New Jersey Self-Employment Tax Calculator (2026)
Federal self-employment tax, federal income tax and New Jersey state income tax on 1099 income, plus how much to set aside for each estimated payment.
Federal 2026 and New Jersey 2026 data checked against the official publications, last on 2026-09-05 Runs in your browser — nothing you type is sent anywhere, not even when you reload or share the link No sign-up Methodology and data status
- Total tax
- $17,234
- Effective rate
- 23.9%
- Set aside per quarter
- $4,308
- After-tax income
- $54,766
| Breakdown | |
|---|---|
| Net profit (income − expenses) | $72,000 |
| Self-employment tax | $10,173 |
| Social Security (12.4%) | $8,245 |
| Medicare (2.9%) | $1,928 |
| Federal income tax | $4,630 |
| Adjusted gross income | $66,913 |
| Standard deduction | −$16,100 |
| Qualified business income deduction (20%) | −$10,163 |
| Taxable income · marginal rate 12.0% | $40,651 |
| New Jersey income tax | $2,430 |
| Total federal + state | $17,234 |
Amounts to set aside, not bills: federal $3,701 for each Form 1040-ES installment (Apr 15, Jun 15, Sep 15, Jan 15). New Jersey: $608 per installment on its own schedule. For the safe-harbor amount and payments you have already made, use the quarterly calculator with these inputs.
New Jersey and self-employment income
New Jersey taxes net profits from business under seven brackets from 1.4% to 10.75%. It does not start from federal AGI: there is no standard deduction, no QBI deduction, and the federal deduction for half of self-employment tax is not allowed. A $1,000 personal exemption and $1,500 per dependent apply instead.
New Jersey rules used by this calculator (2026)
- New Jersey applies 7 brackets from 1.4% to 10.75% for 2026.
- There is no standard deduction.
- Each filer gets a $1,000 personal exemption.
- Each dependent adds a $1,500 deduction.
- New Jersey's earned income credit is 40% of the federal credit, refundable; the calculator applies it.
- A refundable $1,250 falling to $0 by income credit per child under 6; the calculator applies it.
- No New Jersey tax is due when income is $10,001 or less ($20,001 joint) before exemptions.
- New Jersey does not allow the federal deduction for half of self-employment tax; state tax applies to net profit before that deduction.
- It does allow the self-employed health insurance deduction and solo 401(k) contributions on its own return, but not SEP-IRA contributions.
What a New Jersey freelancer may still owe
- New Jersey requires estimated payments (Form NJ-1040-ES) when you expect to owe more than $400.
- Filers with gross income of $10,000 or less ($20,000 joint or head of household) owe no New Jersey tax at all.
- Applied here: the New Jersey earned income tax credit (40% of the federal credit, refundable) and the refundable child tax credit for children aged 5 or under ($1,000 at New Jersey taxable income up to $30,000, stepping down to $200 at $80,000 for 2025; $1,250 stepping down to $250 for 2026–2028 under P.L.2026, c.26, which the 2026 estimate applies). Married filing separately gets neither.
What New Jersey costs at three levels of profit (2026)
A single filer with no dependents and no other income, taking the standard deduction. The state column is New Jersey's own tax after its deductions, exemptions and credits.
| Net profit | Federal | New Jersey | Total | Effective rate |
|---|---|---|---|---|
| $50,000 | $9,732 | $1,215 | $10,947 | 21.89% |
| $75,000 | $15,495 | $2,596 | $18,091 | 24.12% |
| $100,000 | $22,365 | $4,180 | $26,545 | 26.54% |
At $75,000 of profit, New Jersey takes $2,596 — 14.35% of the total tax bill. Change any input in the calculator above to see your own figures.
How the federal part is worked out
Net profit is 1099 income less business expenses (Schedule C). Self-employment tax is 15.3% of 92.35% of that profit — 12.4% Social Security up to $184,500 of combined wages and earnings, 2.9% Medicare on all of it. Half of that tax, the $16,100 standard deduction ($32,200 joint) and the 20% qualified business income deduction come off before the 2026 brackets are applied; the child tax credit and the earned income credit then reduce what is left, and the refundable parts can offset self-employment tax. The methodology page sets out the full sequence and every rule the calculator leaves out, including how New Jersey's figures are derived.
