Internal Revenue Service. 2026 Publication 926
Federal unemployment tax (FUTA) is 6.0% on the first $7,000 of each employee’s wages, but employers current on state UI contributions get a credit of up to 5.4%, bringing the effective rate to 0.6% — a maximum of $42 per employee per year. New Jersey is not currently a credit-reduction state, so the full credit applies. FUTA is reported annually on Form 940, due January 31 for the prior year. FICA is reported quarterly on Form 941, due April 30, July 31, October 31, and January 31; if you deposited all taxes on time during the quarter, you get 10 extra calendar days to file the return.8Internal Revenue Service. Employment Tax Due Dates
Employee or Independent Contractor
Every tax above depends on one question: is the worker an employee or a contractor? If they’re an employee, you owe the full stack of withholding and contributions. If they’re a genuine contractor, you generally owe none of it. The IRS looks at behavioral control, financial control, and the nature of the relationship, with no single factor deciding the outcome.9Internal Revenue Service. Independent Contractor (Self-Employed) or Employee
New Jersey penalizes misclassification aggressively. A first violation costs up to $250 per misclassified worker, and subsequent violations reach $1,000 per worker. The state can also assess up to 5% of the misclassified worker’s gross earnings over the preceding 12 months. Serious violations can trigger a stop-work order or license suspension, along with liquidated damages to the worker of up to 200% of wages owed.10My Work Rights. Independent Contractors and Misclassification Back taxes, penalties, and interest stack on top of one another, which is why misclassification is where employers most often land in real trouble.
Quarterly Filings
New Jersey employers file Form NJ-927 each quarter, reporting gross wages, taxable wages for each fund, and contributions owed. Certain employers use a simplified version, NJ-927-W. Filings are due the last day of the month following the quarter: April 30, July 31, October 31, and January 31. Returns and payments go through the Premier Business Services portal; payment must be electronic, by EFT or credit card through the state’s authorized processor. Save the confirmation number from every submission — it is your proof of timely filing if a deadline is later disputed.
Alongside the NJ-927, you file Form WR-30 with individual wage data for each employee. WR-30 errors carry a separate penalty: $5 per unreported or inaccurately reported employee for a first offense, $10 per employee for a second offense within eight consecutive quarters, and $25 per employee for a third or later offense in that window.11Division of Employer Accounts. Interest and Penalties
What Late or Wrong Filings Cost
A late NJ-927 draws a penalty of $10 per day for the first five days. After that, the penalty continues at $10 per day or 25% of contributions due, whichever is less. A “no liability” report filed late still costs $10 per day up to $50. Unpaid contributions accrue interest at 1.25% per month from the original due date until the state receives payment.11Division of Employer Accounts. Interest and Penalties Staying current on quarterly deadlines is the cheapest form of tax planning available to a New Jersey employer.
Records to Keep
The IRS requires employment tax records to be kept at least four years after the tax is due or paid, whichever is later.12Internal Revenue Service. Topic No. 305, Recordkeeping That covers quarterly returns, payment confirmations, W-4 and NJ-W4 forms, and any documentation supporting reported wages and deductions. New Jersey doesn’t set a separate retention period for most payroll records, but six years is a safer horizon because the state’s audit window can extend past the federal minimum. Keep digital copies of every portal confirmation, rate notice, and submitted return in your own records; if the state disputes a filing, the burden of proof is yours.