New Jersey Self-Employment Tax Calculator

Does New Jersey tax self-employment income?

Yes. New Jersey taxes self-employment income at 1.4%–10.75%, on top of your federal tax. New Jersey taxes your business profit as ordinary income, stacked on top of the federal self-employment tax and federal income tax.

The estimate above combines all three: federal income tax, federal self-employment tax, and New Jersey state income tax — so you can see your full New Jersey picture in one number.

What you owe as a New Jersey freelancer

First, federal: self-employment tax of 15.3% on 92.35% of net profit, plus federal income tax after the standard deduction and 20% QBI deduction.

Then New Jersey state income tax starting at 1.4%. Note that New Jersey doesn't offer the 20% QBI deduction, so your state taxable income is higher than your federal taxable income — this tool accounts for that.

Your 2026 quarterly due dates

Federal estimated taxes are due four times a year (shown above). New Jersey has no standard deduction (it uses small personal exemptions we don't model), so this may slightly overstate your tax. There's no county or city income tax on this income.

Would an S-Corp help in New Jersey?

An S-Corp cuts the 15.3% self-employment tax on the profit you take as distributions instead of salary — a federal saving that applies in New Jersey too. Use the comparison above to weigh it against the $1,200–$2,500 yearly cost of payroll and a separate return.

What this estimate covers

This is a 2026 planning estimate for federal income tax, self-employment tax, and New Jersey state income tax (brackets + state standard deduction). It does not model state tax credits, or every state-specific adjustment, and it isn't tax advice. Confirm anything material with a CPA.