Quarterly estimated tax deadlines (2026)
If you expect to owe $1,000 or more of federal tax for the year, the IRS expects four estimated payments (Form 1040-ES). New Jersey runs its own estimated-payment schedule with its own threshold (see above); the calculator shows the federal installment and the New Jersey installment separately, and one combined amount to set aside each quarter.
The 2026 dates are April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027. The federal amount is split into four equal Form 1040-ES installments after any withholding you entered; paying 100% of last year's tax instead (110% above $150,000 of prior-year AGI) also avoids the penalty. The quarterly calculator works that out and subtracts what you have already paid, and the guide to the due dates explains the rule.
Common questions
Does New Jersey tax self-employment income differently from wages?
For state income tax, net profit from self-employment is ordinary income like wages. The self-employment tax itself is federal only; New Jersey does not add a state equivalent.
Is half of self-employment tax really deductible?
Yes, for federal tax. The employer-equivalent half is an adjustment to income on Schedule 1, which lowers your AGI and therefore your federal income tax. It does not reduce the self-employment tax itself. New Jersey does not allow this deduction for state tax.
Does an LLC change these numbers?
For federal income tax and self-employment tax, a single-member LLC taxed as a sole proprietorship follows exactly the calculation shown here. State and local obligations can still differ: an LLC may be a taxable entity for a state's franchise, gross-receipts or excise tax, and may owe registration or licence fees a sole proprietor does not — New Jersey's are listed above. Electing S-corporation status changes the federal arithmetic too (salary plus distributions) and is outside this tool's scope.
What if I moved to New Jersey during the year?
Income earned while you were a resident of another state is taxable there under that state's rules. This calculator assumes all income was earned as a New Jersey resident.
Data sources and status
Federal figures for 2026: verified · last verified 2026-09-05 · the revenue procedures and forms they were read from, with every other data set
New Jersey figures for 2026: verified · last verified 2026-09-08
- New Jersey Division of Taxation : 2025 Form NJ-1040 instructions, tax rate schedules
- N.J.S.A. 54A:2-1 (rates), 54A:3-1 (personal and dependent exemptions)
- New Jersey Division of Taxation : 2025 Form NJ-1040 and instructions: line 58 New Jersey earned income tax credit (40% of the federal credit, refundable; flat $260 for childless filers aged 18 or over who meet every federal rule except age; married filing separately only with a qualifying child and living apart), line 65 New Jersey child tax credit (per child aged 5 or under, by New Jersey taxable income: $1,000 up to $30,000, $800 to $40,000, $600 to $50,000, $400 to $60,000, $200 to $80,000; refundable; not for married filing separately); N.J.S.A. 54A:4-7 and 54A:4-17.1
- P.L.2026, c.26 (S-4531, approved 2026-06-30), read on pub.njleg.gov : New Jersey child tax credit of $1,250 / $1,000 / $750 / $500 / $250 by the same New Jersey taxable income bands for tax years 2026–2028, reverting in 2029
- New Jersey's rates, brackets, exemptions and the earned income tax credit share are unindexed statute (N.J.S.A. 54A:2-1, 54A:3-1, 54A:4-7) and unchanged by any 2026 enactment found in the P.L.2026 chapter list; the 2025 NJ-1040 figures therefore carry into 2026
- New Jersey Division of Taxation : Income Tax: Business Income (njit11): sole proprietors deduct qualified contributions to a self-employed 401(k) plan in computing net profit; contributions above the federal limits are not deductible
- New Jersey Division of Taxation : Income Tax: Deductions (njit13) and 2025 NJ-1040 instructions, Worksheet F: the self-employed health insurance deduction is added on line 5 after the 2% medical-expense floor; IRA and Keogh contributions are not deductible
New Jersey Division of Taxation · How figures are checked · Corrections log
Other states
Paying as you go? The quarterly estimated tax calculator applies the federal safe harbor and subtracts what you have already paid.