New Jersey Capital Gains Tax Calculator 2025

Use this free calculator to estimate capital gains tax in New Jersey, including federal rates, NIIT when applicable, and New Jersey's state treatment (graduated income tax (top rate up to 10.75%)).

State treatment: Graduated income tax (top rate up to 10.75%)·Official source ↗

Capital Gains Calculator

Federal · NIIT · All 50 states

2026 ratesIRS verified

Follow the three steps, save the sale, then calculate. Required fields are marked with *.

Your tax profile

These apply to every sale in this estimate.

Tax year

Filing status

State

Annual taxable income (before these gains)

Capital loss carried from prior years

What you sold

Prices and quantity for this lot. Give it a name if you will add more than one sale.

Asset type

Asset name

Buy price

Sell price

Quantity / units

Selling expenses

Repurchased within 30 days (wash-sale check)

When you bought and sold

The IRS uses these dates to decide short-term vs long-term rates.

Buy date

Sell date

Next: Save this sale to the order log, then click Calculate now. Tax results do not update until you calculate.

Order log

Sales included in this tax estimate.

Please fill in the details to see your results. Follow the three steps on the left, then save a sale here.

New Jersey capital gains tax overview

New Jersey capital gains tax planning starts with the federal rules, then layers on New Jersey's own treatment (graduated income tax (top rate up to 10.75%)). This calculator estimates both so you can see a combined effective rate before you sell stocks, crypto, real estate, or other capital assets.

Federally, short-term gains (held one year or less) are taxed as ordinary income, while long-term gains generally use 0%, 15%, or 20% preferential rates for tax years 2025 and 2026. High earners may also owe the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold for their filing status.

New Jersey generally taxes capital gains under its graduated income-tax framework. For planning estimates we apply New Jersey's top modeled rate (graduated income tax (top rate up to 10.75%)) to taxable gains. Your actual marginal state rate may be lower depending on total New Jersey taxable income.

New Jersey figures in this model are drawn from the official source we cite for the state: https://www.nj.gov/treasury/taxation/. Confirm the current-year statute or agency page before you file — rates and special rules can change.

Use the calculator above with filing status and income to stack federal long-term or short-term tax, NIIT, and New Jersey state tax. Compare nearby states from the links below, review our methodology for data sources (including New Jersey's official reference), and consult a CPA before filing. This page is educational and not tax advice.

New Jersey rate snapshot

Category	graduated
Summary	Graduated income tax (top rate up to 10.75%)
Abbreviation	NJ
Top / modeled rate	10.75%

Always verify rates with theNew Jersey revenue agencyand review ourmethodology. Not tax advice.

FAQ

New Jersey FAQs

How does New Jersey tax capital gains?

New Jersey generally taxes capital gains under its graduated income-tax framework (Graduated income tax (top rate up to 10.75%)). For planning we apply the top modeled rate to taxable gains; your actual New Jersey marginal rate may be lower depending on total taxable income.

Is the New Jersey amount on this calculator exact?

No. Graduated states are estimated at the top modeled rate, not a full multi-bracket state return. Federal tax and NIIT are stacked separately. Federal short-term and long-term capital gains tax, and the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold, can still apply.

Where do New Jersey rates come from?

Our model cites https://www.nj.gov/treasury/taxation/. Use this page for a combined federal-plus-state planning estimate, then confirm with New Jersey instructions or a CPA.

Guides