Quarterly Estimated Taxes in New Jersey (2026)

exact brackets

Federal self-employment tax is the same in every state. What changes in New Jersey is whether you also write a state estimated-income-tax check — and to whom. This page uses PiggyMath’s 2026 IRS / SSA figures and New Jersey’s published exact brackets model. It is not a filed return.

By The PiggyMath Editorial Desk Last updated August 14, 2026

Federal 1040-ES dates (every state)

If you expect to owe at least $1,000 of federal tax, the IRS expects four estimated payments for income earned in 2026. The quarters are not equal: Q2 is only April–May; Q4 is four months.

Quarter	Income earned	Due
Q1	Jan 1 – Mar 31, 2026	April 15, 2026
Q2	Apr 1 – May 31, 2026	June 15, 2026
Q3	Jun 1 – Aug 31, 2026	September 15, 2026
Q4	Sep 1 – Dec 31, 2026	January 15, 2027

2027 federal dates (April 15, June 16*, September 15, January 18, 2028*) are on the deadlines hub. This page does not invent 2027 income-tax brackets. *Weekend/holiday shifts; confirm with the IRS.

NJ GIT estimates are not the federal $1,000 rule

New Jersey Gross Income Tax estimated payments go to the Division of Taxation, not the IRS. Do not assume the federal $1,000 threshold. NJ-1040-ES vouchers and due dates are in the Division’s estimated-tax instructions — they often rhyme with federal quarters but you verify before automating.

The 10.75% top GIT band is for very high incomes. Mid five-figure freelancers sit in the 1.4%–5.525% slices. PiggyMath applies the published single GIT schedule to the profit proxy (exact brackets). No NJ exemptions or credits are in that proxy.

New Jersey also has a $1,000 1099-K reporting threshold with no extra transaction test in PiggyMath’s table. Platform gross can be reported to NJ when the federal form never prints. That does not change how much GIT you owe; it changes who already mailed a copy to Trenton.

Agency: New Jersey Division of Taxation. Source note: NJ Gross Income Tax Act schedules.

Worked set-aside: single filer, QBI on, New Jersey

New Jersey uses graduated brackets (top 10.75%, exact brackets). The table applies the published single schedule to profit after SE-half — no state standard deduction or credits. The top marginal rate is not the effective rate. Federal income tax uses the 2026 single brackets, standard deduction $16,100, and the simple QBI path (lesser of 20% of QBI and 20% of taxable income before the deduction) — the same simple path as the quarterly tax calculator.

Net profit	Federal SE tax	Federal income tax*	State (model)	Annual total	Each quarter
$40,000	$5,652	$1,775	$619	$8,046	$2,011
$80,000	$11,304	$5,344	$2,615	$19,263	$4,816
$120,000	$16,955	$11,506	$4,978	$33,439	$8,360

*After standard deduction and simple QBI. State column uses STATE_RATES_2026 (exact brackets) on profit after SE-half. Locals, AMT, and NIIT omitted. Not tax advice.

Worked example at $80,000

Federal SE tax: $11,304 (15.3% × 92.35% of profit; wage base $184,500)
Profit after deductible half of SE tax: $74,348
Simple QBI deduction used: $11,650
Federal income tax: $5,344
New Jersey income tax (model): $2,615
Four equal federal+state planning checks: about $4,816 each (split the check: IRS Direct Pay vs New Jersey Division of Taxation)

Safe harbor is federal-only until you read the state instructions: 90% / 100% / 110%. Lumpy income: Form 2210 annualized method.

Run the calculators with New Jersey filled in

These links reopen the tools with this state’s planning inputs (shareable query string — nothing is uploaded).

Quarterly tax calculator — state % 3.71 at $80,000 profit (flat-rate field; New Jersey may be graduated — prefer the estimator for brackets).
Freelancer tax estimator — NJ selected, quality badge on the state line.
Deadline calendar (.ics) · 2026 tax constants

Frequently asked questions

Does New Jersey follow the IRS quarterly dates?

Federal dates are April 15, June 15, September 15, and January 15 (next business day if needed). New Jersey estimated income tax, if any, is a separate payment to New Jersey Division of Taxation — confirm that calendar; do not treat federal safe harbor as a state safe harbor.

What is the federal $1,000 rule?

If you expect to owe $1,000 or more when you file Form 1040, the IRS generally expects 1040-ES installments. That trigger does not set your state’s estimated-tax threshold.

Can I skip New Jersey estimates if I pay the IRS in full?

No. A federal payment does not credit New Jersey. Pay New Jersey Division of Taxation on its own vouchers when its rules say you must.

My freelance income is lumpy. Do I have to pay equal quarters?

Federally you can annualize on Form 2210. Equal 25% payments are the simple path. State annualization rules differ — check the agency instructions.

Sources

Figures reuse PiggyMath’s 2026 constants (Rev. Proc. 2025-32, SSA wage base $184,500, STATE_RATES_2026). Educational estimates — not tax advice. How we check our math →