Free tool, 2026 tax year, New Jersey

New Jersey quarterly tax calculator for freelancers.

New Jersey taxes income at rates from 1.4% to 10.75%. It starts from its own gross income rather than federal AGI, so the half of self employment tax you deduct federally is still taxed here.

Your numbers

Prefilled with an example. Change any field to see your own numbers.

Safe harbor and deduction limits

Optional. Last year's figures unlock the prior year safe harbor tests, which are often the smaller number you can pay without a penalty.

Form 1040, total tax line. Leave at 0 if 2026 is your first year owing tax.
Your 2025 New Jersey return, tax after credits. Leave at 0 to use only this year's test.
Used for both the federal and the New Jersey high income tests.
Leave at 0 if you have no payroll. Only matters once your taxable income passes the qualified business income threshold.

Your next estimated payments

$15,034

Federal, due Jan 15, 2027

$2,486

New Jersey, due Jan 15, 2027

Each is what you still owe for the year, split across the deadlines still ahead.

Next federal payment $15,034, due Jan 15, 2027. Next New Jersey payment $2,486, due Jan 15, 2027.

Federal safe harbor $11,800 per payment

Pay at least $11,800 across the year, a quarter of it by each deadline, and the IRS underpayment penalty cannot apply. Based on 100% of last year's federal tax, which is the lower of the two tests.

Some 2026 deadlines have already passed. A quarter of that total was due by each one, so a quarter paid late can still carry a penalty; paying now stops it growing. See what it costs.

New Jersey safe harbor $1,988 per payment

Pay at least $1,988 across the year, on the New Jersey installment dates, and the New Jersey underpayment charge cannot apply. Based on 80% of this year's estimated New Jersey tax. Add last year's New Jersey tax below to see if that test is cheaper.


How those numbers are built
What you earned
Expected 1099 income $85,000
Less deductible business expenses $12,000
Net profit from freelancing $73,000
Self employment tax
Earnings subject to self employment tax $67,416
Social Security portion $8,360
Medicare portion $1,955
Additional Medicare over the threshold $0
Self employment tax $10,315
Federal income tax
Deductible half of self employment tax $5,157
Qualified business income deduction $10,349
Standard deduction for your filing status $16,100
Other W-2 income added back $0
Taxable income after deductions $41,394
Federal income tax $4,719
Federal total for 2026 $15,034
Less federal estimated payments already made $0
Still owed to the IRS $15,034
Your next federal payment $15,034
New Jersey income tax
New Jersey gross income (no deduction for half of SE tax) $73,000
Less personal exemption, $1,000 each $1,000
New Jersey taxable income $72,000
Tax from the 2026 New Jersey tax rate table $2,486
Credits and surtaxes (none modeled) $0
New Jersey total for 2026 $2,486
Less New Jersey estimated payments already made $0
Still owed to New Jersey $2,486
Your next New Jersey payment $2,486
Federal and New Jersey tax for 2026 $17,519

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How New Jersey is different.

New Jersey estimated tax, 2026

New Jersey taxes income at rates from 1.4% to 10.75%. These are its 2026 estimated payment dates. If one falls on a weekend or holiday, it moves to the next business day.

2026 payment dates

  • Apr 15, 2026
  • Jun 15, 2026
  • Sep 15, 2026
  • Jan 15, 2027

What changes in New Jersey

  • No deduction for half of self employment tax and no standard deduction. You get a $1,000 exemption for yourself and $1,000 for a spouse on a joint return.
  • Safe harbor is lower than federal: 80% of this year's tax, or 100% of last year's, with no 110% step up (Form NJ-2210).
  • Head of household filers use the joint rate table (Table B), not the single one.
  • Four equal payments on April 15, June 15, September 15, 2026, and January 15, 2027. File your 2026 return and pay in full by February 15, 2027 and the January payment is not needed.

Questions answered.

Why is my New Jersey income higher than my federal AGI?

Federal AGI subtracts the deductible half of your self employment tax. New Jersey does not allow that subtraction, so your New Jersey gross income is your full net profit plus any wages. On $73,000 of profit that is about $5,000 more income taxed in New Jersey than federally.

What is the New Jersey safe harbor for estimated tax?

Form NJ-2210 charges interest only if what you paid falls short of 80% of your 2026 tax, and it excuses you if you paid at least 100% of your 2025 tax. That 80% is lower than the federal 90%, and there is no higher prior year percentage for high earners.

Do head of household filers use the joint rates in New Jersey?

Yes. New Jersey has two rate tables. Table A is for single and married filing separately, and Table B is for married filing jointly, head of household, and qualifying widow(er). Table B is lower in the middle of the income range, so head of household filers pay noticeably less than single filers on the same income.